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h=this._ua.browser.name,f=this._ua.browser.major,v=this._ua.device.model||this._ua.os.name,b=this._ua.device.vendor;n=n||{};var g=y({},this._apiPropertiesTrackingOptions);i=y({},i||{},g),t=t||{},o=o||{},r=r||{};var m={device_id:this.options.deviceId,user_id:this.options.userId,timestamp:d,event_id:l,session_id:this._sessionId||-1,event_type:e,version_name:this.options.versionName||null,platform:Ge(this,"platform")?this.options.platform:null,os_name:Ge(this,"os_name")&&h||null,os_version:Ge(this,"os_version")&&f||null,device_model:Ge(this,"device_model")&&v||null,device_manufacturer:Ge(this,"device_manufacturer")&&b||null,language:Ge(this,"language")?this.options.language:null,api_properties:i,event_properties:V(F(t)),user_properties:V(F(n)),uuid:function e(t){return t?(t^16*Math.random()>>t/4).toString(16):([1e7]+-1e3+-4e3+-8e3+-1e11).replace(/[018]/g,e)}(),library:this.options.library,sequence_number:p,groups:V(G(o)),group_properties:V(F(r)),user_agent:this._userAgent};return Ve(this)&&(m.plan={branch:this.options.plan.branch||void 0,source:this.options.plan.source||void 0,version:this.options.plan.version||void 0,versionId:this.options.plan.versionId||void 0}),e===w.IDENTIFY_EVENT||e===w.GROUP_IDENTIFY_EVENT?(this._unsentIdentifys.push({event:m,callback:a,errorCallback:u}),this._limitEventsQueued(this._unsentIdentifys)):(this._unsentEvents.push({event:m,callback:a,errorCallback:u}),this._limitEventsQueued(this._unsentEvents)),this.options.saveEvents&&this.saveEvents(),this._sendEventsIfReady(),e===w.IDENTIFY_EVENT&&this._connector&&this._connector.identityStore.editIdentity().updateUserProperties(V(F(n))).commit(),l}catch(e){P.error(e)}else ze(a,u,0,"No request sent",{reason:"Missing eventType"})};var Ve=function(e){return e.options.plan&&(e.options.plan.source||e.options.plan.branch||e.options.plan.version||e.options.plan.versionId)},Ge=function(e,t){return!!e.options.trackingOptions[t]},Le=function(e){for(var t=["city","country","dma","ip_address","region"],i={},n=0;nthis.options.savedMaxCount&&e.splice(0,e.length-this.options.savedMaxCount).forEach(function(e){ze(e.callback,e.errorCallback,0,"No request sent",{reason:"Event dropped because options.savedMaxCount exceeded. 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ye(e,a,this.options.headers).send(function(e,t){u._sending=!1;try{200===e&&"success"===t?(u.removeEvents(n,o,e,t),u.options.saveEvents&&u.saveEvents(),u._sendEventsIfReady()):(u._logErrorsOnEvents(n,o,e,t),413===e&&(1===u.options.uploadBatchSize&&u.removeEvents(n,o,e,t),u.options.uploadBatchSize=Math.ceil(i/2),u.sendEvents()))}catch(e){}})}catch(e){var c="Request failed to send";P.error(c),u._logErrorsOnEvents(n,o,0,c),u.removeEvents(n,o,0,c,{reason:e.message})}}else{navigator.sendBeacon(e,new URLSearchParams(a))?(this.removeEvents(n,o,200,"success"),this.options.saveEvents&&this.saveEvents()):this._logErrorsOnEvents(n,o,0,"")}}}else this.removeEvents(1/0,1/0,0,"No request sent",{reason:"API key not set"})},Ie.prototype._mergeEventsAndIdentifys=function(e){for(var t=[],i=0,n=-1,o=0,r=-1;t.length=this._unsentIdentifys.length,u=i>=this._unsentEvents.length;if(u&&a){P.error("Merging Events and Identifys, less events and identifys than expected");break}a||!u&&(!("sequence_number"in 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IuZ0|J_tu3WKK7>btcTTSWd?fGTOm2+IxAo zkgOIDh#Ek{I%-A7szj?mcNo<(g>c)GSdWg@3%vM=6^_C+6$OfN0w6m;=mGX0#k_fk zifMO4UY-*)WwHBeurIFd{6l)?>VP`Bm*{TA>RfLZlo!d`XL(smNJ)A@GTF7VC9Ekn z%NT4)t^vZ#J=)BZF{2^u*Vqd2%OR@H*5y8z?QWr-9bviMbdxM*U01wa%m!LaZ!Kv=T`VK>umdC z^V_r_q(NVT$DeCPlM{w&-G zpN7GCN%HQET3k;lSNM8^<$6iUUGkKM)D^sL5 zFeyhb=CiK5aEQ8OKJe>EN%|a5xy4JCUk)wJ1+!+CdB>E*vTmxA2850QXe}Rtfg+yh za{vr0Vs&juhM%E)OHKabE?gAg`d_3s)XD&a)r@mw{@DVacy%9{$W(DPqaHu(;iZro zreAwMa#N`2m$;L$Rx-V(KAxvfHk-m`L_t6FrtP&w3;B6j)qU`y@)rc{p*fQpvayHchr%>Db@yp`En*eve zdAn-0m$6O&Q8wIok6hdkA9Pge((U^xXG$kAIxHx7Sj z2VfAo_<2g+sXesol_{Wws&bBm`IHWQ$dimq1l!(TKWJ%LIsDOJOGEv^Z>uf~%^9PZ zBiFqTpm2Qt^&Rq!vRbd+OF+`2PHvg0uX8`+kG}awSh1ap@cM8~wa&VtceRsaTb@=b za%F0ccXSH_@QLH)fH^ZQL`OJro{0oAN0Ou~^sHw0)yB(D8=3EI zlvo@aaaXlx)RL?w@Y7~`{`twiJw4LR?!~D!<7T#Q1PcJ!8E@w1tKVjN)aX-aEr4tk z!L#peOfYX76V#bc&oJfxDexT>mSOh+E{s3(QX(AW3(Y^X1G!_nA0<#|Hvxn5|BL>g d7=(X*K4F + + + + + + + + + + + + + + + + + + + + + + + Airflow i KNADA - NADA + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +

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KNADA Airflow

+ +

Apache Airflow er et verktøy for å orkestrere, skedulere og monitorere datapipelines. +Web-grensesnittet til Airflow gir brukeren enkel tilgang til å lese logger fra de ulike stegene i pipelinen, trigge datapipelines manuelt og sjekke statistikk på tidligere kjøringer.

+

En datapipeline i Airflow, eller DAG (Directed Acyclic Graph), er et sett med oppgaver man ønsker å kjøre som beskriver rekkefølge og avhengigheter mellom oppgavene. +Disse DAG-ene beskrives programmatisk i python filer og legges i et Github repo som periodisk synkroniseres med Airflow instansen. +Nedenfor ser du en en grafisk representasjon av flyten i en DAG:

+
flowchart LR
+    A(email_start) --> C(waiting_1)
+    B(slack_start) --> C(waiting_1)
+    C --> D(fetch_styrk)
+    C --> E(fetch_nace)
+    C --> F(fetch_pam)
+    D --> G(waiting_2)
+    E --> G(waiting_2)
+    F --> G(waiting_2)
+    G --> H(transform_styrk)
+    G --> I(transform_nace)
+    G --> J(transform_pam)
+    H --> K(waiting_3)
+    I --> K(waiting_3)
+    J --> K(waiting_3)
+    K --> L(slack_success)
+    K --> M(email_success)
+

Kom i gang

+

NADA tilbyr team eller enkeltpersoner å sette opp Airflow instanser i KNADA gjennom Knorten.

+

For mer informasjon om Airflow, se Airflow docs

+
+

Vær oppmerksom på at alt av logger fra en Airflow task vil skrives til en bucket i knada-gcp prosjektet, og være tilgjengelig etterpå for Airflow og direkte for NADA som er admins i knada-gcp. Vær derfor forsiktig så ikke sensitiv informasjon skrives til stdout i koden som kjøres.

+
+

Github repo for DAGs

+

For å bruke Airflow i KNADA kreves det et Git-repo under navikt organisasjonen på Github.com som inneholder Python-filer med DAGer.

+

Hvert minutt vil Github repoet bli synkronisert til Airflow instansen, og Airflow vil lese DAGene definert i repoet.

+

Eksempler på DAGs repoer

+
    +
  • nada-dags NADA sin eksempler for DAGer.
    • +
  • knada-dags NADA sin lekekasse for DAGer, fungerende og ikke fungerende DAGer.
    • +
  • Dataverk Airflow eksempel på intergrasjonstester av Airflow som kjører i Github.
    • +
  • sykefravar-dags Team Sykefravær sine DAGer.
    • +
+

Konfigurasjon av Airflow

+

I KNADA er Airflow konfigurert til å bruke Kubernetes Executor. +Dette innebærer at hver task i en Airflow DAG vil spinne opp og kjøre en egen worker i en separat Kubernetes pod. +Det gjør at man står fritt til å selv spesifisere miljøet til Airflow-workeren. +Nedenfor har vi listet opp noen av de konfigurasjonen vi tror er nyttig å vite om.

+
+

Merk: Hovedcontaineren som worker-poden bruker vil alltid hete base, så dersom en ønsker å overskrive noe som gjelder spesifikt for denne containeren må man referere til den med navn som i eksemplene under.

+
+

Docker image for Airflow

+

Ut av boksen bruker Airflow Docker images eid av Nada, disse er definert i navikt/knada-images. +Disse Docker imagene kommer med drivere for Oracle, og Postgres, men inneholder ikke et stort utvalg av Python biblioteker. +Du finner en oppdatert liste i navikt/knada-images. +Dersom du har behov som ikke er dekket av oppsettet vår må du lage dine egne Docker images, og bruke de i stedet. +Se bygge eget worker image for guide på hvordan å dette kan gjøres. +Under følger et eksempel på hvordan å overstyre imaget som hovedcontaineren til Airflow workeren skal bruke:

+
from airflow import DAG
+from airflow.utils.dates import days_ago
+from airflow.operators.python_operator import PythonOperator
+from kubernetes import client as k8s
+
+def myfunc():
+    print("kjør task")
+
+with DAG('min-dag', start_date=days_ago(1), schedule_interval=None) as dag:
+    run_this = PythonOperator(
+        task_id='test',
+        python_callable=myfunc,
+        executor_config={
+           "pod_override": k8s.V1Pod(
+               spec=k8s.V1PodSpec(
+                   containers=[
+                      k8s.V1Container(
+                         name="base",
+                         image="ghcr.io/navikt/mitt-airflow-image:v1"
+                      )
+                   ]
+               )
+           )
+        },
+        dag=dag
+    )
+
+

Har du behov for at hele Airflow instansen skal bruke ditt Docker image så spesifiseres det i Knorten.

+

Ressursbehov for Airflow

+

Dersom en ikke spesifiserer ressursbehov for Airflow taskene sine vil de kjøre med standard instillinger som er 512 MB minne, 0.5 vCPU, og 1Gi disk (ephemeral-storage). +Dette kan man enkelt overstyre for alle operators gitt at de tar utgangspunkt i BaseOperator til Airflow. +Under følger et eksempel på hvordan ressursbehov for en task endres til 2GB minne,2 vCPU, og 5Gi disk:

+
from airflow import DAG
+from airflow.utils.dates import days_ago
+from airflow.operators.python_operator import PythonOperator
+from kubernetes import client as k8s
+
+def myfunc():
+    print("kjør task")
+
+with DAG('min-dag', start_date=days_ago(1), schedule_interval=None) as dag:
+    run_this = PythonOperator(
+        task_id='test',
+        python_callable=myfunc,
+        executor_config={
+           "pod_override": k8s.V1Pod(
+               spec=k8s.V1PodSpec(
+                   containers=[
+                      k8s.V1Container(
+                         name="base",
+                         resources={
+                           "requests": {
+                               "cpu": "2",
+                               "memory": "2Gi",
+                               "ephemeral-storage": "5Gi"
+                           }
+                         }
+                      )
+                   ]
+               )
+           )
+        },
+        dag=dag
+    )
+
+

Trafikk ut fra Airflow

+

For å skallsikre Airflow har man muligheten til å skru på allow list for teamets tjenester. +Dette innebærer for Airflow at man i hvert task må spesifisere hvilke eksterne tjenester (les: tjenester utenfor Airflow) man skal snakke med. +Vi har stengt av muligheten for eksterne tjenester å snakke inn til Airflow.

+

I podene hvor Airflow tasken kjører blokkeres i utgangspunktet all trafikk ut, med følgende unntak:

+
    +
  • github.com: Airflow vil alltid trenge å hente repoet som koden ligger i
    • +
  • storage.googleapis.com: Airflow skriver loggene til en Google Cloud Storage bucket
    • +
  • Knaudit: tjeneste som logger hvilke jobber som kjøres for hvert team til Oracle for DVH
    • +
+

Utover dette er man nødt til å eksplisitt spesifisere hvilke kilder man trenger å snakke med (gjelder både interne og eksterne addresser) for hver enkelt task i en DAG. +Dette gjør man ved å legge på en allowlist annotasjon på pod ressursen med hostnavnet og porten på det man trenger å nå.

+
from airflow import DAG
+from airflow.utils.dates import days_ago
+from airflow.operators.python_operator import PythonOperator
+from airflow.contrib.operators.slack_webhook_operator import SlackWebhookOperator
+from kubernetes import client as k8s
+import os
+import logging
+
+def myfunc():
+    import requests
+    res = requests.get("https://ssb.no/api")
+    res.raise_for_status()
+
+with DAG('min-dag', start_date=days_ago(1), schedule_interval=None) as dag:
+    slack = SlackWebhookOperator(
+        http_conn_id=None,
+        task_id="slack-message",
+        webhook_token=os.environ["SLACK_TOKEN"],
+        message="start min-dag",
+        channel="#minkanal",
+        link_names=True,
+        executor_config={
+            "pod_override": k8s.V1Pod(
+                metadata=k8s.V1ObjectMeta(annotations={"allowlist": "hooks.slack.com"})
+            )
+        }
+    )
+
+    run_this = PythonOperator(
+        task_id='test',
+        python_callable=myfunc,
+        executor_config={
+            "pod_override": k8s.V1Pod(
+                metadata=k8s.V1ObjectMeta(annotations={"allowlist": "ssb.no,db.adeo.no:1521"})
+            )
+        },
+    dag=dag)
+    
+    slack >> run_this
+
+

allowlist er en kommaseparert liste med hostnavn og port på formatet hostnavn:port. +Dersom man ikke angir port vil vi bruke 443 som standardport. +Når jobben er ferdig vil tilgangene bli fjernet.

+

Allow list ved bruk av Dataverk Airflow

+

Man kan også sette allowlist for operators som lages med dataverk-airflow som i eksempelet under.

+
from airflow import DAG
+from airflow.utils.dates import days_ago
+from dataverk_airflow import notebook_operator
+
+with DAG('dag', start_date=days_ago(1), schedule_interval=None) as dag:
+    task = notebook_operator(dag=dag,
+                             name="knada-pod-operator",
+                             repo="navikt/repo",
+                             nb_path="notebooks/mynb.ipynb",
+                             allowlist=["ssb.no", "db.adeo.no:1521"])
+
+

API-tilgang til Airflow

+

Har man behov for at en ekstern tjeneste skal snakke med API-et til Airflow trenger Nada å konfigurere noe på "baksiden" og lage en service bruker for dere. +Ta kontakt i Slack#nada, så fikser vi dette for dere. +Vi vil ta opprette en service account for deres Airflow, og lage en ekstern adresse (som tilgangsstyres med Cloud Armor).

+

Et typisk scenario for dette er å la IWS styre jobber i Airflow. +Akkurat dette scenarioet er også dokumentert i Confluence/Analytisk Plattform.

+

Airflowmetrikker i Grafana

+

Man kan nå lage Grafana-dashboard i grafana.nais.io med metrikker fra Airflow. +Airflow har egen dokumentasjon for hvilke metrikker som blir delt. +Metrikkene bruker Google sitt Monitoring Query Language, så det enkleste er nok å bruke nedtrekksmenyene i Grafana når man lager spørringer. +Vi har lagd et enkelt eksempel-dashboard som man kan bruke som inspirasjon på hva man kan følge med på.

+

Bygge eget Airflow worker image

+

I noen tilfeller har du kanskje flere avhengigheter enn det vi tilbyr i standard Airflow-oppsett. +For å legge til ekstra avhengigheter kan du benytte et Github template som vi har opprettet, for å lage et eget repo. +Når du har opprettet repoet og lagt til avhengighetene du ønsker i requirements.txt vil arbeidsflyten som allerede er definert generere et Dockerimage som kan benyttes som Docker image for Airflow.

+

NB: Hvis du bygger image lokalt på en nyere Mac så er det viktig at du bygger imaget for riktig plattform. +Legg til --platform linux/amd64 i docker build kommandoen.

+

KubernetesPodOperator

+

Dersom du har behov for å bruke Kubernetes Pod Operators så har vi et eksempel i nada-dags som fortsatt lar deg klone et annet repo, og installere Python-pakker ved oppstart.

+

Audit logs av tasks

+

Som et risikoreduserendetiltak logger vi hvem som kjører hvilke jobber i KNADA ned til Datavarehus. +Dette er for at Datavarehus skal ha bedre kontroll på hvem som snakker med de. +Selve tjenesten heter knaudit, og det er kun Datavarehus og NADA som har tilgang til disse loggene.

+

Eksempel på hva vi logger:

+
{"commit_sha1":["d19dcf695f043c6eff6b0cc2478b58d45299ca97"],"hostname":["mycsvdag-starting-fc8dfe28afae414da33a5d2a57db85d1"],"run_id":["scheduled__2023-05-03T05:30:00+00:00"],"timestamp":["2023-05-03T05:35:11.000Z"],"git_repo":["github.com/navikt/test-team-dag"],"ip":["321.312.312.321"],"namespace":["team-test-ncnv"],"task_id":["starting"],"git_branch":["main"],"dag_id":["MyCSVDAG"],"triggered_by":["airflow"]}
+
+

Hvis det er en manuell kjøring så vil triggered_by være satt til NAV-ident for den innlogget Airflow-bruker.

+ + + + + + + + + + + + + + + + + + + + +
+
+ + + + + +
+ +
+ + + +
+
+
+
+ + + + + + + + + + + + \ No newline at end of file diff --git a/analyse/airflow/managed-airflow/index.html b/analyse/airflow/managed-airflow/index.html new file mode 100644 index 00000000..1a8939c4 --- /dev/null +++ b/analyse/airflow/managed-airflow/index.html @@ -0,0 +1,1530 @@ + + + + + + + + + + + + + + + + + + + + + + + + + Google managed Airflow (Cloud Composer) - NADA + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
+ +
+ + + + + + +
+ + +
+ +
+ + + + + + +
+
+ + + +
+
+
+ + + + + +
+
+
+ + + +
+
+
+ + + +
+
+
+ + + +
+
+ + + + + + + +

Google managed Airflow (Cloud Composer)

+ +
+

Cloud Composer is a managed Apache Airflow service that helps you create, schedule, monitor and manage workflows. +Cloud Composer automation helps you create Airflow environments quickly and use Airflow-native tools, such as the powerful Airflow web interface and command line tools, so you can focus on your workflows and not your infrastructure.

+
+

Du finner den offisielle dokumentasjonen for Cloud Composer hos cloud.google.com.

+

Opprett ny Composer instans

+

For å sette opp en ny Cloud Composer instans gjennom Google Cloud Platform konsollen (GCP), +gå til Cloud Composer, trykk CREATE og velg Composer 2

+

Følgende må spesifiseres

+
    +
  1. Name - navn på Cloud Composer instansen
    2. +
  2. Location - regionen hvor instansen settes opp (må velge Europa)
    3. +
  3. Trykk CREATE
    4. +
+
+

Når man setter opp Cloud Composer så opprettes det automatisk en bucket som er knyttet til Composer instansen. Før neste steg er det viktig å notere seg navnet på bucketen som blir opprettet. Det gjøres ved å gå til Cloud Storage i konsollen og finne bucketen som har goog-composer-environment labels.

+
+

Github repo for DAGS

+

I bucketen som opprettes når man setter opp Cloud Composer i Opprett ny composer instans blir det automatisk laget en katalog som heter dags. +Denne katalogen inneholder beskrivelsene av datapipelinene (DAGs) som man kan orkestrere med Cloud Composer og dette synkroniseres kontinuerlig med instansen.

+

Github synk mot Composer bucket

+

For å ha revisjonskontroll på disse pipelinebeskrivelsene lønner det seg å sette opp en synkronisering mot et Github repo.

+

Lag service account

+
    +
  1. Gå til Google IAM +og trykk på CREATE SERVICE ACCOUNT
    2. +
  2. Fyll in Service account name og en Service account description
    3. +
  3. Gi service accounten følgende rettigheter til bucketen opprettet i Opprett ny composer instans:
      +
    • Storage Legacy Bucket Writer
      • +
    • Storage Object Admin
      • +
    +
    4. +
+
+

Merk deg eposten som den nyopprettede service accounten får.

+
+

Last ned service account nøkkel

+
    +
  1. Gå til Google IAM
    2. +
  2. Trykk på service accounten opprettet i Lag service account
    3. +
  3. Trykk på KEYS
    4. +
  4. Trykk ADD KEY -> Create new key -> JSON
    5. +
  5. Ta vare på nøkkelen som blir lastet ned
    6. +
+

Lag et Github repo

+
    +
  1. Opprett github repo under navikt-organisasjonen (eller bruk et du har fra før)
    2. +
  2. Opprett følgende to secrets i Github repoet:
      +
    • Name satt til GCP_CREDENTIALS og Value til innholdet i JSON-nøkkelen lastet ned i Last ned service account nøkkel
      • +
    • Name satt til PROJECT_ID og Value til ID-en GCP team-prosjektet (finnes her)
      • +
    +
    3. +
+

Oppsett av Github repo

+
    +
  1. Lag en katalog med navn dags i repoet
    2. +
  2. Lag filen .github/workflows/sync-gcs-bucket.yaml med innhold som følger
    3. +
+
name: Sync DAG-bucket
+
+on:
+  push:
+    branches:
+      - main
+    paths:
+      - '.github/workflows/sync-gcs.yaml'
+      - 'dags/**'
+
+jobs:
+  sync-gcs-bucket:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v3
+    - uses: "google-github-actions/auth@v1"
+      with:
+        credentials_json: "${{ secrets.GCP_CREDENTIALS }}"
+    - name: "Set up Cloud SDK"
+    - uses: google-github-actions/setup-gcloud@v1
+    - name: "Specify GCP project"
+      run: "gcloud config set project {{ secrets.PROJECT_ID }}"
+    - name: "Sync DAGs to GCS bucket"
+      run: gsutil cp -r dags gs://BUCKET
+
+
+

Erstatt BUCKET i workflowen over med navnet på bucketen som ble opprettet i Opprett ny composer instans

+
+

Ved push til main branch vil denne workflowen laste opp innholdet i dags katalogen i repoet til GCS bucketen +som igjen blir synkronisert med Cloud Composer instansen.

+ + + + + + + + + + + + + + + + + + + + +
+
+ + + + + +
+ +
+ + + +
+
+
+
+ + + + + + + + + + + + \ No newline at end of file diff --git a/analyse/allowlisting/index.html b/analyse/allowlisting/index.html new file mode 100644 index 00000000..2f96b826 --- /dev/null +++ b/analyse/allowlisting/index.html @@ -0,0 +1,1381 @@ + + + + + + + + + + + + + + + + + + + + + + + + + Allowlist for Knada tjenester - NADA + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
+ +
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Allowlisting av trafikk

+ +

Vi krever at brukerne eksplisitt allowlister hoster de ønsker å snakke med fra tjenester i knada-clusteret.

+

Brukerne allowlister trafikk ved å angi enten DNS navn eller IP adresse, samt porten for den hosten de ønsker å åpne mot. +Dette blir så inkludert i en annotasjon på pod-ressursen til Jupyterhub/Airflow workeren i Knada-clusteret. +I Knada-clusteret kjører det en Kubernetes Admission webhook - knep - som oppretter Network Policies basert på hostene angitt i allowlist annotasjonen til Jupyterhub og Airflow pod ressurser.

+

Du angir hostene du har lyst til å allowliste på formatet <ip-adresse>:<port>. +Dersom port utelates vil vi bruke 443 som standardport.

+

Eksempler:

+
    +
  • 35.235.240.1:3307
    • +
  • oracle.db.no:1521
    • +
  • google.com
    • +
+

For å konfigurere allowlist for Jupyterhub se Trafikk fra notebooks. +For å konfigurere allowlist for Airflow se Trafikk ut fra Airflow.

+

Standardåpninger for Jupyterhub

+
    +
  • *.googleapis.com (for secret manager, google storage buckets, bigquery etc.)
    • +
  • github.com (for lesing av repo med kode)
    • +
  • pypi.org (installasjon av pakker)
    • +
  • files.pythonhosted.org (installasjon av pakker)
    • +
  • pypi.python.org (installasjon av pakker)
    • +
+

Standardåpninger for Airflow

+
    +
  • *.googleapis.com (for secret manager, google storage buckets, bigquery etc.)
    • +
  • github.com (for lesing av repo med kode)
    • +
+

Dersom man bruker dataverk-airflow vil det avhengig av hvilken operator og opsjoner man bruker også bli lagt på nødvendige åpninger. Se repo for dokumentasjon på hva som settes for ulike operatorer.

+

GCP cloudsql postgres

+

For å allowliste tilgang til en cloudsql postgres database på GCP kreves det åpning mot public IP adressen til databaseinstansen. +Public IP for database instansen finner du ved å gå til cloud console -> klikke på database instansen -> Public IP address

+

For cloudsql postgres databaser er det nødvendig å åpne for to porter (443 og 3307) for IPen til database instansen. +Du må dermed legge til to separate allowlist innslag for dette:

+
    +
  • <ip>:3307
    • +
  • <ip>:443
    • +
+ + + + + + + + + + + + + + + + + + + + +
+
+ + + + + +
+ +
+ + + +
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+ + + + + + + + + + + + \ No newline at end of file diff --git a/analyse/datafortelling-utkast.png b/analyse/datafortelling-utkast.png new file mode 100644 index 0000000000000000000000000000000000000000..c9bc105a304d06c7901e4c7cbca7b7014e5f0f13 GIT binary patch literal 62622 zcmeFZbySq!w+D;}s2~yw3aFrzw6rt`NQ2TfpmYz?9b%BuAdRFjFh~v!DqTYkF_h9n zNlU+n@BRJmz3aXg{P$h&x~w(uFwc47?6c3#&)z}Lm1PL=DehM zdSX-_;%5T0B`3=3r5x6|6=I~lXVf0(N)Q?T?#|W_R_As;A#kJw2^EK0R&dymRLh^wN&cWvshz4B-cKUao+onx@)vW=cv}%;5Mc z)};@YSUBM568KPp51@S1d#o$qFDdv)rDOm5>=pL(%l|&UYtntz5kS&KZ>R(eh&33V`~;bVWy{`jFNJ`D|xu!D)2psLife_am# z6M1OiZm__D+^iJDRimzA}P3JBd7ec=n+G{P~afGx0(+dHyE#7dpqg5elN?FSUUKPs+7cb?i(_kTT;Z$Hv)r$-_RII z-jXJ6xK*4Hs7{iFFMI9YQo8t6|0z)_mr~EFw*<2e@w41h!>_qZOSwze>yEa(lM^CB zo{^GbU#0QGy66|NxPLF!$L`+0jq~$k5}%Hu#=huYXHUY>_iHq5G`w_E9P1Je@kPI| zB2djJ(sw0mjB|Jg0q)y)7Vq|)@r=?#lTs=M*4=oygm-` z)k^UkKcwHazfjm77kkEcoHjG}l+FAktm;k8zzJLA=nvDy)w%3-=jMTvA9qxU9r|RK ze#yCAz3|QauhT#ORiDOf)7$USM_D^AQWdMAI51^HmXu>i9W8Sa!MWh#&mfjdUNcMW 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+ +
+ + + + + + +
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+ +
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+ + + +
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+ + + + + +
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+ + + +
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+ + + +
+
+
+ + + +
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+ + + + + + + +

Datafortellinger

+ +

Datafortellinger brukes til å dele innsikt i form av statiske dokumenter. +Datafortellinger kan kan enkelt deles med andre i NAV gjennom Datamarkedsplassen.

+

Installere Quarto

+

Lokal maskin

+

Følge installasjonsoppskriften på quarto.org/docs. +Husk å hold Quarto oppdatert.

+

KNADA VM

+

Vi anbefaler å følge guiden Tarball Installation On Linux. +Igjen må man selv huske å holde Quarto oppdatert.

+

Docker image

+

Vi anbefaler å bruke kommandoen nedenfor i din Dockerfile for å installere Quarto. +Denne vil hente ned siste versjon av Quarto hver gang Docker-imaget blir bygd.

+
# jq, wget, og tar må være installert for at kommandoen nedenfor skal fungere
+RUN cd /app && \
+    QUARTO_VERSION=$(curl https://api.github.com/repos/quarto-dev/quarto-cli/releases/latest | jq '.tag_name' | sed -e 's/[\"v]//g') && \
+    wget https://github.com/quarto-dev/quarto-cli/releases/download/v${QUARTO_VERSION}/quarto-${QUARTO_VERSION}-linux-amd64.tar.gz && \
+    tar -zxvf quarto-${QUARTO_VERSION}-linux-amd64.tar.gz && \
+    mv /app/quarto-${QUARTO_VERSION} /app/quarto
+ENV PATH="${PATH}:/app/quarto/bin"
+
+

Lage Quarto

+

Se Get Started på Quarto sine sider.

+

I eksemplene under må følgende byttes ut med reelle verdier:

+
    +
  • ${ENV}
      +
    • For knada VMer og jupyter notebooks/airflow i knada-clusteret settes dette til datamarkedsplassen.intern.dev.nav.no for dev og datamarkedsplassen.intern.nav.no for prod
      • +
    • Ellers settes det til data.ekstern.dev.nav.no for dev og data.nav.no for prod
      • +
    +
    • +
  • ${QUARTO_ID} - erstatt med ID på Quarto
    • +
  • ${TEAM_TOKEN} - erstatt med team-token fra Datamarkedsplassen
    • +
  • ${TEAM_ID} - erstatt med team ID for teamet ditt i teamkatalogen
    • +
+

Registrere Quarto i Datamarkedsplassen

+

Når man skal registrere en Quarto i Datamarkedsplassen kan man enten gjøre dette gjennom brukergrensesnittet eller programmatisk.

+

Registrer gjennom brukergrensesnitt

+
    +
  1. Gå til data.intern.nav.no for prod eller data.intern.dev.nav.no for dev.
    2. +
  2. Logg inn
    3. +
  3. Klikk hamburgermeny og velg Legg til ny datafortelling
    4. +
  4. Fyll inn metadata om Quarto fortellingen
    5. +
  5. Velg fil(er) du ønsker å laste opp
    6. +
  6. Trykk Lagre
    7. +
+
+

Dersom du kun ønsker å registere en tom datafortelling som siden skal oppdateres programmatisk kan man droppe steg (5) over

+
+

Registrer programmatisk

+

Du kan også programmatisk registrere en datafortelling.

+

Request body parametere:

+
    +
  • name (obligatrisk): Navn på quarto fortellingen
    • +
  • description: Beskrivelse av quarto fortellingen
    • +
  • teamID: ID i teamkatalogen for teamet som eier datafortellingen. Nødvendig å spesifisere dersom datafortellingen skal sorteres riktig i produktområdevisningen på data.intern.nav.no
    • +
  • id: Kan spesifiseres dersom du ønsker å spesifisere ID for quarto fortellingen selv. Dersom den utelates genereres det en ny.
    • +
+

Headers for requesten +- bearer token (obligatorisk): Team tokenet for teamet som skal eie datafortellingen

+
+

Merk: IDen for datafortellingen blir returnert når man gjør en POST til /quarto/create. Denne må så brukes når datafortellingen skal oppdateres etterpå.

+
+

Med curl

+
$ curl -X POST \
+    -d '{"name": "min quarto", "description": "min beskrivelse", "teamID": "<team-id>", "id": "${QUARTO_ID}"}' \
+    -H "Authorization: Bearer ${TEAM_TOKEN}" \
+    https://${ENV}/quarto/create
+
+

Med python

+
import requests
+
+res = requests.post(f"https://${ENV}/quarto/create", headers={"Authorization": "bearer ${TEAM_TOKEN}", json={
+    "name": "min quarto",
+    "description": "min beskrivelse",
+    "teamID": "<team-id>",
+    "id": "${QUARTO_ID}"
+}})
+
+quarto_id = res.json()["id"]
+
+

Oppdater eksisterende Quarto

+

For å oppdatere en eksisterende Quarto fortelling må man først generere ressursfilene på nytt med quarto render <file>.

+

Deretter må man hente ut ID for Quartoen man ønsker å oppdatere og team-tokenet fra Datamarkedsplassen.

+

Eksemplene tar utgangspunkt i at det er filen index.html som skal lastes opp og at man kjører kommandoene fra samme mappe som filen ligger.

+

Med curl

+
curl -X PUT -F index.html=@index.html \
+    "https://${ENV}/quarto/update/${QUARTO_ID}" \
+    -H "Authorization:Bearer ${TEAM_TOKEN}"
+
+
Flere filer
+
#!/bin/bash
+set -e
+
+FILES=""
+for file in <mappe med filene>/*
+do
+  FILES+=" -F $file=@$file"
+done
+
+curl -X PUT $FILES "https://${ENV}/quarto/update/${QUARTO_ID}" \
+    -H "Authorization:Bearer ${TEAM_TOKEN}"
+
+

Med python

+
import os
+import requests
+
+# A list of file paths to be uploaded
+files_to_upload = [
+    "PATH/index.html"
+    "PATH/SUB/FOLDER/some.html"
+]
+
+multipart_form_data = {}
+for file_path in files_to_upload:
+    file_name = os.path.basename(file_path)
+    with open(file_path, 'rb') as file:
+        # Read the file contents and store them in the dictionary
+        file_contents = file.read()
+        multipart_form_data[file_path] = (file_name, file_contents)
+
+# Send the request with all files in the dictionary
+response = requests.put( f"https://{ENV}/quarto/update/{QUARTO_ID}", 
+                        headers={"Authorization": f"Bearer {TEAM_TOKEN}"},
+                        files=multipart_form_data)
+    
+print(response.status_code)
+
+

Oppdatere Quarto med Naisjob

+

For å produksjonsette oppdatering av en Quarto Datafortelling med Naisjob er det noe konfigurasjon man må spesifisere i NAIS manifestet og Dockerfilen til jobben.

+
    +
  • quarto render resulterer i at det genereres noen filer som må lagres midlertidig i containermiljøet før publisering til Datamarkedsplassen. Man er derfor nødt til å legge til annotasjon i Naisjob manifestet for å tillate skriving til filsystemet i containeren +
    metadata:
+  annotations:
+    nais.io/read-only-file-system: "false"
+
    • +
  • All utgående trafikk fra Naisjobben vil by default stoppes, så man må legge til en outbound access policy til Markedsplass hosten man skal publisere til (dev/prod) +
    spec:
+  accessPolicy:
+    outbound:
+      external:
+        - host: data.ekstern.dev.nav.no # for dev
+        - host: data.nav.no # for prod
+
    • +
  • I Dockerfilen må man lage en bruker med userid 1069 å velge denne brukeren +
    RUN groupadd -g 1069 python && \
+    useradd -r -u 1069 -g python python
+
+USER python
+
    • +
+

Repoet navikt/nada-quarto har et fullstendig eksempel nødvendig oppsett, se spesielt

+ +

I eksempelet hentes team-tokenet fra en kubernetes secret i clusteret og settes som miljøvariabelen NADA_TOKEN.

+

Andre eksempler med Naisjob

+
    +
  • fia: Mer avansert eksempel med produksjonssatt datafortelling
    • +
+

Quarto book

+

Vi har en enkel rigg for å publisere Quarto fortelling internt i NAV på data.intern.nav.no og eksternt på data.nav.no. +Dette oppsettet forutsetter at man oppretter et Github repo med en Github Action som laster opp Quarto booken din til en GCP-bucket eid av deg. +Under følger en oppskrift på hvordan dette kan settes opp:

+
+

Oppskriften forutsetter at du har tilgang til navikt organisasjonen på Github og tilgang til et GCP prosjekt hvor storage bucketen skal opprettes. I tillegg kreves kunnskap om hvordan å dytte kode til et Github repo. GCP bruker og tilgang til navikt organisasjonen på Github får du gjennom myapps. GCP prosjekt blir opprettet dersom du lager et nais-team her.

+
+
    +
  1. Opprett et repo under navikt-organisasjonen på Github.
    2. +
  2. Opprett en storage bucket i et GCP prosjekt du er medlem av.
    3. +
  3. Lag Quarto fortellingen din: +
    4. +
  4. Opprett en service account i GCP prosjektet:
      +
    • For å opprette service account, se dokumentasjon i cloud.google.com.
      • +
    • Gi service accounten rollen Storage Admin på bucketen opprettet i (2). + Se dokumentasjon i cloud.google.com.
      • +
    +
    5. +
  5. Lag en JSON nøkkel for service accounten. + Denne lagrer du midlertidig lokalt på maskinen din.
    6. +
  6. Opprett en en Github Action secret i repoet ditt du kaller GCP_CREDENTIALS. + Innholdet i secreten er JSON nøkkelen fra (5). Etter at secreten er lagt til i repoet bør JSON-nøkkelen fjernes fra maskinen din.
    7. +
  7. Når du har laget datafortellingen din med Quarto og dyttet denne til repoet opprettet i (1) kan du sette opp en Github Action som laster fortellingen din til bucketen på GCP hver gang du pusher kode til repoet. + Opprett filen .github/workflows/update-quarto.yaml i repoet med følgende innhold:
    8. +
+
+

I eksempelet under må ${BUCKET} erstattes med navnet på bucketen du lagde i (2). ${NAME} må erstattes med et selvvalgt navn som representerer quarto storien.

+
+
name: update-quarto
+on: 
+  push:
+    branches:
+      - 'main'
+
+jobs:
+  update-quarto:
+    name: Update quarto story
+    runs-on: latest
+    steps:
+      - uses: actions/checkout@v4
+      - id: 'auth'
+        uses: 'google-github-actions/auth@v1'
+        with:
+          credentials_json: '${{ secrets.GCP_CREDENTIALS }}'
+      - name: 'Set up Cloud SDK'
+        uses: 'google-github-actions/setup-gcloud@v1'
+      - name: Upload files
+        working-directory: _site
+        run: gsutil cp -r * gs://${BUCKET}/${NAME}/
+
+
    +
  1. Lag en pull request til navikt/nada-quarto-proxy. + Pull requesten må inneholde følgende:
      +
    • Opprett filen .nais/${NAME}.yaml med innholdet nedenfor.
      • +
    • Legg til ,.nais/${NAME}.yaml på slutten av linjen på felles workflow.
      • +
    +
    2. +
+
+

Erstatt ${BUCKET} med navn på bucket fra (2) og ${NAME} med det du valgte i (7)

+
+
kind: "Application"
+apiVersion: "nais.io/v1alpha1"
+metadata:
+  name: quarto-${NAME}
+  namespace: nada
+  labels:
+    team: nada
+spec:
+  image: {{ image }}
+  env:
+    - name: GCS_QUARTO_BUCKET
+      value: ${BUCKET}
+    - name: QUARTO_UUID
+      value: ${NAME}
+    - name: QUARTO_PATH
+      value: ${NAME}
+  ingresses:
+    - https://data.intern.nav.no/${NAME}
+  replicas:
+    min: 1
+    max: 2
+
+
    +
  1. Man må også gi Nais-appen som blir opprettet i navikt/nada-quarto-proxy lesetilgang til den samme bucketen. + Etter at appen har blitt deployet må noen manuelt inn i clustert for å finne ut hvilken service account som har blitt opprettet. + Denne service accounten må da få rollen Storage Object Viewer på bucketen opprettet i (2).
    2. +
+

Datastory

+
+

Datafortellinger laget med datastory-biblioteket vil fases ut. Eksisterende datafortellinger vil leve videre en stund, og vi har stengt muligheten for å lage nye.

+
+

Installer datastory bibliotek

+
pip install datastory
+
+

API adresser

+

For å publisere en datafortelling må man angi api adressen det skal publiseres til.

+
    +
  • for dev-miljøet
      +
    • fra knada VMer samt jupyter notebooks/airflow i knada clusteret er adressen https://datamarkedsplassen.intern.dev.nav.no/api
      • +
    • ellers er adressen https://data.ekstern.dev.nav.no/api
      • +
    +
    • +
  • for prod-miljøet
      +
    • fra knada VMer samt jupyter notebooks/airflow i knada clusteret er adressen https://datamarkedsplassen.intern.nav.no/api
      • +
    • ellers er adressen https://data.nav.no/api
      • +
    +
    • +
+

I kodeeksemplene som følger brukes dev adressen.

+

Lage utkast til datafortelling

+
from datastory import DataStory
+
+ds = DataStory("Min datafortelling")
+
+ds.header("Overskrift")
+ds.markdown("Liten introbeskrivelse til datafortellingen")
+ds.header("Underoverskrift", level=2)
+ds.markdown("Mer fyldig beskrivelse av innholdet")
+ds.header("Figur 1 tittel", level=3)
+ds.plotly(fig_plotly.to_json())
+ds.markdown("Beskrivelse av figur 1")
+ds.header("Figur 2 tittel", level=3)
+ds.vega(fig_vega)
+ds.markdown("Beskrivelse av figur 2")
+
+ds.publish(url="https://data.ekstern.dev.nav.no/api")
+
+

Når man kaller ds.publish() i eksempelet over vil det bli opprettet en kladd til en datafortelling, se her +for å se hvordan man publiserer en datafortelling fra en kladd.

+

Publisere datafortelling

+

Publisering av en datafortelling gjøres fra kladd-visningen i Datamarkedsplassen som følger:

+
    +
  1. Logg inn
    2. +
  2. Trykk lagre +kladd
    3. +
  3. Velg hvilket av dine team som skal eie datafortellingen
    4. +
  4. Velg om du skal lage en ny eller overskrive en eksisterende datastory
    5. +
+

Programmatisk oppdatere eksisterende datafortelling

+

For å oppdatere en publisert datafortelling programmatisk må man autentisere seg med et token. +Dette tokenet blir generert når man publiserer en kladd og kan hentes ut ved å gå til den publiserte datafortellingen og fra kebab menyen velge vis token. +Når du har fått hentet ut oppdateringstokenet kan du erstatte siste kodelinje i eksempelet over (dvs. ds.publish()) med en metode som i stedet oppdaterer datafortellingen.

+
ds.update(token="mitt-token", url="https://datamarkedsplassen.intern.dev.nav.no/api")
+
+

Dersom man ønsker å unngå å sette api adressen til Datamarkedsplassen som input parameter til ds.publish() og ds.update() metodene kan man i stedet sette det som miljøvariabel, f.eks. +

import os
+os.environ["DATASTORY_URL"] = "https://datamarkedsplassen.intern.dev.nav.no/api"
+

+ + + + + + + + + + + + + + + + + + + + +
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+ + + + + +
+ +
+ + + +
+
+
+
+ + + + + + + + + + + + \ No newline at end of file diff --git a/analyse/eksempler/index.html b/analyse/eksempler/index.html new file mode 100644 index 00000000..081d5781 --- /dev/null +++ b/analyse/eksempler/index.html @@ -0,0 +1,1554 @@ + + + + + + + + + + + + + + + + + + + + + + + + + Kodeeksempler - NADA + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
+ +
+ + + + + + +
+ + +
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+ + + +
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+ + + + + +
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+
+ + + +
+
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+ + + +
+
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+ + + +
+
+ + + + + + + +

Kodeeksempler

+

Python

+

Cloud SQL IAM Database authentication

+

For å slippe å opprette og bruke builtin users i sql databaser på GCP bør man i stedet bruke Cloud SQL IAM database authentication når man skal koble seg til Cloud SQL databaser for analyse. Da vil man unngå å måtte lese inn passordet for brukeren fra hemmelighet i koden.

+

Eksemplene som følger forutsetter:

+
    +
  • +

    At følgende python biblioteker er installert: + 

    cloud-sql-python-connector
+pandas
+pg8000
+sqlalchemy
+

    +
    • +
  • +

    At den personlige brukeren eller IAM service accounten har rollene Cloud SQL Instance User og Cloud SQL Client i GCP prosjektet som eier database instansen du skal koble deg mot. Dette er prosjektnivå roller du gir gjennom IAM i GCP prosjektet.

    +
    • +
  • +

    At den personlige brukeren eller IAM service accounten er lagt til som en Cloud IAM bruker på database instansen. Se her for hvordan å legge til dette.

    +
    • +
  • +

    Enten manuelt eller med databasemigrasjon må man gi brukeren/service accounten tilgang til å lese fra tabellene i databasen.

    +
      +
    • For å gi tilgang til personlige brukere: + 
      GRANT SELECT ON ALL TABLES IN SCHEMA public to cloudsqliamuser;
+ALTER DEFAULT PRIVILEGES IN SCHEMA public GRANT SELECT ON TABLES TO cloudsqliamuser;
+
      • +
    • For å gi tilgang til IAM service accounter: + 
      GRANT SELECT ON ALL TABLES IN SCHEMA public to cloudsqliamserviceaccount;
+ALTER DEFAULT PRIVILEGES IN SCHEMA public GRANT SELECT ON TABLES TO cloudsqliamserviceaccount;
+
      • +
    +
    • +
+

Lese med personlig bruker

+

Hvis du ikke har gjort det i dag, kjør først kommandoen gcloud auth login --update-adc +

import os
+
+from google.cloud.sql.connector import Connector
+import pg8000
+import pandas as pd
+import sqlalchemy
+
+instance_connection_name = "prosjektID:region:instans" # Erstatt med database instansen du skal koble deg til
+db_iam_user = "epost@nav.no" # Erstatt med din nav epost
+db_name = "navn" # Erstatt med navn på databasen
+
+connector = Connector()
+
+def getconn() -> pg8000.dbapi.Connection:
+    conn: pg8000.dbapi.Connection = connector.connect(
+        instance_connection_name,
+        "pg8000",
+        user=db_iam_user,
+        db=db_name,
+        enable_iam_auth=True,
+    )
+    return conn
+
+engine = sqlalchemy.create_engine(
+    "postgresql+pg8000://",
+    creator=getconn)
+
+query = "SELECT * FROM table"
+df = pd.read_sql_query(query, engine)
+

+

Lese med service account

+

Dette eksempelet er ment for airflow tasks i KNADA og vil ikke fungere fra notebooks da disse ikke har en binding mot en IAM service account. For notebooks i KNADA, se Lese med personlig bruker.

+
import os
+
+from google.cloud.sql.connector import Connector
+import pg8000
+import pandas as pd
+import sqlalchemy
+
+instance_connection_name = "prosjektID:region:instans" # Erstatt med database instansen du skal koble deg til
+db_iam_user = "sa@prosjekt.iam" # Merk: Brukernavnet her skal settes til service account eposten uten .gserviceaccount.com. Altså er service account eposten din mitt-team@knada-gcp.iam.gserviceaccount.com så blir brukernavnet mitt-team@knada-gcp.iam
+db_name = "database" # Erstatt med databasenavn
+
+connector = Connector()
+
+def getconn() -> pg8000.dbapi.Connection:
+    conn: pg8000.dbapi.Connection = connector.connect(
+        instance_connection_name,
+        "pg8000",
+        user=db_iam_user,
+        db=db_name,
+        enable_iam_auth=True,
+    )
+    return conn
+
+engine = sqlalchemy.create_engine(
+    "postgresql+pg8000://",
+    creator=getconn)
+
+query = "SELECT * FROM table"
+df = pd.read_sql_query(query, engine)
+
+

R

+

Lese fra Google Cloud Storage bucket

+
    +
  1. Autentiser deg med gcloud auth login --update-adc
    2. +
  2. Installer følgende pakker +
    install.packages("googleCloudStorageR")
+install.packages("gargle")
+
    3. +
  3. Les fra bucket +
    library(googleCloudStorageR)
+library(gargle)
+
+scope <-c("https://www.googleapis.com/auth/cloud-platform")
+token <- token_fetch(scopes = scope)
+
+gcs_auth(token = token)
+
+gcs_global_bucket("my-bucket")
+obj <- gcs_get_object("file.txt")
+
    4. +
+ + + + + + + + + + + + + + + + + +
+
+ + + + + +
+ +
+ + + +
+
+
+
+ + + + + + + + + + + + \ No newline at end of file diff --git a/analyse/google-secret-manager/index.html b/analyse/google-secret-manager/index.html new file mode 100644 index 00000000..42474b1d --- /dev/null +++ b/analyse/google-secret-manager/index.html @@ -0,0 +1,1414 @@ + + + + + + + + + + + + + + + + + + + + + + + + + Google Secret Manager - NADA + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
+ +
+ + + + + + +
+ + +
+ +
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+
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+ + + + + +
+
+
+ + + +
+
+
+ + + +
+
+
+ + + +
+
+ + + + + + + +

Google Secret Manager

+

Google Secret Manager er en tjeneste som gir en sikker og praktisk metode for å lagre API-nøkler, passord, sertifikater og annen sensitiv data.

+

Secrets i NAIS team-prosjekt

+

Har du hemmeligheter i et eget NAIS team-prosjekt som du ønsker å bruke fra Airflow, så må du gi service accounten for KNADA (denne finner du i Knorten) tilgang til hemmeligheter i ditt team-prosjekt.

+

Secrets i KNADA

+

I og med at noen av brukerne i KNADA ikke er knyttet til et NAIS team-prosjekt, tilbyr KNADA Google Secret Manager enten for team eller enkeltpersoner.

+

Hvert team som blir opprettet i KNADA igjennom Knorten vil få opprettet sin team-hemmelighet i Google Secret Manager, denne er kun tilgjengelig fra Airflow. +Hver enkelt KNADA-bruker har også muligheten til å bestille sin egen personlige hemmelighet i Google Secret Manager. +Denne er tenkt brukt til å lagre hemmeligheter som kun du skal ha tilgang til.

+

Få tilgang

+

Det blir automatisk opprettet en hemmelighet for et team i Knorten, og alle medlemmer av teamet har tilgang. +Personlige hemmeligheter må man selv aktivt opprette, og dette gjør man under Personlige tjenester.

+

Legge til en ny hemmelighet

+

Det er en lenke fra Knorten til teamets og din personlige secret manager. +Dokumentasjon for bruk av Google Secret Manager finner man hos Google Cloud. +En viktig ting å merke seg er at man skiller mellom en secret og version. +For man har kun tilgang til en hemmelighet/secret igjennom Knorten, men denne kan ha forskjellige version. +Vi anbefaler uansett ikke at man har forskjellige hemmeligheter i forskjellige version, da dette fort kan bli uoversiktlig. +Det vi anbefaler er å legge alle hemmelighetene deres som en liste i en version. +Da kan man lett lese de inn i Python.

+

Lese hemmeligheter fra Google Secret Manager

+

For å lese hemmelighter fra Google Secret Manager må du installere Python-biblioteket google-cloud-secret-manager.

+
pip install --user google-cloud-secret-manager
+
+

Koden nedenfor henter alle hemmelighentene fra ditt område og legger de inn i en variabel som heter data.

+
import os
+from google.cloud import secretmanager
+
+secrets = secretmanager.SecretManagerServiceClient()
+resource_name = f"{os.environ['KNADA_TEAM_SECRET']}/versions/latest"
+secret = secrets.access_secret_version(name=resource_name)
+data = secret.payload.data.decode('UTF-8')
+
+ + + + + + + + + + + + + + + + + +
+
+ + + + + +
+ +
+ + + +
+
+
+
+ + + + + + + + + + + + \ No newline at end of file diff --git a/analyse/knada-vm/index.html b/analyse/knada-vm/index.html new file mode 100644 index 00000000..fae5aca1 --- /dev/null +++ b/analyse/knada-vm/index.html @@ -0,0 +1,1743 @@ + + + + + + + + + + + + + + + + + + + + + + + + + KNADA VM - NADA + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
+ +
+ + + + + + +
+ + +
+ +
+ + + + + + +
+
+ + + +
+
+
+ + + + + +
+
+
+ + + +
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+ + + +
+
+
+ + + +
+
+ + + + + + + +

KNADA VM

+

Vi tilbyr private virtuelle maskiner gjennom Knorten, disse kjører i GCP prosjektet knada-gcp. +Denne maskinen vil ha tilgang til on-premise kilder på lik linje som Notebooks og Airflow som kjører i KNADA.

+

Siden dette er en privat maskin stiller vi høyere krav til bruk av maskinene. +Blant annet er du selv ansvarlig for å holde maskinen oppdatert! +Dette betyr at du må sette deg inn i hvordan man vedlikeholder en Debian GNU/Linux maskin.

+

Det samme gjelder for pakker og applikasjoner du installerer. +Du må selv aktivt holde disse oppdatert!

+

Hvis du syns dette blir for mye ansvar så anbefaler vi heller Jupyter notebooks.

+

Som med Jupyter notebook har man muligheter til å laste ned data til lokal maskin, derfor må man være ekstra obs på at man ikke gjør noe utenfor det behandlingsgrunnlaget man har.

+

Man bør være bevist på hva man skriver inn i terminalen (det man skriver ut i terminalen forsvinner så fort man avslutter shellet). +For eksempel bør man ikke skrive brukernavn og passord direkte i terminalen, men heller bruke konfigurasjons-filer. Enda bedre er det å hente hemmeligheter fra Google Secret Manager. +Det kan også være fornuftig å konfigurere shellet til å slette historikken når man logger ut. +Hvis man bruker bash kan man legge til history -c i .bash_logout.

+

Vedlikehold

+

For Debian (selve maskinen/OSet) så kan man lese Keeping your Debian system up-to-date, men i korte trekk handler det om å kjøre aptitude update etterfulgt av aptitude full-upgrade. +Dette vil holde OSet oppdatert, og oppdatere pakker installert via aptitude (aka apt install).

+

For Python bør man regelmessig kjøre pip list --outdated for å se hva slags pakker man trenger å oppgradere. +Enda bedre er å ha en requirements.txt (eller tilsvarende for Poetry eller lignende verktøy) sjekket inn i Github, og la Dependabot gjøre jobben. +Husk også å holde følge med på nye Python-versjoner! +Det finnes en god oversikt hos Python developers guide. +Per dags dato bør ingen være på noe lavere enn 3.8, og man bør jobbe med å komme seg vekk fra 3.8 da den har EOL (end of life) oktober 2024.

+

Koble til VM med SSH

+

For å koble deg til en VM i knada-gcp trenger du å opprette et SSH nøkkelpar og hente ut noe informasjon om instansen som må fylles inn i SSH-configen lokalt (~/.ssh).

+
    +
  1. Logg inn med gcloud auth login (trengs kun å kjøres en gang om dagen). +For å gjøre dette må gcloud være installer (se dokumentasjon hos cloud.google.com).
    2. +
  2. Kjør kommandoen gcloud compute ssh --project knada-gcp --zone europe-north1-b <instance>. +Erstatt <instance> med navnet på VM instansen din, denne finner du etter du har logget inn i Knorten under Compute. +Denne kommandoen vil også generere SSH-nøkler.
    3. +
  3. Lukk terminalen fra (2) og kjør så kommandoen gcloud compute ssh --project knada-gcp --zone europe-north1-b <instance> --dry-run lokalt på maskinen din. +Erstatt <instance> med navnet på VM instansen din slik som i punkt (2).
    4. +
  4. Outputen fra kommandoen i (3) inneholder en del ting du trenger fylle inn i SSH-configen din. +Under er et eksempel på hvordan en slik SSH-config skal se ut.
    5. +
+
+
+
+
Host knada-vm
+    HostName {HOSTNAME}
+    IdentityFile ~/.ssh/google_compute_engine
+    CheckHostIP no
+    HostKeyAlias {HOSTNAME}
+    IdentitiesOnly yes
+    UserKnownHostsFile ~/.ssh/google_compute_known_hosts
+    ProxyCommand {PROXYCOMMAND}
+    ProxyUseFdpass no
+    User {USERNAME}
+
+

Erstatt {HOSTNAME}, {PROXYCOMMAND} og {USERNAME} med verdiene du får ut av dry-run kommandoen over og lagre filen under ~/.ssh/config. +Merk: {USERNAME} skal kun være det før @ i output fra kommandoen over, {HOSTNAME} er det som begynner med compute. og {PROXYCOMMAND} er alt etter ProxyCommand til og med --verbosity=warning.

+
+
+
Host knada-vm
+    HostName {HOSTNAME}
+    IdentityFile C:\\Users\\{USERNAME}\\.ssh\\google_compute_engine
+    CheckHostIP no
+    HostKeyAlias {HOSTNAME}
+    IdentitiesOnly yes
+    UserKnownHostsFile C:\\Users\\{USERNAME}\\.ssh\\google_compute_known_hosts
+    ProxyCommand "C:\\Users\\{USERNAME}\\AppData\\Local\\Google\\Cloud SDK\\google-cloud-sdk\\bin\\..\\platform\\bundledpython\\python.exe" "-S" "C:\\Users\\{USERNAME}\\AppData\\Local\\Google\\Cloud SDK\\google-cloud-sdk\\lib\\gcloud.py" compute start-iap-tunnel {INSTANS} %p --listen-on-stdin --project=knada-gcp --zone=europe-north1-b --verbosity=warning
+    ProxyUseFdpass no
+    User {USERNAME}
+
+

Erstatt {HOSTNAME}, {PROXYCOMMAND} og {USERNAME} med verdiene du får ut av dry-run kommandoen over og lagre filen under ~/.ssh/config. +Merk: {USERNAME} skal kun være det før @ i output fra kommandoen over, {HOSTNAME} er det som begynner med compute. og {INSTANS} som du finner i Knorten under Compute.

+
+
+
+

Fra VS Code

+
    +
  1. Installer extension Remote - SSH i VS Code.
    2. +
  2. I VS Code trykk cmnd+shift+P (mac) eller cntrl+shift+P (windows) og skriv inn og velg Remote - SSH: Connect to host... og velg så hosten knada-vm.
    3. +
+

Fra IntelliJ/Pycharm

+
    +
  1. I oppstartsvinduet velg SSH under Remote Development
    2. +
  2. Klikk New Connection
    3. +
  3. Åpne SSH Configurations ved å trykke på tannhjulet til høyre for Connection feltet
    4. +
  4. I SSH Configurations vinduet trykk + for å legge til en ny konfigurasjon.
    5. +
  5. Spesifiser så følgende og klikk OK
      +
    • Host settes til knada-vm
      • +
    • User name settes til brukernavnet på maskinen din lokalt
      • +
    • Authentication type settes til OpenSSH config and authentication agent
      • +
    +
    6. +
  6. Trykk på Check Connection and Continue (dette tar fort litt tid første gangen)
    7. +
  7. Når vinduet Choose IDE and Project dukker opp sett Project directory. +Dette skal settes til ditt hjemmeområde på serveren /home/<brukernavn>, trykk på browse ikonet til høyre for boksen for å lete det opp
    8. +
  8. Klikk så Download and Start IDE
    9. +
+

SSH multiplexing aka gjenbruk av koblinger

+

For å optimalisere tilkobling mot VMen kan man bruke SSH multiplexing. +Dette er kjekt mot KNADA VM for da man slipper å autentisere seg for hver tilkobling. +Med bruk av ControlPersists kan man si hvor lenge forbindelsen skal leve etter at man kobler fra siste gang. +Så hvis du SSH-er inn, skrur av tilkoblingen så vil du kunne starte VSCode innen 5 minutter og den vil kunne gjennbruke samme tilkobling. +Hvis man ikke ønsker at alle SSH tilkoblinger skal bruke multiplexing kan du bruke legge linjene (minus Host *) under Host knada-vm.

+
Host *
+  ControlMaster auto
+  ControlPersist 5m
+
+

Se SSH sin egen dokumentasjon for mer informasjon om de forskjellige variablene.

+

Oppsett av VM

+

Python

+

Den virtuelle maskinen kommer med python 3.9 installert, men mangler installasjon av pip. +Installasjon av pip på VMen kan gjøres med

+
sudo apt install python3-pip
+
+

R

+

R kan installeres som følger

+
sudo apt update -y && sudo apt install -y r-base
+
+

Nyttige R biblioteker for interaksjon med google APIer

+
    +
  • gargle: Bibliotek for enklere håndtering av autentisering mot google APIer
    • +
  • googleCloudStorageR: Bibliotek for å lese/skrive filer til Google Cloud Storage. +Se eksempel
    • +
  • bigrquery: Bibliotek for å lese skrive data til BigQuery
    • +
+

Alle disse kan lastes ned og installeres av deg.

+

Installasjon av databasedrivere

+

For å bruke python biblioteker til å lese fra postgres og oracle kreves det at drivere for det er installert på den virtuelle maskinen. +For å gjøre det enkelt for dere å komme i gang har vi lagd to scripts som begge må kjøres med root privilegier.

+

Kjør derfor først kommandoen:

+
sudo -i
+
+

Postgres

+

Trenger du Postgres, lim inn følgende i terminalen din:

+
apt-get update && apt-get install -yq --no-install-recommends libpq-dev
+
+

Oracle

+
    +
  1. Lag en tom fil og kall den setup_nb.sh
    2. +
  2. Lim inn følgene kodesnutt:
    3. +
+

apt-get update && apt-get install -yq --no-install-recommends \
+    build-essential \
+    curl \
+    alien \
+    libaio1 \
+    libaio-dev && \
+    apt-get clean && \
+    rm -rf /var/lib/apt/lists/*
+
+curl https://download.oracle.com/otn_software/linux/instantclient/219000/oracle-instantclient-basic-21.9.0.0.0-1.x86_64.rpm > /tmp/oracle-instantclient-basic-21.9.0.0.0-1.x86_64.rpm
+
+alien -i /tmp/oracle-instantclient-basic-21.9.0.0.0-1.x86_64.rpm && \
+    rm -rf /var/cache/yum && \
+    rm -f /tmp/oracle-instantclient-basic-21.9.0.0.0-1.x86_64.rpm && \
+    echo "/usr/lib/oracle/21.9/client64/lib" > /etc/ld.so.conf.d/oracle-instantclient21.9.conf && \
+    /usr/sbin/ldconfig
+
+PATH=$PATH:/usr/lib/oracle/21.9/client64/bin
+
+3. Gjør scriptet/kodesnutten kjørbar: +
chmod +x setup_nb.sh
+sudo ./setup_nb.sh
+

+
+

Nå vil skriptet installere versjon 21.9 av oracle klienten. Dersom du i stedet ønsker en annen versjon kan editere skriptet over med den versjonen du ønsker. Du finner en liste over tilgjengelige versjoner av oracle klienten her.

+
+

Lese fra TDV

+

Hvis du skal lese TDV data fra VM i knada-gcp må du selv installere drivere og biblioteker som er nødvendig. +Dette kan gjøres som følger:

+
    +
  1. Last opp TDV driveren til VMen: Denne finner du via utviklerimage på stien F:\DVH\TIBCO\drivers\TIB_tdv_drivers_x.x.x_all\apps\odbc\linux64 (erstatt x med ønsket versjon)
    2. +
  2. Installer unixodbc-dev: sudo apt-get install unixodbc-dev
    3. +
  3. Installer python biblioteket pyodbc: pip install pyodbc
    4. +
  4. Følg eksempelet i dataseksjonens guide for å lese fra TDV.
    5. +
+ + + + + + + + + + + + + + + + + +
+
+ + + + + +
+ +
+ + + +
+
+
+
+ + + + + + + + + + + + \ No newline at end of file diff --git a/analyse/kom-i-gang/index.html b/analyse/kom-i-gang/index.html new file mode 100644 index 00000000..f4fa7fe0 --- /dev/null +++ b/analyse/kom-i-gang/index.html @@ -0,0 +1,1351 @@ + + + + + + + + + + + + + + + + + + + + + + + + + Kom i gang - NADA + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
+ +
+ + + + + + +
+ + +
+ +
+ + + + + + +
+
+ + + +
+
+
+ + + + + +
+
+
+ + + +
+
+
+ + + +
+
+
+ + + +
+
+ + + + + + + +

Kom i gang

+ +

For å komme i gang med analysering tilbyr NADA dokumentasjon på hvordan man kan ta i bruk Jupyter Notebooks og Airflow i teamprosjektene på GCP, se managed Jupyter notebook og managed Airflow for mer informasjon.

+

Dersom man har behov for å nå onprem kilder tilbyr vi også analyseverktøy for dette i KNADA.

+

KNADA

+

KNADA er NADA sin analyseplattform kjørende i GCP med kobling til datakilder i onprem. +Man må ha Naisdevice for å nå tjenester i Knada. +Tilgang til Jupyter Notebooks og Airflow i KNADA bestilles i Knorten.

+

Gjennom Knorten oppretter man et team for en eller flere personer. +Man kan så installere Jupyter notebook eller Airflow. +Teamadministreringen skjer igjennom Knorten.

+

Tilgang utenfor Utvikling og data

+

Hvis du eller noen i teamet ditt ikke tilhører Utvikling og data (U&D) må de manuelt bli lagt til Azure AD-gruppen knada-gw-access. +Dette er en gruppe alle kan bli medlem av, og vi ønsker bare å ha en god oversikt over hvem som ikke tilhører U&D. +Ta kontakt i Slack#nada for bistand.

+ + + + + + + + + + + + + + + + + + + + +
+
+ + + + + +
+ +
+ + + +
+
+
+
+ + + + + + + + + + + + \ No newline at end of file diff --git a/analyse/metabase/index.html b/analyse/metabase/index.html new file mode 100644 index 00000000..014ead60 --- /dev/null +++ b/analyse/metabase/index.html @@ -0,0 +1,1479 @@ + + + + + + + + + + + + + + + + + + + + + + + + + Metabase - NADA + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
+ +
+ + + + + + +
+ + +
+ +
+ + + + + + +
+
+ + + +
+
+
+ + + + + +
+
+
+ + + +
+
+
+ + + +
+
+
+ + + +
+
+ + + + + + + +

Metabase

+ +

Metabase er en opensource plattform for moderne datautforskning og visualisering.

+

Kom igang

+

Metabase for interne data i NAV er tilgjengelig på metabase.intern.nav.no. +Innloggingen gjøres med SSO.

+

Hvordan fungerer tilgangsstyring i metabase?

+

Datasett er ved registrering kun tilgjengelig for teamet som eier data. +Dersom teamet legger til datasettet i Metabase (Legg til i metabase på Datamarkedsplassen), vil det være tilgjengelig for de samme som har tilgang til datasettet på Datamarkedsplassen. +Når datasettet legges til i metabase, vil det opprettes en database (I i figuren under) og en collection (II i figuren under) i metabase. +Begge deler er tilgangsbegrenset. +Tilgangsstyringen gjelder både for å lese Dashboard og for å lage dem.

+
flowchart BT
+subgraph Dataprodukt
+subgraph Datasett 1
+A{Tilganger}
+B[(BigQuery-tabell)]
+end
+end
+
+subgraph Metabase
+subgraph II: Tilgangsstyrt collection
+C[Dashboard]
+D[Questions]
+end
+E[(I: Database)]
+F{Metabase-tilganger}
+end
+
+subgraph Annen collection
+G[Questions]
+H[Dashboard]
+
+end
+
+A --Tilganger til Metabase er <br> er de samme som i BigQuery--> F
+B --> E
+F --> D
+D --> C
+G --Personer med tilgang til <br> collectionen har tilgang til <br> *resultatet* fra questionen <br> om den ligger i samme collection. <br> De kan ikke endre questionen <br> eller se data i underliggende tabell--> H
+E --> F
+F --Kan kun bruke data <br> andre steder om personen <br> har tilgang--> G
+

Datasett som er åpne for alle i NAV (all-users@nav.no) synkroniseres automatisk til metabase og åpnes for alle brukere.

+

Tilgangsbegrensede elementer i åpent tilgjengelige dashboards vil fortsatt være tilgangsbegrenset. +Det betyr at om du inkluderer data som kun er tilgjengelig for ditt team inn i et åpent dashboards, vil folk utenfor teamet få beskjed om at de ikke har tilgang til akkurat det dataene.

+

Hvor skal spørsmål og dashboards lagres?

+

Tilgangen knyttet til mappen elementene er lagret i bestemmer hvem som kan se dem. Metabase har to toppnivå:

+
    +
  • Personal collections: Her kan du lagre alt som ikke skal være synlig for andre enn deg selv.
    • +
  • Our analytics: Alt som skal være synlig for andre lagres her. Helst i mapper relatert til det aktuelle dataproduktet.
    • +
+

Det er mulig å flytte elementer mellom mapper etter behov, men husk at det er tilgangen til mappen som bestemmer hvem som kan se spørsmål og dashboard.

+

Administere datamodell

+

Når et datasett legges til i metabase vil appen gi hvert felt en semantisk type som den tror passer. Hvis metabase gjetter feil kan det føre til problemer som at du ikke kan summere tall, filtrere på en kategori eller bruke tidsfunksjoner. Dette kan endres i adminmenyen:

+
    +
  1. Trykk på tannhjulet oppe til høyre og gå inn i Admin settings. Her finner du alle datasett du har tilgang til via Datamarkedsplassen.
    2. +
  2. Velg tabellen du ønsker å administrere.
    3. +
  3. Her kan du for hvert felt gjøre endringer som å velge semantisk type og filtertype utifra hva du selv ønsker. Merk at disse endringene vil gjelde for alle som bruker dette datasettet til å lage spørsmål.
    4. +
+

Er du usikker på hvilken type som passer kan du prøve deg fram eller velge en av disse:

+
    +
  • Kategori: Entity name eller Category
    • +
  • Tid: Creation timestamp eller Creation date
    • +
  • Tall: Quantity
    • +
+

Synkronisering av skjemaendringer

+

Dersom du gjør endringer på skjemaet til en tabell i BigQuery vil det ta inntil en time før metabase oppdager endringen av seg selv. Du kan trigge denne synken selv via adminmenyen:

+
    +
  1. Trykk på tannhjulet oppe til høyre og gå inn i Admin settings. Her finner du alle datasett du har tilgang til via Datamarkedsplassen.
    2. +
  2. Velg tabellen du ønsker å synkronisere og trykk på det nye tannhjulet som dukker opp i høyre hjørne.
    3. +
  3. Trykk på Re-scan this table.
    4. +
  4. Det kan være nødvendig å åpne nettleser på nytt for at den skal få med seg endringen.
    5. +
+

FAQ

+

Q: Jeg har nettopp lagt til en ny kolonne i BigQuery-tabellen min. Hvorfor dukker den ikke opp i metabase?
+A: Metabase kjører en synk hver time for å sjekke om skjemaet har endret seg. Det vil derfor ta litt tid før det dukker opp i metabase automatisk. Dersom du trenger det i metabase med en gang, følg oppskriften for synkronisering av skjemaendringer over.

+

Q: Filter-verdier i metabase er ikke oppdatert?
+A: Metabase kjører en daglig sync mot hele tabellen i BigQuery for å finne ut av hvilke verdier som finnes. Dette brukes bl.a. til å generere options i filter. Disse vil også oppdateres med Re-scan this table som forklart over.

+

Q: Hvorfor får jeg ikke joinet datasett som er åpent tilgjengelig?
+A: Du kan det! Men du må gjøre det med SQL query. Et alternativ er å joine tabeller i BigQuery, lage et nytt datasett og legge dette til i Metabase.

+

Q: Kan jeg koble sammen datasett som er tilgangsbegrenset?
+A: Slik Metabase er satt opp, er det en unik service-bruker per tilgangsbegrensede datasett. +Det er mulig å gjøre dette i metabase ved å be datasetteier om å gi tilgang til service-account, men vi anbefaler å lage et view i BigQuery.

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Generelle råd

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Sette opp nbstripout i notebook

+
+

nbstripout er et verktøyet som sørger for at output celler i Jupyter notebooks utelates fra Git commits.

+
+

For å unngå at output celler fra Jupyter notebooks blir pushet sammen med kode til Github anbefaler vi å installere nbstripout for repoet ditt. +Dette verktøyet må installeres alle stedet du har repoet sjekket ut.

+

For å installere, gjør som følger:

+
    +
  • pip install nbstripout --user
    • +
  • Kjør kommandoen nbstripout --install --global fra repoet ditt lokalt
    • +
+

Autentisering

+

Vi anbefaler alle å lære seg å bruke sin personlige bruker fra Jupyter notebooks, dette for å sikre seg at man bruker kun de tilgangene man selv skal ha.

+

Personlig bruker

+
    +
  1. I notebooken, åpne en terminal
    2. +
  2. Kjør kommandoen gcloud auth login --update-adc
    3. +
  3. Gå til lenken som vises i terminalen og logg inn med NAV-bruker
    4. +
  4. Etter at du har logget inn kopierer du verifikasjonskoden du får inn i terminalen
    5. +
+

Etter å ha utført stegene over vil du i din notebook kunne jobbe med dine private Google credentials mot kilder. +Denne tilgangen er kun midlertidig, og man må gjøre dette hver dag.

+

Service account

+
+

Dette gjelder kun for managed notebooks. Bruker du KNADA notebook, se autentisering med personlig bruker.

+
+

En fersk managed notebook vil automatisk autentisere seg mot GCP-tjenester med service accountens credentials. +Det betyr at man er tilkoblet GCP med en service accounten ut av boksen når man starter opp en notebook. +Bruker du denne service accounten, så er det denne brukeren som må få tilgang til kildene du skal snakke med. +Hvis du på et tidspunkt har logget på GCP med din personlige bruker fra notebooken må du bytte tilbake til service accounten.

+

Det gjør du slik:

+
    +
  1. Sjekk hvilken bruker som er aktiv med gcloud auth list.
    2. +
  2. Hvis det er din personlige, velg service accounten ved å kjøre gcloud config set account <eposten til service accounten din>.
    3. +
  3. Fjern tilgangen til din personlige bruker ved å kjøre gcloud auth application-default revoke --account <din personlige nav-epost>.
    4. +
+

Tilpasse Oracle connector for raskere spørringer

+

Ved å justere arraysize og prefetchrows kan spørringer mot databaser onprem forbedres markant! +Se dokumentasjonen til oracledb-biblioteket for mer informasjon.

+

Jupyter extensions

+

Du kan installere extensions til Jupyter selv på samme måte som du installere Python pakker. +Etter man har installert en extension må du stoppe notebooken og starte den på nytt.

+

Eksempel for Git-extension i KNADA:

+
pip install --upgrade jupyterlab jupyterlab-git --user
+
+

Bruk av Github Advanced Security og Dependabot for notebook servere

+
+

Dependabot støtter per i dag kun språkene Ruby, JavaScript, Python, PHP, Dart, Elixir, Elm, Go, Rust, Java og .NET så hvis man bruker R kan man ikke benytte seg av det følgende

+
+

Vi oppfordrer notebook brukere til å ha en requirements.txt fil med python bibliotekene som de selv installerer på notebook serveren i et github repo i navikt orgen på github. Alle repoer i navikt har automatisk aktivert Github Advanced Security inkludert Dependabot. Gjøres dette vil man få varsler om sårbarheter i bibliotekene som er i bruk samt at det automatisk blir generert pull requests i repoet med versjon av biblioteket hvor sårbarheten er fikset.

+

Dersom man bygger egne Dockerimages for Notebooks eller Airflow tilbyr Dependabot også automatisk scanning etter sårbarheter i disse.

+

En kan også aktivere CodeQL for repoet som analyserer koden din og genererer alerts ved sårbarheter. Se her for informasjon om oppsett av CodeQL.

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Hva er Jupyter notebooks?

+

En Jupyter notebook er analytikerens fremste redskap for å utforske og analysere data. +Plattformen støtter innlesing av dataprodukter registrert på Datamarkedsplassen og andre kilder, eksempelvis datavarehus (via KNADA).

+

Jupyter notebooks er et godt verktøy for å utforske og finne innsikt i data. +Deling av innsikt med andre kan enkelt gjøres med en datafortelling.

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KNADA notebooks

+ +

KNADA notebooks bestilles gjennom Knorten. +Disse notebookene kjører i et managed Kubernetes cluster i GCP som driftes av NADA.

+

Installasjon av Python-pakker

+

For KNADA notebooks vil det kun være de Python-pakkene som blir lagret under user-stien som blir persistert når Notebook-en slås av. +Derfor er det nødvendig å bruke --user flagget når du installere Python-pakker.

+
pip install google-cloud-bigquery --user
+
+

Glemmer du å bruke --user, så blir pakkene installert globalt, og de vil forsvinne når notebook-en din blir skrudd av. +Har du behov for å ha globalt installerte pakker anbefaler vi at du bruker ditt eget Jupyter notebook image.

+

Automatisk avslåing av notebook

+

For å spare ressurser vil en Jupyter notebook automatisk blir skrudd av etter en times inaktivitet. +Har man behov for lengre levetid kan man spesifisere dette gjennom Knorten i feltet Cull Timeout.

+

Python-miljø

+

Når man logger inn i Jupyter så får man mulighet til å velge hvilket Python miljø man ønsker i sin notebook. +Vi følger Python Release Cycle for imagene våre, det betyr at vi lager et image per Python-versjon som ikke har statusen end-of-life, og som også er støttet av Jupyter (se Docker Hub). +Samtlige av image-ene man kan velge mellom kommer med drivere for oracle, postgres og TDV installert.

+

Eget image for Jupyter notebook

+

Har du behov for noe mer enn det vi tilbyr ut av boksen kan du lage ditt eget Jupyter notebook image. +Ta gjerne utgangspunkt i vårt image med den Python-versjonen du ønsker. Gjør du det får du drivere for oracle, postgres og TDV, samt de vanligste kommandolinjeverktøyene som er hendige å ha i en notebook allerede installert.

+

Når du har laget et image kan du selv spesifisere at det er dette imaget som skal brukes for teamet ditt i Knorten.

+

NB: Hvis du bygger image lokalt på en nyere Mac så er det viktig at du bygger imaget for riktig plattform. +Legg til --platform linux/amd64 i docker build kommandoen.

+

Eksempel på Dockerfile

+

La oss si at du har en requirements.txt fil med Python-pakker som under:

+
backoff==2.0.1
+oracledb>=1.4.2
+datastory>=0.1.12
+google-cloud-bigquery>3.0.0
+google-cloud-storage==2.4.0
+great-expectations==0.15.34
+influxdb==5.3.1
+
+

Da kan du med følgende Dockerfile installere disse pakkene når du bygger ditt image:

+
FROM ghcr.io/navikt/knada-images/jupyter:2023-06-16-738148c-3.10
+
+USER root
+
+COPY requirements.txt requirements.txt
+RUN pip install -r requirements.txt
+
+USER $NB_USER
+
+

Lagring av image

+

Du kan selv velge om du ønsker å lagre imaget ditt i GAR eller i GHCR. I dette repoet er det eksempler på hvordan å bygge et docker image og pushe til begge to docker repositories. Begge pipelinene bygger image med samme Dockerfile og requirements.txt.

+

Når du så har bygget image ditt finner du det igjen ved å:

+
    +
  • For GAR - Gå til nais management og let opp teamet ditt.
    • +
  • For GHCR - Gå til packages og søk på repo navnet ditt.
    • +
+

Lese hemmeligheter fra Google Secret Manager

+

Du kan lese mer om hemmeligheter under Google Secret Manager.

+

Restarte server

+

For manuelt å restarte en Jupyter notebook går man til kontrollpanelet ved å velge File -> Hub Control Panel -> Stop My Server. Etter at serveren er stoppet vil man så kunne trykke Start My Server.

+
+

Dersom jupyterhubben din har fryst seg og du ikke har mulighet til å gjøre det over kan du gå direkte til kontroll panelet hvis du går til stien /hub/home i nettleseren

+
+

Trafikk fra notebooks

+

Man må eksplisitt oppgi hvilke hoster man ønsker å snakke med fra notebooks i KNADA. Dette spesifiserer du gjennom knorten.

+

Tilsvarende som for airflow legger du inn hostnavn og port på formatet hostnavn:port. Dersom man ikke angir port vil vi bruke 443 som standardport. +Vi har en controller kjørende i KNADA som vil lage en NetworkPolicy som tillater trafikk ut fra notebooken mot de hostene som legges til. +Når notebooken din slås av vil tilgangene bli fjernet.

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Google managed notebooks

+ +
+

Vertex AI Workbench is a Jupyter notebook-based development environment for the entire data science workflow. +You can interact with Vertex AI and other Google Cloud services from within a Vertex AI Workbench instance's Jupyter notebook.

+
+

Du finner den offisielle dokumentasjonen for managed notebooks hos cloud.google.com.

+

Nedenfor har vi et forslag til innstillinger som passer for de fleste brukere.

+

Det er mange ulike konfigurasjonsmuligheter for notebooks og man står fritt til å sette de opp med de innstillingene man selv ønsker, men merk særlig det som presiseres under maskintype og GPU.

+

Det er også kostnadsbesparende å skru av notebooken på slutten av arbeidsdagen med mindre man trenger å ha noe kjørende utenfor arbeidstid.

+
+
+
+
+

Team-prosjekt

+

Dette vil være en notebook server som settes opp i GCP prosjektet til teamet ditt. +Man kan til enhver tid se hvilke prosjekter man er medlem av ved å gå til GCP Billing.

+
+
    +
  1. Velg riktig prosjekt for teamet ditt i GCP Cloud console. Dette velger du i nedtrekksmenyen øverst til venstre.
    2. +
  2. Gå så til Vertex-AI/Workbench
    3. +
  3. Velg New Notebook og velg Customize
    4. +
  4. Under Properties, spesifiser følgende:
      +
    • Notebook name - Navn på kladdeboka
      • +
    • Velg region og zone i Europe
      • +
    +
    5. +
  5. Under Environment spesifiser følgende
      +
    • Environment - med mindre man har spesielle behov kan man her velge et av Python-miljøene
      • +
    +
    6. +
  6. Under Permission and security
      +
    • Under Access to JupyterLab velg
        +
      • Single user only hvis det kun er du som skal ha tilgang til notebooken
        • +
      • Service account hvis alle i teamet skal ha tilgang
        • +
      +
      • +
    +
    7. +
  7. Trykk Create nederst
    8. +
  8. Når maskinen er ferdig laget, kan du finne og trykke på Open Jupyterlab for din notebook fra Workbench for å få tilgang.
    9. +
+
+
+
+

Maskintype og GPU

+

Det er du som vet best hva du trenger, derfor er det ingen begrensninger på hva du kan velge av maskin og GPU. +Bare husk at det kan bli veldig kostbart hvis du lar en maskin (med mye minne og GPU) stå uten at den blir brukt.

+

Merk også at notebooks som kjører i regionen north/Finland ikke har tilgang til GPU.

+

Stoppe en maskin

+

Vi anbefaler alle å stoppe maskinene utenom arbeidstid og når de ikke er i bruk. +Stopping er ikke det samme som sletting, så alt er der når du starter den opp igjen.

+

Velg maskinen i Vertex AI i oversikten og trykk STOP i toppen.

+

Slette en maskin

+

Har du en maskin du ikke trenger lenger, så kan du slette den.

+

Velg maskinen i Vertex AI i oversikten og trykk DELETE i toppen.

+

Installasjon av databasedrivere

+

For å bruke python biblioteker til å lese fra postgres og oracle kreves det at drivere for det er installert på notebook serveren. Dersom man bruker en Knada Notebook så kommer det miljøet man jobber i der allerede med disse driverne installert. Men dersom man jobber i en GCP Managed Notebook må man manuelt installere disse driverne.

+

For å gjøre det enkelt for dere å komme i gang har vi lagd to scripts som begge må kjøres med root privilegier.

+

Kjør derfor først kommandoen: +

sudo -i
+

+

Postgres

+

Trenger du Postgres, lim inn følgende i terminalen din: +

apt-get update && apt-get install -yq --no-install-recommends libpq-dev
+

+

Oracle

+
    +
  1. Lag en tom fil og kall den setup_nb.sh
    2. +
  2. Lim inn følgene kodesnutt: +
    apt-get update && apt-get install -yq --no-install-recommends \
+    build-essential \
+    curl \
+    alien \
+    libaio1 \
+    libaio-dev && \
+    apt-get clean && \
+    rm -rf /var/lib/apt/lists/*
+
+curl https://download.oracle.com/otn_software/linux/instantclient/215000/oracle-instantclient-basic-21.9.0.0.0-1.x86_64.rpm > /tmp/oracle-instantclient-basic-21.9.0.0.0-1.x86_64.rpm
+
+alien -i /tmp/oracle-instantclient-basic-21.9.0.0.0-1.x86_64.rpm && \
+    rm -rf /var/cache/yum && \
+    rm -f /tmp/oracle-instantclient-basic-21.9.0.0.0-1.x86_64.rpm && \
+    echo "/usr/lib/oracle/21.9/client64/lib" > /etc/ld.so.conf.d/oracle-instantclient21.9.conf && \
+    /usr/sbin/ldconfig
+
+PATH=$PATH:/usr/lib/oracle/21.9/client64/bin
+
    3. +
+
+

Nå vil skriptet installere versjon 21.9 av oracle klienten. Dersom du i stedet ønsker en annen versjon kan editere skriptet over med den versjonen du ønsker. Du finner en liste over tilgjengelige versjoner av oracle klienten her.

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TDV driver

+ +

Imager vi tilbyr for Jupyterhub og Airflow kommer uten TDV driver. +Er du avhengig av denne driveren er du nødt til å enten bygge et custom image med driveren inkludert eller (for jupyterhub) laste den opp til hjemmeområde på Jupyterhub serveren.

+

Driveren finner du via utviklerimage ved å gå til F:\DVH\TIBCO\drivers\TIB_tdv_drivers_x.x.x_all\apps\odbc\linux64 (erstatt x med ønsket versjon).

+

Bygge custom image

+

For Airflow og dersom du ønsker å bygge eget image med driveren for Jupyterhub kan du legge til som følger i Dockerfilen:

+
# Add TDV ODBC driver and set env
+COPY TDV/driver/libcomposite86_x64.so /opt/TDV/driver/libcomposite86_x64.so
+RUN chown -R jovyan:users  /opt/TDV
+ENV TDV_ODBC_DRIVER /opt/TDV/driver/libcomposite86_x64.so
+
+
+

Merk: eksempelet over forutsetter at TDV driveren er inkludert i github repoet hvor imaget bygges på stien TDV/driver/libcomposite86_x64.so

+
+

Eksempel på bruk av TDV driver

+
import os
+import pyodbc
+import pandas as pd
+
+def create_tdv_conn(server: str, port: int, datasource: str, uid: str, pwd: str):
+    conn_str = "DRIVER={" + os.environ["TDV_ODBC_DRIVER"] + "};DOMAIN=ADEO;SERVER=" + server + ";PORT=" + str(port) + ";DATASOURCE=" + datasource + ";UID=" + uid + ";PWD=" + pwd
+    conn = pyodbc.connect(conn_str)
+    conn.setencoding(encoding='utf-8')
+    conn.setdecoding(pyodbc.SQL_WCHAR, encoding='utf-8')
+    conn.setdecoding(pyodbc.SQL_CHAR, encoding='utf-8')
+    return conn
+
+conn = create_tdv_conn(server="tdv-p.adeo.no", port=1234, datasource="Plattform", uid=os.environ["TDV_USER"], pwd=os.environ["TDV_PASSWORD"])
+
+df = pd.read_sql("SELECT * FROM schema.table", conn)
+df.head()
+
+
+

Kode eksempelet forutsetter at miljøvariabelen TDV_ODBC_DRIVER er satt til å peke på stien til TDV driveren. Dersom du ikke har bygget eget image og i stedet bare har lastet driveren opp til hjemmeområdet (/home/jovyan) på notebook serveren må du i stedet sette denne stien direkte.

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t=W("input",e),r=S("meta",{name:"theme-color"});document.head.appendChild(r);let o=S("meta",{name:"color-scheme"});document.head.appendChild(o);let n=At("(prefers-color-scheme: light)");return H(()=>{let i=new x;return i.subscribe(s=>{if(document.body.setAttribute("data-md-color-switching",""),s.color.media==="(prefers-color-scheme)"){let a=matchMedia("(prefers-color-scheme: light)"),c=document.querySelector(a.matches?"[data-md-color-media='(prefers-color-scheme: light)']":"[data-md-color-media='(prefers-color-scheme: dark)']");s.color.scheme=c.getAttribute("data-md-color-scheme"),s.color.primary=c.getAttribute("data-md-color-primary"),s.color.accent=c.getAttribute("data-md-color-accent")}for(let[a,c]of Object.entries(s.color))document.body.setAttribute(`data-md-color-${a}`,c);for(let a=0;a{let s=Oe("header"),a=window.getComputedStyle(s);return 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r.subscribe(({url:n})=>{e.setAttribute("data-clipboard-text",e.href),e.href=`${n}`}),h(e,"click").pipe(j(o)).subscribe(n=>n.preventDefault()),Va(e,t).pipe(T(n=>r.next(n)),A(()=>r.complete()),m(n=>P({ref:e},n)))}function Xn(e,{worker$:t,keyboard$:r}){let o=new x,n=Oe("search-query"),i=L(h(n,"keydown"),h(n,"focus")).pipe(Me(ie),m(()=>n.value),X());return o.pipe(Ze(i),m(([{suggest:a},c])=>{let p=c.split(/([\s-]+)/);if(a!=null&&a.length&&p[p.length-1]){let l=a[a.length-1];l.startsWith(p[p.length-1])&&(p[p.length-1]=l)}else p.length=0;return p})).subscribe(a=>e.innerHTML=a.join("").replace(/\s/g," ")),r.pipe(v(({mode:a})=>a==="search")).subscribe(a=>{switch(a.type){case"ArrowRight":e.innerText.length&&n.selectionStart===n.value.length&&(n.value=e.innerText);break}}),t.pipe(v(dr),m(({data:a})=>a)).pipe(T(a=>o.next(a)),A(()=>o.complete()),m(()=>({ref:e})))}function Zn(e,{index$:t,keyboard$:r}){let o=he();try{let n=Qn(o.search,t),i=Oe("search-query",e),s=Oe("search-result",e);h(e,"click").pipe(v(({target:c})=>c instanceof Element&&!!c.closest("a"))).subscribe(()=>Ye("search",!1)),r.pipe(v(({mode:c})=>c==="search")).subscribe(c=>{let p=Ie();switch(c.type){case"Enter":if(p===i){let l=new Map;for(let f of W(":first-child [href]",s)){let u=f.firstElementChild;l.set(f,parseFloat(u.getAttribute("data-md-score")))}if(l.size){let[[f]]=[...l].sort(([,u],[,d])=>d-u);f.click()}c.claim()}break;case"Escape":case"Tab":Ye("search",!1),i.blur();break;case"ArrowUp":case"ArrowDown":if(typeof p=="undefined")i.focus();else{let l=[i,...W(":not(details) > [href], summary, details[open] [href]",s)],f=Math.max(0,(Math.max(0,l.indexOf(p))+l.length+(c.type==="ArrowUp"?-1:1))%l.length);l[f].focus()}c.claim();break;default:i!==Ie()&&i.focus()}}),r.pipe(v(({mode:c})=>c==="global")).subscribe(c=>{switch(c.type){case"f":case"s":case"/":i.focus(),i.select(),c.claim();break}});let a=Bn(i,{worker$:n});return L(a,Gn(s,{worker$:n,query$:a})).pipe(Re(...ne("search-share",e).map(c=>Jn(c,{query$:a})),...ne("search-suggest",e).map(c=>Xn(c,{worker$:n,keyboard$:r}))))}catch(n){return e.hidden=!0,Ke}}function ei(e,{index$:t,location$:r}){return B([t,r.pipe(q(me()),v(o=>!!o.searchParams.get("h")))]).pipe(m(([o,n])=>Kn(o.config)(n.searchParams.get("h"))),m(o=>{var s;let n=new Map,i=document.createNodeIterator(e,NodeFilter.SHOW_TEXT);for(let a=i.nextNode();a;a=i.nextNode())if((s=a.parentElement)!=null&&s.offsetHeight){let c=a.textContent,p=o(c);p.length>c.length&&n.set(a,p)}for(let[a,c]of n){let{childNodes:p}=S("span",null,c);a.replaceWith(...Array.from(p))}return{ref:e,nodes:n}}))}function za(e,{viewport$:t,main$:r}){let o=e.closest(".md-grid"),n=o.offsetTop-o.parentElement.offsetTop;return B([r,t]).pipe(m(([{offset:i,height:s},{offset:{y:a}}])=>(s=s+Math.min(n,Math.max(0,a-i))-n,{height:s,locked:a>=i+n})),X((i,s)=>i.height===s.height&&i.locked===s.locked))}function Br(e,o){var 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(function () { 'use strict';\n\n /**\n * Applies the :focus-visible polyfill at the given scope.\n * A scope in this case is either the top-level Document or a Shadow Root.\n *\n * @param {(Document|ShadowRoot)} scope\n * @see https://github.com/WICG/focus-visible\n */\n function applyFocusVisiblePolyfill(scope) {\n var hadKeyboardEvent = true;\n var hadFocusVisibleRecently = false;\n var hadFocusVisibleRecentlyTimeout = null;\n\n var inputTypesAllowlist = {\n text: true,\n search: true,\n url: true,\n tel: true,\n email: true,\n password: true,\n number: true,\n date: true,\n month: true,\n week: true,\n time: true,\n datetime: true,\n 'datetime-local': true\n };\n\n /**\n * Helper function for legacy browsers and iframes which sometimes focus\n * elements like document, body, and non-interactive SVG.\n * @param {Element} el\n */\n function isValidFocusTarget(el) {\n if (\n el &&\n el !== document &&\n el.nodeName !== 'HTML' &&\n el.nodeName !== 'BODY' &&\n 'classList' in el &&\n 'contains' in el.classList\n ) {\n return true;\n }\n return false;\n }\n\n /**\n * Computes whether the given element should automatically trigger the\n * `focus-visible` class being added, i.e. whether it should always match\n * `:focus-visible` when focused.\n * @param {Element} el\n * @return {boolean}\n */\n function focusTriggersKeyboardModality(el) {\n var type = el.type;\n var tagName = el.tagName;\n\n if (tagName === 'INPUT' && inputTypesAllowlist[type] && !el.readOnly) {\n return true;\n }\n\n if (tagName === 'TEXTAREA' && !el.readOnly) {\n return true;\n }\n\n if (el.isContentEditable) {\n return true;\n }\n\n return false;\n }\n\n /**\n * Add the `focus-visible` class to the given element if it was not added by\n * the author.\n * @param {Element} el\n */\n function addFocusVisibleClass(el) {\n if (el.classList.contains('focus-visible')) {\n return;\n }\n el.classList.add('focus-visible');\n el.setAttribute('data-focus-visible-added', '');\n }\n\n /**\n * Remove the `focus-visible` class from the given element if it was not\n * originally added by the author.\n * @param {Element} el\n */\n function removeFocusVisibleClass(el) {\n if (!el.hasAttribute('data-focus-visible-added')) {\n return;\n }\n el.classList.remove('focus-visible');\n el.removeAttribute('data-focus-visible-added');\n }\n\n /**\n * If the most recent user interaction was via the keyboard;\n * and the key press did not include a meta, alt/option, or control key;\n * then the modality is keyboard. Otherwise, the modality is not keyboard.\n * Apply `focus-visible` to any current active element and keep track\n * of our keyboard modality state with `hadKeyboardEvent`.\n * @param {KeyboardEvent} e\n */\n function onKeyDown(e) {\n if (e.metaKey || e.altKey || e.ctrlKey) {\n return;\n }\n\n if (isValidFocusTarget(scope.activeElement)) {\n addFocusVisibleClass(scope.activeElement);\n }\n\n hadKeyboardEvent = true;\n }\n\n /**\n * If at any point a user clicks with a pointing device, ensure that we change\n * the modality away from keyboard.\n * This avoids the situation where a user presses a key on an already focused\n * element, and then clicks on a different element, focusing it with a\n * pointing device, while we still think we're in keyboard modality.\n * @param {Event} e\n */\n function onPointerDown(e) {\n hadKeyboardEvent = false;\n }\n\n /**\n * On `focus`, add the `focus-visible` class to the target if:\n * - the target received focus as a result of keyboard navigation, or\n * - the event target is an element that will likely require interaction\n * via the keyboard (e.g. a text box)\n * @param {Event} e\n */\n function onFocus(e) {\n // Prevent IE from focusing the document or HTML element.\n if (!isValidFocusTarget(e.target)) {\n return;\n }\n\n if (hadKeyboardEvent || focusTriggersKeyboardModality(e.target)) {\n addFocusVisibleClass(e.target);\n }\n }\n\n /**\n * On `blur`, remove the `focus-visible` class from the target.\n * @param {Event} e\n */\n function onBlur(e) {\n if (!isValidFocusTarget(e.target)) {\n return;\n }\n\n if (\n e.target.classList.contains('focus-visible') ||\n e.target.hasAttribute('data-focus-visible-added')\n ) {\n // To detect a tab/window switch, we look for a blur event followed\n // rapidly by a visibility change.\n // If we don't see a visibility change within 100ms, it's probably a\n // regular focus change.\n hadFocusVisibleRecently = true;\n window.clearTimeout(hadFocusVisibleRecentlyTimeout);\n hadFocusVisibleRecentlyTimeout = window.setTimeout(function() {\n hadFocusVisibleRecently = false;\n }, 100);\n removeFocusVisibleClass(e.target);\n }\n }\n\n /**\n * If the user changes tabs, keep track of whether or not the previously\n * focused element had .focus-visible.\n * @param {Event} e\n */\n function onVisibilityChange(e) {\n if (document.visibilityState === 'hidden') {\n // If the tab becomes active again, the browser will handle calling focus\n // on the element (Safari actually calls it twice).\n // If this tab change caused a blur on an element with focus-visible,\n // re-apply the class when the user switches back to the tab.\n if (hadFocusVisibleRecently) {\n hadKeyboardEvent = true;\n }\n addInitialPointerMoveListeners();\n }\n }\n\n /**\n * Add a group of listeners to detect usage of any pointing devices.\n * These listeners will be added when the polyfill first loads, and anytime\n * the window is blurred, so that they are active when the window regains\n * focus.\n */\n function addInitialPointerMoveListeners() {\n document.addEventListener('mousemove', onInitialPointerMove);\n document.addEventListener('mousedown', onInitialPointerMove);\n document.addEventListener('mouseup', onInitialPointerMove);\n document.addEventListener('pointermove', onInitialPointerMove);\n document.addEventListener('pointerdown', onInitialPointerMove);\n document.addEventListener('pointerup', onInitialPointerMove);\n document.addEventListener('touchmove', onInitialPointerMove);\n document.addEventListener('touchstart', onInitialPointerMove);\n document.addEventListener('touchend', onInitialPointerMove);\n }\n\n function removeInitialPointerMoveListeners() {\n document.removeEventListener('mousemove', onInitialPointerMove);\n document.removeEventListener('mousedown', onInitialPointerMove);\n document.removeEventListener('mouseup', onInitialPointerMove);\n document.removeEventListener('pointermove', onInitialPointerMove);\n document.removeEventListener('pointerdown', onInitialPointerMove);\n document.removeEventListener('pointerup', onInitialPointerMove);\n document.removeEventListener('touchmove', onInitialPointerMove);\n document.removeEventListener('touchstart', onInitialPointerMove);\n document.removeEventListener('touchend', onInitialPointerMove);\n }\n\n /**\n * When the polfyill first loads, assume the user is in keyboard modality.\n * If any event is received from a pointing device (e.g. mouse, pointer,\n * touch), turn off keyboard modality.\n * This accounts for situations where focus enters the page from the URL bar.\n * @param {Event} e\n */\n function onInitialPointerMove(e) {\n // Work around a Safari quirk that fires a mousemove on whenever the\n // window blurs, even if you're tabbing out of the page. \u00AF\\_(\u30C4)_/\u00AF\n if (e.target.nodeName && e.target.nodeName.toLowerCase() === 'html') {\n return;\n }\n\n hadKeyboardEvent = false;\n removeInitialPointerMoveListeners();\n }\n\n // For some kinds of state, we are interested in changes at the global scope\n // only. For example, global pointer input, global key presses and global\n // visibility change should affect the state at every scope:\n document.addEventListener('keydown', onKeyDown, true);\n document.addEventListener('mousedown', onPointerDown, true);\n document.addEventListener('pointerdown', onPointerDown, true);\n document.addEventListener('touchstart', onPointerDown, true);\n document.addEventListener('visibilitychange', onVisibilityChange, true);\n\n addInitialPointerMoveListeners();\n\n // For focus and blur, we specifically care about state changes in the local\n // scope. This is because focus / blur events that originate from within a\n // shadow root are not re-dispatched from the host element if it was already\n // the active element in its own scope:\n scope.addEventListener('focus', onFocus, true);\n scope.addEventListener('blur', onBlur, true);\n\n // We detect that a node is a ShadowRoot by ensuring that it is a\n // DocumentFragment and also has a host property. This check covers native\n // implementation and polyfill implementation transparently. If we only cared\n // about the native implementation, we could just check if the scope was\n // an instance of a ShadowRoot.\n if (scope.nodeType === Node.DOCUMENT_FRAGMENT_NODE && scope.host) {\n // Since a ShadowRoot is a special kind of DocumentFragment, it does not\n // have a root element to add a class to. So, we add this attribute to the\n // host element instead:\n scope.host.setAttribute('data-js-focus-visible', '');\n } else if (scope.nodeType === Node.DOCUMENT_NODE) {\n document.documentElement.classList.add('js-focus-visible');\n document.documentElement.setAttribute('data-js-focus-visible', '');\n }\n }\n\n // It is important to wrap all references to global window and document in\n // these checks to support server-side rendering use cases\n // @see https://github.com/WICG/focus-visible/issues/199\n if (typeof window !== 'undefined' && typeof document !== 'undefined') {\n // Make the polyfill helper globally available. This can be used as a signal\n // to interested libraries that wish to coordinate with the polyfill for e.g.,\n // applying the polyfill to a shadow root:\n window.applyFocusVisiblePolyfill = applyFocusVisiblePolyfill;\n\n // Notify interested libraries of the polyfill's presence, in case the\n // polyfill was loaded lazily:\n var event;\n\n try {\n event = new CustomEvent('focus-visible-polyfill-ready');\n } catch (error) {\n // IE11 does not support using CustomEvent as a constructor directly:\n event = document.createEvent('CustomEvent');\n event.initCustomEvent('focus-visible-polyfill-ready', false, false, {});\n }\n\n window.dispatchEvent(event);\n }\n\n if (typeof document !== 'undefined') {\n // Apply the polyfill to the global document, so that no JavaScript\n // coordination is required to use the polyfill in the top-level document:\n applyFocusVisiblePolyfill(document);\n }\n\n})));\n", "/*!\n * clipboard.js v2.0.11\n * https://clipboardjs.com/\n *\n * Licensed MIT \u00A9 Zeno Rocha\n */\n(function webpackUniversalModuleDefinition(root, factory) {\n\tif(typeof exports === 'object' && typeof module === 'object')\n\t\tmodule.exports = factory();\n\telse if(typeof define === 'function' && define.amd)\n\t\tdefine([], factory);\n\telse if(typeof exports === 'object')\n\t\texports[\"ClipboardJS\"] = factory();\n\telse\n\t\troot[\"ClipboardJS\"] = factory();\n})(this, function() {\nreturn /******/ (function() { // webpackBootstrap\n/******/ \tvar __webpack_modules__ = ({\n\n/***/ 686:\n/***/ (function(__unused_webpack_module, __webpack_exports__, __webpack_require__) {\n\n\"use strict\";\n\n// EXPORTS\n__webpack_require__.d(__webpack_exports__, {\n \"default\": function() { return /* binding */ clipboard; }\n});\n\n// EXTERNAL MODULE: ./node_modules/tiny-emitter/index.js\nvar tiny_emitter = __webpack_require__(279);\nvar tiny_emitter_default = /*#__PURE__*/__webpack_require__.n(tiny_emitter);\n// EXTERNAL MODULE: ./node_modules/good-listener/src/listen.js\nvar listen = __webpack_require__(370);\nvar listen_default = /*#__PURE__*/__webpack_require__.n(listen);\n// EXTERNAL MODULE: ./node_modules/select/src/select.js\nvar src_select = __webpack_require__(817);\nvar select_default = /*#__PURE__*/__webpack_require__.n(src_select);\n;// CONCATENATED MODULE: ./src/common/command.js\n/**\n * Executes a given operation type.\n * @param {String} type\n * @return {Boolean}\n */\nfunction command(type) {\n try {\n return document.execCommand(type);\n } catch (err) {\n return false;\n }\n}\n;// CONCATENATED MODULE: ./src/actions/cut.js\n\n\n/**\n * Cut action wrapper.\n * @param {String|HTMLElement} target\n * @return {String}\n */\n\nvar ClipboardActionCut = function ClipboardActionCut(target) {\n var selectedText = select_default()(target);\n command('cut');\n return selectedText;\n};\n\n/* harmony default export */ var actions_cut = (ClipboardActionCut);\n;// CONCATENATED MODULE: ./src/common/create-fake-element.js\n/**\n * Creates a fake textarea element with a value.\n * @param {String} value\n * @return {HTMLElement}\n */\nfunction createFakeElement(value) {\n var isRTL = document.documentElement.getAttribute('dir') === 'rtl';\n var fakeElement = document.createElement('textarea'); // Prevent zooming on iOS\n\n fakeElement.style.fontSize = '12pt'; // Reset box model\n\n fakeElement.style.border = '0';\n fakeElement.style.padding = '0';\n fakeElement.style.margin = '0'; // Move element out of screen horizontally\n\n fakeElement.style.position = 'absolute';\n fakeElement.style[isRTL ? 'right' : 'left'] = '-9999px'; // Move element to the same position vertically\n\n var yPosition = window.pageYOffset || document.documentElement.scrollTop;\n fakeElement.style.top = \"\".concat(yPosition, \"px\");\n fakeElement.setAttribute('readonly', '');\n fakeElement.value = value;\n return fakeElement;\n}\n;// CONCATENATED MODULE: ./src/actions/copy.js\n\n\n\n/**\n * Create fake copy action wrapper using a fake element.\n * @param {String} target\n * @param {Object} options\n * @return {String}\n */\n\nvar fakeCopyAction = function fakeCopyAction(value, options) {\n var fakeElement = createFakeElement(value);\n options.container.appendChild(fakeElement);\n var selectedText = select_default()(fakeElement);\n command('copy');\n fakeElement.remove();\n return selectedText;\n};\n/**\n * Copy action wrapper.\n * @param {String|HTMLElement} target\n * @param {Object} options\n * @return {String}\n */\n\n\nvar ClipboardActionCopy = function ClipboardActionCopy(target) {\n var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {\n container: document.body\n };\n var selectedText = '';\n\n if (typeof target === 'string') {\n selectedText = fakeCopyAction(target, options);\n } else if (target instanceof HTMLInputElement && !['text', 'search', 'url', 'tel', 'password'].includes(target === null || target === void 0 ? void 0 : target.type)) {\n // If input type doesn't support `setSelectionRange`. Simulate it. https://developer.mozilla.org/en-US/docs/Web/API/HTMLInputElement/setSelectionRange\n selectedText = fakeCopyAction(target.value, options);\n } else {\n selectedText = select_default()(target);\n command('copy');\n }\n\n return selectedText;\n};\n\n/* harmony default export */ var actions_copy = (ClipboardActionCopy);\n;// CONCATENATED MODULE: ./src/actions/default.js\nfunction _typeof(obj) { \"@babel/helpers - typeof\"; if (typeof Symbol === \"function\" && typeof Symbol.iterator === \"symbol\") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === \"function\" && obj.constructor === Symbol && obj !== Symbol.prototype ? \"symbol\" : typeof obj; }; } return _typeof(obj); }\n\n\n\n/**\n * Inner function which performs selection from either `text` or `target`\n * properties and then executes copy or cut operations.\n * @param {Object} options\n */\n\nvar ClipboardActionDefault = function ClipboardActionDefault() {\n var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};\n // Defines base properties passed from constructor.\n var _options$action = options.action,\n action = _options$action === void 0 ? 'copy' : _options$action,\n container = options.container,\n target = options.target,\n text = options.text; // Sets the `action` to be performed which can be either 'copy' or 'cut'.\n\n if (action !== 'copy' && action !== 'cut') {\n throw new Error('Invalid \"action\" value, use either \"copy\" or \"cut\"');\n } // Sets the `target` property using an element that will be have its content copied.\n\n\n if (target !== undefined) {\n if (target && _typeof(target) === 'object' && target.nodeType === 1) {\n if (action === 'copy' && target.hasAttribute('disabled')) {\n throw new Error('Invalid \"target\" attribute. Please use \"readonly\" instead of \"disabled\" attribute');\n }\n\n if (action === 'cut' && (target.hasAttribute('readonly') || target.hasAttribute('disabled'))) {\n throw new Error('Invalid \"target\" attribute. You can\\'t cut text from elements with \"readonly\" or \"disabled\" attributes');\n }\n } else {\n throw new Error('Invalid \"target\" value, use a valid Element');\n }\n } // Define selection strategy based on `text` property.\n\n\n if (text) {\n return actions_copy(text, {\n container: container\n });\n } // Defines which selection strategy based on `target` property.\n\n\n if (target) {\n return action === 'cut' ? actions_cut(target) : actions_copy(target, {\n container: container\n });\n }\n};\n\n/* harmony default export */ var actions_default = (ClipboardActionDefault);\n;// CONCATENATED MODULE: ./src/clipboard.js\nfunction clipboard_typeof(obj) { \"@babel/helpers - typeof\"; if (typeof Symbol === \"function\" && typeof Symbol.iterator === \"symbol\") { clipboard_typeof = function _typeof(obj) { return typeof obj; }; } else { clipboard_typeof = function _typeof(obj) { return obj && typeof Symbol === \"function\" && obj.constructor === Symbol && obj !== Symbol.prototype ? \"symbol\" : typeof obj; }; } return clipboard_typeof(obj); }\n\nfunction _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError(\"Cannot call a class as a function\"); } }\n\nfunction _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if (\"value\" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }\n\nfunction _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }\n\nfunction _inherits(subClass, superClass) { if (typeof superClass !== \"function\" && superClass !== null) { throw new TypeError(\"Super expression must either be null or a function\"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); if (superClass) _setPrototypeOf(subClass, superClass); }\n\nfunction _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }\n\nfunction _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function _createSuperInternal() { var Super = _getPrototypeOf(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = _getPrototypeOf(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return _possibleConstructorReturn(this, result); }; }\n\nfunction _possibleConstructorReturn(self, call) { if (call && (clipboard_typeof(call) === \"object\" || typeof call === \"function\")) { return call; } return _assertThisInitialized(self); }\n\nfunction _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError(\"this hasn't been initialised - super() hasn't been called\"); } return self; }\n\nfunction _isNativeReflectConstruct() { if (typeof Reflect === \"undefined\" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === \"function\") return true; try { Date.prototype.toString.call(Reflect.construct(Date, [], function () {})); return true; } catch (e) { return false; } }\n\nfunction _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); }\n\n\n\n\n\n\n/**\n * Helper function to retrieve attribute value.\n * @param {String} suffix\n * @param {Element} element\n */\n\nfunction getAttributeValue(suffix, element) {\n var attribute = \"data-clipboard-\".concat(suffix);\n\n if (!element.hasAttribute(attribute)) {\n return;\n }\n\n return element.getAttribute(attribute);\n}\n/**\n * Base class which takes one or more elements, adds event listeners to them,\n * and instantiates a new `ClipboardAction` on each click.\n */\n\n\nvar Clipboard = /*#__PURE__*/function (_Emitter) {\n _inherits(Clipboard, _Emitter);\n\n var _super = _createSuper(Clipboard);\n\n /**\n * @param {String|HTMLElement|HTMLCollection|NodeList} trigger\n * @param {Object} options\n */\n function Clipboard(trigger, options) {\n var _this;\n\n _classCallCheck(this, Clipboard);\n\n _this = _super.call(this);\n\n _this.resolveOptions(options);\n\n _this.listenClick(trigger);\n\n return _this;\n }\n /**\n * Defines if attributes would be resolved using internal setter functions\n * or custom functions that were passed in the constructor.\n * @param {Object} options\n */\n\n\n _createClass(Clipboard, [{\n key: \"resolveOptions\",\n value: function resolveOptions() {\n var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};\n this.action = typeof options.action === 'function' ? options.action : this.defaultAction;\n this.target = typeof options.target === 'function' ? options.target : this.defaultTarget;\n this.text = typeof options.text === 'function' ? options.text : this.defaultText;\n this.container = clipboard_typeof(options.container) === 'object' ? options.container : document.body;\n }\n /**\n * Adds a click event listener to the passed trigger.\n * @param {String|HTMLElement|HTMLCollection|NodeList} trigger\n */\n\n }, {\n key: \"listenClick\",\n value: function listenClick(trigger) {\n var _this2 = this;\n\n this.listener = listen_default()(trigger, 'click', function (e) {\n return _this2.onClick(e);\n });\n }\n /**\n * Defines a new `ClipboardAction` on each click event.\n * @param {Event} e\n */\n\n }, {\n key: \"onClick\",\n value: function onClick(e) {\n var trigger = e.delegateTarget || e.currentTarget;\n var action = this.action(trigger) || 'copy';\n var text = actions_default({\n action: action,\n container: this.container,\n target: this.target(trigger),\n text: this.text(trigger)\n }); // Fires an event based on the copy operation result.\n\n this.emit(text ? 'success' : 'error', {\n action: action,\n text: text,\n trigger: trigger,\n clearSelection: function clearSelection() {\n if (trigger) {\n trigger.focus();\n }\n\n window.getSelection().removeAllRanges();\n }\n });\n }\n /**\n * Default `action` lookup function.\n * @param {Element} trigger\n */\n\n }, {\n key: \"defaultAction\",\n value: function defaultAction(trigger) {\n return getAttributeValue('action', trigger);\n }\n /**\n * Default `target` lookup function.\n * @param {Element} trigger\n */\n\n }, {\n key: \"defaultTarget\",\n value: function defaultTarget(trigger) {\n var selector = getAttributeValue('target', trigger);\n\n if (selector) {\n return document.querySelector(selector);\n }\n }\n /**\n * Allow fire programmatically a copy action\n * @param {String|HTMLElement} target\n * @param {Object} options\n * @returns Text copied.\n */\n\n }, {\n key: \"defaultText\",\n\n /**\n * Default `text` lookup function.\n * @param {Element} trigger\n */\n value: function defaultText(trigger) {\n return getAttributeValue('text', trigger);\n }\n /**\n * Destroy lifecycle.\n */\n\n }, {\n key: \"destroy\",\n value: function destroy() {\n this.listener.destroy();\n }\n }], [{\n key: \"copy\",\n value: function copy(target) {\n var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {\n container: document.body\n };\n return actions_copy(target, options);\n }\n /**\n * Allow fire programmatically a cut action\n * @param {String|HTMLElement} target\n * @returns Text cutted.\n */\n\n }, {\n key: \"cut\",\n value: function cut(target) {\n return actions_cut(target);\n }\n /**\n * Returns the support of the given action, or all actions if no action is\n * given.\n * @param {String} [action]\n */\n\n }, {\n key: \"isSupported\",\n value: function isSupported() {\n var action = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : ['copy', 'cut'];\n var actions = typeof action === 'string' ? [action] : action;\n var support = !!document.queryCommandSupported;\n actions.forEach(function (action) {\n support = support && !!document.queryCommandSupported(action);\n });\n return support;\n }\n }]);\n\n return Clipboard;\n}((tiny_emitter_default()));\n\n/* harmony default export */ var clipboard = (Clipboard);\n\n/***/ }),\n\n/***/ 828:\n/***/ (function(module) {\n\nvar DOCUMENT_NODE_TYPE = 9;\n\n/**\n * A polyfill for Element.matches()\n */\nif (typeof Element !== 'undefined' && !Element.prototype.matches) {\n var proto = Element.prototype;\n\n proto.matches = proto.matchesSelector ||\n proto.mozMatchesSelector ||\n proto.msMatchesSelector ||\n proto.oMatchesSelector ||\n proto.webkitMatchesSelector;\n}\n\n/**\n * Finds the closest parent that matches a selector.\n *\n * @param {Element} element\n * @param {String} selector\n * @return {Function}\n */\nfunction closest (element, selector) {\n while (element && element.nodeType !== DOCUMENT_NODE_TYPE) {\n if (typeof element.matches === 'function' &&\n element.matches(selector)) {\n return element;\n }\n element = element.parentNode;\n }\n}\n\nmodule.exports = closest;\n\n\n/***/ }),\n\n/***/ 438:\n/***/ (function(module, __unused_webpack_exports, __webpack_require__) {\n\nvar closest = __webpack_require__(828);\n\n/**\n * Delegates event to a selector.\n *\n * @param {Element} element\n * @param {String} selector\n * @param {String} type\n * @param {Function} callback\n * @param {Boolean} useCapture\n * @return {Object}\n */\nfunction _delegate(element, selector, type, callback, useCapture) {\n var listenerFn = listener.apply(this, arguments);\n\n element.addEventListener(type, listenerFn, useCapture);\n\n return {\n destroy: function() {\n element.removeEventListener(type, listenerFn, useCapture);\n }\n }\n}\n\n/**\n * Delegates event to a selector.\n *\n * @param {Element|String|Array} [elements]\n * @param {String} selector\n * @param {String} type\n * @param {Function} callback\n * @param {Boolean} useCapture\n * @return {Object}\n */\nfunction delegate(elements, selector, type, callback, useCapture) {\n // Handle the regular Element usage\n if (typeof elements.addEventListener === 'function') {\n return _delegate.apply(null, arguments);\n }\n\n // Handle Element-less usage, it defaults to global delegation\n if (typeof type === 'function') {\n // Use `document` as the first parameter, then apply arguments\n // This is a short way to .unshift `arguments` without running into deoptimizations\n return _delegate.bind(null, document).apply(null, arguments);\n }\n\n // Handle Selector-based usage\n if (typeof elements === 'string') {\n elements = document.querySelectorAll(elements);\n }\n\n // Handle Array-like based usage\n return Array.prototype.map.call(elements, function (element) {\n return _delegate(element, selector, type, callback, useCapture);\n });\n}\n\n/**\n * Finds closest match and invokes callback.\n *\n * @param {Element} element\n * @param {String} selector\n * @param {String} type\n * @param {Function} callback\n * @return {Function}\n */\nfunction listener(element, selector, type, callback) {\n return function(e) {\n e.delegateTarget = closest(e.target, selector);\n\n if (e.delegateTarget) {\n callback.call(element, e);\n }\n }\n}\n\nmodule.exports = delegate;\n\n\n/***/ }),\n\n/***/ 879:\n/***/ (function(__unused_webpack_module, exports) {\n\n/**\n * Check if argument is a HTML element.\n *\n * @param {Object} value\n * @return {Boolean}\n */\nexports.node = function(value) {\n return value !== undefined\n && value instanceof HTMLElement\n && value.nodeType === 1;\n};\n\n/**\n * Check if argument is a list of HTML elements.\n *\n * @param {Object} value\n * @return {Boolean}\n */\nexports.nodeList = function(value) {\n var type = Object.prototype.toString.call(value);\n\n return value !== undefined\n && (type === '[object NodeList]' || type === '[object HTMLCollection]')\n && ('length' in value)\n && (value.length === 0 || exports.node(value[0]));\n};\n\n/**\n * Check if argument is a string.\n *\n * @param {Object} value\n * @return {Boolean}\n */\nexports.string = function(value) {\n return typeof value === 'string'\n || value instanceof String;\n};\n\n/**\n * Check if argument is a function.\n *\n * @param {Object} value\n * @return {Boolean}\n */\nexports.fn = function(value) {\n var type = Object.prototype.toString.call(value);\n\n return type === '[object Function]';\n};\n\n\n/***/ }),\n\n/***/ 370:\n/***/ (function(module, __unused_webpack_exports, __webpack_require__) {\n\nvar is = __webpack_require__(879);\nvar delegate = __webpack_require__(438);\n\n/**\n * Validates all params and calls the right\n * listener function based on its target type.\n *\n * @param {String|HTMLElement|HTMLCollection|NodeList} target\n * @param {String} type\n * @param {Function} callback\n * @return {Object}\n */\nfunction listen(target, type, callback) {\n if (!target && !type && !callback) {\n throw new Error('Missing required arguments');\n }\n\n if (!is.string(type)) {\n throw new TypeError('Second argument must be a String');\n }\n\n if (!is.fn(callback)) {\n throw new TypeError('Third argument must be a Function');\n }\n\n if (is.node(target)) {\n return listenNode(target, type, callback);\n }\n else if (is.nodeList(target)) {\n return listenNodeList(target, type, callback);\n }\n else if (is.string(target)) {\n return listenSelector(target, type, callback);\n }\n else {\n throw new TypeError('First argument must be a String, HTMLElement, HTMLCollection, or NodeList');\n }\n}\n\n/**\n * Adds an event listener to a HTML element\n * and returns a remove listener function.\n *\n * @param {HTMLElement} node\n * @param {String} type\n * @param {Function} callback\n * @return {Object}\n */\nfunction listenNode(node, type, callback) {\n node.addEventListener(type, callback);\n\n return {\n destroy: function() {\n node.removeEventListener(type, callback);\n }\n }\n}\n\n/**\n * Add an event listener to a list of HTML elements\n * and returns a remove listener function.\n *\n * @param {NodeList|HTMLCollection} nodeList\n * @param {String} type\n * @param {Function} callback\n * @return {Object}\n */\nfunction listenNodeList(nodeList, type, callback) {\n Array.prototype.forEach.call(nodeList, function(node) {\n node.addEventListener(type, callback);\n });\n\n return {\n destroy: function() {\n Array.prototype.forEach.call(nodeList, function(node) {\n node.removeEventListener(type, callback);\n });\n }\n }\n}\n\n/**\n * Add an event listener to a selector\n * and returns a remove listener function.\n *\n * @param {String} selector\n * @param {String} type\n * @param {Function} callback\n * @return {Object}\n */\nfunction listenSelector(selector, type, callback) {\n return delegate(document.body, selector, type, callback);\n}\n\nmodule.exports = listen;\n\n\n/***/ }),\n\n/***/ 817:\n/***/ (function(module) {\n\nfunction select(element) {\n var selectedText;\n\n if (element.nodeName === 'SELECT') {\n element.focus();\n\n selectedText = element.value;\n }\n else if (element.nodeName === 'INPUT' || element.nodeName === 'TEXTAREA') {\n var isReadOnly = element.hasAttribute('readonly');\n\n if (!isReadOnly) {\n element.setAttribute('readonly', '');\n }\n\n element.select();\n element.setSelectionRange(0, element.value.length);\n\n if (!isReadOnly) {\n element.removeAttribute('readonly');\n }\n\n selectedText = element.value;\n }\n else {\n if (element.hasAttribute('contenteditable')) {\n element.focus();\n }\n\n var selection = window.getSelection();\n var range = document.createRange();\n\n range.selectNodeContents(element);\n selection.removeAllRanges();\n selection.addRange(range);\n\n selectedText = selection.toString();\n }\n\n return selectedText;\n}\n\nmodule.exports = select;\n\n\n/***/ }),\n\n/***/ 279:\n/***/ (function(module) {\n\nfunction E () {\n // Keep this empty so it's easier to inherit from\n // (via https://github.com/lipsmack from https://github.com/scottcorgan/tiny-emitter/issues/3)\n}\n\nE.prototype = {\n on: function (name, callback, ctx) {\n var e = this.e || (this.e = {});\n\n (e[name] || (e[name] = [])).push({\n fn: callback,\n ctx: ctx\n });\n\n return this;\n },\n\n once: function (name, callback, ctx) {\n var self = this;\n function listener () {\n self.off(name, listener);\n callback.apply(ctx, arguments);\n };\n\n listener._ = callback\n return this.on(name, listener, ctx);\n },\n\n emit: function (name) {\n var data = [].slice.call(arguments, 1);\n var evtArr = ((this.e || (this.e = {}))[name] || []).slice();\n var i = 0;\n var len = evtArr.length;\n\n for (i; i < len; i++) {\n evtArr[i].fn.apply(evtArr[i].ctx, data);\n }\n\n return this;\n },\n\n off: function (name, callback) {\n var e = this.e || (this.e = {});\n var evts = e[name];\n var liveEvents = [];\n\n if (evts && callback) {\n for (var i = 0, len = evts.length; i < len; i++) {\n if (evts[i].fn !== callback && evts[i].fn._ !== callback)\n liveEvents.push(evts[i]);\n }\n }\n\n // Remove event from queue to prevent memory leak\n // Suggested by https://github.com/lazd\n // Ref: https://github.com/scottcorgan/tiny-emitter/commit/c6ebfaa9bc973b33d110a84a307742b7cf94c953#commitcomment-5024910\n\n (liveEvents.length)\n ? e[name] = liveEvents\n : delete e[name];\n\n return this;\n }\n};\n\nmodule.exports = E;\nmodule.exports.TinyEmitter = E;\n\n\n/***/ })\n\n/******/ \t});\n/************************************************************************/\n/******/ \t// The module cache\n/******/ \tvar __webpack_module_cache__ = {};\n/******/ \t\n/******/ \t// The require function\n/******/ \tfunction __webpack_require__(moduleId) {\n/******/ \t\t// Check if module is in cache\n/******/ \t\tif(__webpack_module_cache__[moduleId]) {\n/******/ \t\t\treturn __webpack_module_cache__[moduleId].exports;\n/******/ \t\t}\n/******/ \t\t// Create a new module (and put it into the cache)\n/******/ \t\tvar module = __webpack_module_cache__[moduleId] = {\n/******/ \t\t\t// no module.id needed\n/******/ \t\t\t// no module.loaded needed\n/******/ \t\t\texports: {}\n/******/ \t\t};\n/******/ \t\n/******/ \t\t// Execute the module function\n/******/ \t\t__webpack_modules__[moduleId](module, module.exports, __webpack_require__);\n/******/ \t\n/******/ \t\t// Return the exports of the module\n/******/ \t\treturn module.exports;\n/******/ \t}\n/******/ \t\n/************************************************************************/\n/******/ \t/* webpack/runtime/compat get default export */\n/******/ \t!function() {\n/******/ \t\t// getDefaultExport function for compatibility with non-harmony modules\n/******/ \t\t__webpack_require__.n = function(module) {\n/******/ \t\t\tvar getter = module && module.__esModule ?\n/******/ \t\t\t\tfunction() { return module['default']; } :\n/******/ \t\t\t\tfunction() { return module; };\n/******/ \t\t\t__webpack_require__.d(getter, { a: getter });\n/******/ \t\t\treturn getter;\n/******/ \t\t};\n/******/ \t}();\n/******/ \t\n/******/ \t/* webpack/runtime/define property getters */\n/******/ \t!function() {\n/******/ \t\t// define getter functions for harmony exports\n/******/ \t\t__webpack_require__.d = function(exports, definition) {\n/******/ \t\t\tfor(var key in definition) {\n/******/ \t\t\t\tif(__webpack_require__.o(definition, key) && !__webpack_require__.o(exports, key)) {\n/******/ \t\t\t\t\tObject.defineProperty(exports, key, { enumerable: true, get: definition[key] });\n/******/ \t\t\t\t}\n/******/ \t\t\t}\n/******/ \t\t};\n/******/ \t}();\n/******/ \t\n/******/ \t/* webpack/runtime/hasOwnProperty shorthand */\n/******/ \t!function() {\n/******/ \t\t__webpack_require__.o = function(obj, prop) { return Object.prototype.hasOwnProperty.call(obj, prop); }\n/******/ \t}();\n/******/ \t\n/************************************************************************/\n/******/ \t// module exports must be returned from runtime so entry inlining is disabled\n/******/ \t// startup\n/******/ \t// Load entry module and return exports\n/******/ \treturn __webpack_require__(686);\n/******/ })()\n.default;\n});", "/*!\n * escape-html\n * Copyright(c) 2012-2013 TJ Holowaychuk\n * Copyright(c) 2015 Andreas Lubbe\n * Copyright(c) 2015 Tiancheng \"Timothy\" Gu\n * MIT Licensed\n */\n\n'use strict';\n\n/**\n * Module variables.\n * @private\n */\n\nvar matchHtmlRegExp = /[\"'&<>]/;\n\n/**\n * Module exports.\n * @public\n */\n\nmodule.exports = escapeHtml;\n\n/**\n * Escape special characters in the given string of html.\n *\n * @param {string} string The string to escape for inserting into HTML\n * @return {string}\n * @public\n */\n\nfunction escapeHtml(string) {\n var str = '' + string;\n var match = matchHtmlRegExp.exec(str);\n\n if (!match) {\n return str;\n }\n\n var escape;\n var html = '';\n var index = 0;\n var lastIndex = 0;\n\n for (index = match.index; index < str.length; index++) {\n switch (str.charCodeAt(index)) {\n case 34: // \"\n escape = '"';\n break;\n case 38: // &\n escape = '&';\n break;\n case 39: // '\n escape = ''';\n break;\n case 60: // <\n escape = '<';\n break;\n case 62: // >\n escape = '>';\n break;\n default:\n continue;\n }\n\n if (lastIndex !== index) {\n html += str.substring(lastIndex, index);\n }\n\n lastIndex = index + 1;\n html += escape;\n }\n\n return lastIndex !== index\n ? html + str.substring(lastIndex, index)\n : html;\n}\n", "/*\n * Copyright (c) 2016-2023 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport \"focus-visible\"\n\nimport {\n EMPTY,\n NEVER,\n Observable,\n Subject,\n defer,\n delay,\n filter,\n map,\n merge,\n mergeWith,\n shareReplay,\n switchMap\n} from \"rxjs\"\n\nimport { configuration, feature } from \"./_\"\nimport {\n at,\n getActiveElement,\n getOptionalElement,\n requestJSON,\n setLocation,\n setToggle,\n watchDocument,\n watchKeyboard,\n watchLocation,\n watchLocationTarget,\n watchMedia,\n watchPrint,\n watchScript,\n watchViewport\n} from \"./browser\"\nimport {\n getComponentElement,\n getComponentElements,\n mountAnnounce,\n mountBackToTop,\n mountConsent,\n mountContent,\n mountDialog,\n mountHeader,\n mountHeaderTitle,\n mountPalette,\n mountProgress,\n mountSearch,\n mountSearchHiglight,\n mountSidebar,\n mountSource,\n mountTableOfContents,\n mountTabs,\n watchHeader,\n watchMain\n} from \"./components\"\nimport {\n SearchIndex,\n setupClipboardJS,\n setupInstantNavigation,\n setupVersionSelector\n} from \"./integrations\"\nimport {\n patchEllipsis,\n patchIndeterminate,\n patchScrollfix,\n patchScrolllock\n} from \"./patches\"\nimport \"./polyfills\"\n\n/* ----------------------------------------------------------------------------\n * Functions - @todo refactor\n * ------------------------------------------------------------------------- */\n\n/**\n * Fetch search index\n *\n * @returns Search index observable\n */\nfunction fetchSearchIndex(): Observable {\n if (location.protocol === \"file:\") {\n return watchScript(\n `${new URL(\"search/search_index.js\", config.base)}`\n )\n .pipe(\n // @ts-ignore - @todo fix typings\n map(() => __index),\n shareReplay(1)\n )\n } else {\n return requestJSON(\n new URL(\"search/search_index.json\", config.base)\n )\n }\n}\n\n/* ----------------------------------------------------------------------------\n * Application\n * ------------------------------------------------------------------------- */\n\n/* Yay, JavaScript is available */\ndocument.documentElement.classList.remove(\"no-js\")\ndocument.documentElement.classList.add(\"js\")\n\n/* Set up navigation observables and subjects */\nconst document$ = watchDocument()\nconst location$ = watchLocation()\nconst target$ = watchLocationTarget(location$)\nconst keyboard$ = watchKeyboard()\n\n/* Set up media observables */\nconst viewport$ = watchViewport()\nconst tablet$ = watchMedia(\"(min-width: 960px)\")\nconst screen$ = watchMedia(\"(min-width: 1220px)\")\nconst print$ = watchPrint()\n\n/* Retrieve search index, if search is enabled */\nconst config = configuration()\nconst index$ = document.forms.namedItem(\"search\")\n ? fetchSearchIndex()\n : NEVER\n\n/* Set up Clipboard.js integration */\nconst alert$ = new Subject()\nsetupClipboardJS({ alert$ })\n\n/* Set up progress indicator */\nconst progress$ = new Subject()\n\n/* Set up instant navigation, if enabled */\nif (feature(\"navigation.instant\"))\n setupInstantNavigation({ location$, viewport$, progress$ })\n .subscribe(document$)\n\n/* Set up version selector */\nif (config.version?.provider === \"mike\")\n setupVersionSelector({ document$ })\n\n/* Always close drawer and search on navigation */\nmerge(location$, target$)\n .pipe(\n delay(125)\n )\n .subscribe(() => {\n setToggle(\"drawer\", false)\n setToggle(\"search\", false)\n })\n\n/* Set up global keyboard handlers */\nkeyboard$\n .pipe(\n filter(({ mode }) => mode === \"global\")\n )\n .subscribe(key => {\n switch (key.type) {\n\n /* Go to previous page */\n case \"p\":\n case \",\":\n const prev = getOptionalElement(\"link[rel=prev]\")\n if (typeof prev !== \"undefined\")\n setLocation(prev)\n break\n\n /* Go to next page */\n case \"n\":\n case \".\":\n const next = getOptionalElement(\"link[rel=next]\")\n if (typeof next !== \"undefined\")\n setLocation(next)\n break\n\n /* Expand navigation, see https://bit.ly/3ZjG5io */\n case \"Enter\":\n const active = getActiveElement()\n if (active instanceof HTMLLabelElement)\n active.click()\n }\n })\n\n/* Set up patches */\npatchEllipsis({ document$ })\npatchIndeterminate({ document$, tablet$ })\npatchScrollfix({ document$ })\npatchScrolllock({ viewport$, tablet$ })\n\n/* Set up header and main area observable */\nconst header$ = watchHeader(getComponentElement(\"header\"), { viewport$ })\nconst main$ = document$\n .pipe(\n map(() => getComponentElement(\"main\")),\n switchMap(el => watchMain(el, { viewport$, header$ })),\n shareReplay(1)\n )\n\n/* Set up control component observables */\nconst control$ = merge(\n\n /* Consent */\n ...getComponentElements(\"consent\")\n .map(el => mountConsent(el, { target$ })),\n\n /* Dialog */\n ...getComponentElements(\"dialog\")\n .map(el => mountDialog(el, { alert$ })),\n\n /* Header */\n ...getComponentElements(\"header\")\n .map(el => mountHeader(el, { viewport$, header$, main$ })),\n\n /* Color palette */\n ...getComponentElements(\"palette\")\n .map(el => mountPalette(el)),\n\n /* Progress bar */\n ...getComponentElements(\"progress\")\n .map(el => mountProgress(el, { progress$ })),\n\n /* Search */\n ...getComponentElements(\"search\")\n .map(el => mountSearch(el, { index$, keyboard$ })),\n\n /* Repository information */\n ...getComponentElements(\"source\")\n .map(el => mountSource(el))\n)\n\n/* Set up content component observables */\nconst content$ = defer(() => merge(\n\n /* Announcement bar */\n ...getComponentElements(\"announce\")\n .map(el => mountAnnounce(el)),\n\n /* Content */\n ...getComponentElements(\"content\")\n .map(el => mountContent(el, { viewport$, target$, print$ })),\n\n /* Search highlighting */\n ...getComponentElements(\"content\")\n .map(el => feature(\"search.highlight\")\n ? mountSearchHiglight(el, { index$, location$ })\n : EMPTY\n ),\n\n /* Header title */\n ...getComponentElements(\"header-title\")\n .map(el => mountHeaderTitle(el, { viewport$, header$ })),\n\n /* Sidebar */\n ...getComponentElements(\"sidebar\")\n .map(el => el.getAttribute(\"data-md-type\") === \"navigation\"\n ? at(screen$, () => mountSidebar(el, { viewport$, header$, main$ }))\n : at(tablet$, () => mountSidebar(el, { viewport$, header$, main$ }))\n ),\n\n /* Navigation tabs */\n ...getComponentElements(\"tabs\")\n .map(el => mountTabs(el, { viewport$, header$ })),\n\n /* Table of contents */\n ...getComponentElements(\"toc\")\n .map(el => mountTableOfContents(el, {\n viewport$, header$, main$, target$\n })),\n\n /* Back-to-top button */\n ...getComponentElements(\"top\")\n .map(el => mountBackToTop(el, { viewport$, header$, main$, target$ }))\n))\n\n/* Set up component observables */\nconst component$ = document$\n .pipe(\n switchMap(() => content$),\n mergeWith(control$),\n shareReplay(1)\n )\n\n/* Subscribe to all components */\ncomponent$.subscribe()\n\n/* ----------------------------------------------------------------------------\n * Exports\n * ------------------------------------------------------------------------- */\n\nwindow.document$ = document$ /* Document observable */\nwindow.location$ = location$ /* Location subject */\nwindow.target$ = target$ /* Location target observable */\nwindow.keyboard$ = keyboard$ /* Keyboard observable */\nwindow.viewport$ = viewport$ /* Viewport observable */\nwindow.tablet$ = tablet$ /* Media tablet observable */\nwindow.screen$ = screen$ /* Media screen observable */\nwindow.print$ = print$ /* Media print observable */\nwindow.alert$ = alert$ /* Alert subject */\nwindow.progress$ = progress$ /* Progress indicator subject */\nwindow.component$ = component$ /* Component observable */\n", "/*! *****************************************************************************\r\nCopyright (c) Microsoft Corporation.\r\n\r\nPermission to use, copy, modify, and/or distribute this software for any\r\npurpose with or without fee is hereby granted.\r\n\r\nTHE SOFTWARE IS PROVIDED \"AS IS\" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH\r\nREGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY\r\nAND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,\r\nINDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM\r\nLOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR\r\nOTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR\r\nPERFORMANCE OF THIS SOFTWARE.\r\n***************************************************************************** */\r\n/* global Reflect, Promise */\r\n\r\nvar extendStatics = function(d, b) {\r\n extendStatics = Object.setPrototypeOf ||\r\n ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||\r\n function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };\r\n return extendStatics(d, b);\r\n};\r\n\r\nexport function __extends(d, b) {\r\n if (typeof b !== \"function\" && b !== null)\r\n throw new TypeError(\"Class extends value \" + String(b) + \" is not a constructor or null\");\r\n extendStatics(d, b);\r\n function __() { this.constructor = d; }\r\n d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\r\n}\r\n\r\nexport var __assign = function() {\r\n __assign = Object.assign || function __assign(t) {\r\n for (var s, i = 1, n = arguments.length; i < n; i++) {\r\n s = arguments[i];\r\n for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p)) t[p] = s[p];\r\n }\r\n return t;\r\n }\r\n return __assign.apply(this, arguments);\r\n}\r\n\r\nexport function __rest(s, e) {\r\n var t = {};\r\n for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p) && e.indexOf(p) < 0)\r\n t[p] = s[p];\r\n if (s != null && typeof Object.getOwnPropertySymbols === \"function\")\r\n for (var i = 0, p = Object.getOwnPropertySymbols(s); i < p.length; i++) {\r\n if (e.indexOf(p[i]) < 0 && Object.prototype.propertyIsEnumerable.call(s, p[i]))\r\n t[p[i]] = s[p[i]];\r\n }\r\n return t;\r\n}\r\n\r\nexport function __decorate(decorators, target, key, desc) {\r\n var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;\r\n if (typeof Reflect === \"object\" && typeof Reflect.decorate === \"function\") r = Reflect.decorate(decorators, target, key, desc);\r\n else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;\r\n return c > 3 && r && Object.defineProperty(target, key, r), r;\r\n}\r\n\r\nexport function __param(paramIndex, decorator) {\r\n return function (target, key) { decorator(target, key, paramIndex); }\r\n}\r\n\r\nexport function __metadata(metadataKey, metadataValue) {\r\n if (typeof Reflect === \"object\" && typeof Reflect.metadata === \"function\") return Reflect.metadata(metadataKey, metadataValue);\r\n}\r\n\r\nexport function __awaiter(thisArg, _arguments, P, generator) {\r\n function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }\r\n return new (P || (P = Promise))(function (resolve, reject) {\r\n function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }\r\n function rejected(value) { try { step(generator[\"throw\"](value)); } catch (e) { reject(e); } }\r\n function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }\r\n step((generator = generator.apply(thisArg, _arguments || [])).next());\r\n });\r\n}\r\n\r\nexport function __generator(thisArg, body) {\r\n var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;\r\n return g = { next: verb(0), \"throw\": verb(1), \"return\": verb(2) }, typeof Symbol === \"function\" && (g[Symbol.iterator] = function() { return this; }), g;\r\n function verb(n) { return function (v) { return step([n, v]); }; }\r\n function step(op) {\r\n if (f) throw new TypeError(\"Generator is already executing.\");\r\n while (_) try {\r\n if (f = 1, y && (t = op[0] & 2 ? y[\"return\"] : op[0] ? y[\"throw\"] || ((t = y[\"return\"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;\r\n if (y = 0, t) op = [op[0] & 2, t.value];\r\n switch (op[0]) {\r\n case 0: case 1: t = op; break;\r\n case 4: _.label++; return { value: op[1], done: false };\r\n case 5: _.label++; y = op[1]; op = [0]; continue;\r\n case 7: op = _.ops.pop(); _.trys.pop(); continue;\r\n default:\r\n if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }\r\n if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }\r\n if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }\r\n if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }\r\n if (t[2]) _.ops.pop();\r\n _.trys.pop(); continue;\r\n }\r\n op = body.call(thisArg, _);\r\n } catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }\r\n if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };\r\n }\r\n}\r\n\r\nexport var __createBinding = Object.create ? (function(o, m, k, k2) {\r\n if (k2 === undefined) k2 = k;\r\n Object.defineProperty(o, k2, { enumerable: true, get: function() { return m[k]; } });\r\n}) : (function(o, m, k, k2) {\r\n if (k2 === undefined) k2 = k;\r\n o[k2] = m[k];\r\n});\r\n\r\nexport function __exportStar(m, o) {\r\n for (var p in m) if (p !== \"default\" && !Object.prototype.hasOwnProperty.call(o, p)) __createBinding(o, m, p);\r\n}\r\n\r\nexport function __values(o) {\r\n var s = typeof Symbol === \"function\" && Symbol.iterator, m = s && o[s], i = 0;\r\n if (m) return m.call(o);\r\n if (o && typeof o.length === \"number\") return {\r\n next: function () {\r\n if (o && i >= o.length) o = void 0;\r\n return { value: o && o[i++], done: !o };\r\n }\r\n };\r\n throw new TypeError(s ? \"Object is not iterable.\" : \"Symbol.iterator is not defined.\");\r\n}\r\n\r\nexport function __read(o, n) {\r\n var m = typeof Symbol === \"function\" && o[Symbol.iterator];\r\n if (!m) return o;\r\n var i = m.call(o), r, ar = [], e;\r\n try {\r\n while ((n === void 0 || n-- > 0) && !(r = i.next()).done) ar.push(r.value);\r\n }\r\n catch (error) { e = { error: error }; }\r\n finally {\r\n try {\r\n if (r && !r.done && (m = i[\"return\"])) m.call(i);\r\n }\r\n finally { if (e) throw e.error; }\r\n }\r\n return ar;\r\n}\r\n\r\n/** @deprecated */\r\nexport function __spread() {\r\n for (var ar = [], i = 0; i < arguments.length; i++)\r\n ar = ar.concat(__read(arguments[i]));\r\n return ar;\r\n}\r\n\r\n/** @deprecated */\r\nexport function __spreadArrays() {\r\n for (var s = 0, i = 0, il = arguments.length; i < il; i++) s += arguments[i].length;\r\n for (var r = Array(s), k = 0, i = 0; i < il; i++)\r\n for (var a = arguments[i], j = 0, jl = a.length; j < jl; j++, k++)\r\n r[k] = a[j];\r\n return r;\r\n}\r\n\r\nexport function __spreadArray(to, from, pack) {\r\n if (pack || arguments.length === 2) for (var i = 0, l = from.length, ar; i < l; i++) {\r\n if (ar || !(i in from)) {\r\n if (!ar) ar = Array.prototype.slice.call(from, 0, i);\r\n ar[i] = from[i];\r\n }\r\n }\r\n return to.concat(ar || Array.prototype.slice.call(from));\r\n}\r\n\r\nexport function __await(v) {\r\n return this instanceof __await ? (this.v = v, this) : new __await(v);\r\n}\r\n\r\nexport function __asyncGenerator(thisArg, _arguments, generator) {\r\n if (!Symbol.asyncIterator) throw new TypeError(\"Symbol.asyncIterator is not defined.\");\r\n var g = generator.apply(thisArg, _arguments || []), i, q = [];\r\n return i = {}, verb(\"next\"), verb(\"throw\"), verb(\"return\"), i[Symbol.asyncIterator] = function () { return this; }, i;\r\n function verb(n) { if (g[n]) i[n] = function (v) { return new Promise(function (a, b) { q.push([n, v, a, b]) > 1 || resume(n, v); }); }; }\r\n function resume(n, v) { try { step(g[n](v)); } catch (e) { settle(q[0][3], e); } }\r\n function step(r) { r.value instanceof __await ? Promise.resolve(r.value.v).then(fulfill, reject) : settle(q[0][2], r); }\r\n function fulfill(value) { resume(\"next\", value); }\r\n function reject(value) { resume(\"throw\", value); }\r\n function settle(f, v) { if (f(v), q.shift(), q.length) resume(q[0][0], q[0][1]); }\r\n}\r\n\r\nexport function __asyncDelegator(o) {\r\n var i, p;\r\n return i = {}, verb(\"next\"), verb(\"throw\", function (e) { throw e; }), verb(\"return\"), i[Symbol.iterator] = function () { return this; }, i;\r\n function verb(n, f) { i[n] = o[n] ? function (v) { return (p = !p) ? { value: __await(o[n](v)), done: n === \"return\" } : f ? f(v) : v; } : f; }\r\n}\r\n\r\nexport function __asyncValues(o) {\r\n if (!Symbol.asyncIterator) throw new TypeError(\"Symbol.asyncIterator is not defined.\");\r\n var m = o[Symbol.asyncIterator], i;\r\n return m ? m.call(o) : (o = typeof __values === \"function\" ? __values(o) : o[Symbol.iterator](), i = {}, verb(\"next\"), verb(\"throw\"), verb(\"return\"), i[Symbol.asyncIterator] = function () { return this; }, i);\r\n function verb(n) { i[n] = o[n] && function (v) { return new Promise(function (resolve, reject) { v = o[n](v), settle(resolve, reject, v.done, v.value); }); }; }\r\n function settle(resolve, reject, d, v) { Promise.resolve(v).then(function(v) { resolve({ value: v, done: d }); }, reject); }\r\n}\r\n\r\nexport function __makeTemplateObject(cooked, raw) {\r\n if (Object.defineProperty) { Object.defineProperty(cooked, \"raw\", { value: raw }); } else { cooked.raw = raw; }\r\n return cooked;\r\n};\r\n\r\nvar __setModuleDefault = Object.create ? (function(o, v) {\r\n Object.defineProperty(o, \"default\", { enumerable: true, value: v });\r\n}) : function(o, v) {\r\n o[\"default\"] = v;\r\n};\r\n\r\nexport function __importStar(mod) {\r\n if (mod && mod.__esModule) return mod;\r\n var result = {};\r\n if (mod != null) for (var k in mod) if (k !== \"default\" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);\r\n __setModuleDefault(result, mod);\r\n return result;\r\n}\r\n\r\nexport function __importDefault(mod) {\r\n return (mod && mod.__esModule) ? mod : { default: mod };\r\n}\r\n\r\nexport function __classPrivateFieldGet(receiver, state, kind, f) {\r\n if (kind === \"a\" && !f) throw new TypeError(\"Private accessor was defined without a getter\");\r\n if (typeof state === \"function\" ? receiver !== state || !f : !state.has(receiver)) throw new TypeError(\"Cannot read private member from an object whose class did not declare it\");\r\n return kind === \"m\" ? f : kind === \"a\" ? f.call(receiver) : f ? f.value : state.get(receiver);\r\n}\r\n\r\nexport function __classPrivateFieldSet(receiver, state, value, kind, f) {\r\n if (kind === \"m\") throw new TypeError(\"Private method is not writable\");\r\n if (kind === \"a\" && !f) throw new TypeError(\"Private accessor was defined without a setter\");\r\n if (typeof state === \"function\" ? receiver !== state || !f : !state.has(receiver)) throw new TypeError(\"Cannot write private member to an object whose class did not declare it\");\r\n return (kind === \"a\" ? f.call(receiver, value) : f ? f.value = value : state.set(receiver, value)), value;\r\n}\r\n", "/**\n * Returns true if the object is a function.\n * @param value The value to check\n */\nexport function isFunction(value: any): value is (...args: any[]) => any {\n return typeof value === 'function';\n}\n", "/**\n * Used to create Error subclasses until the community moves away from ES5.\n *\n * This is because compiling from TypeScript down to ES5 has issues with subclassing Errors\n * as well as other built-in types: https://github.com/Microsoft/TypeScript/issues/12123\n *\n * @param createImpl A factory function to create the actual constructor implementation. The returned\n * function should be a named function that calls `_super` internally.\n */\nexport function createErrorClass(createImpl: (_super: any) => any): T {\n const _super = (instance: any) => {\n Error.call(instance);\n instance.stack = new Error().stack;\n };\n\n const ctorFunc = createImpl(_super);\n ctorFunc.prototype = Object.create(Error.prototype);\n ctorFunc.prototype.constructor = ctorFunc;\n return ctorFunc;\n}\n", "import { createErrorClass } from './createErrorClass';\n\nexport interface UnsubscriptionError extends Error {\n readonly errors: any[];\n}\n\nexport interface UnsubscriptionErrorCtor {\n /**\n * @deprecated Internal implementation detail. Do not construct error instances.\n * Cannot be tagged as internal: https://github.com/ReactiveX/rxjs/issues/6269\n */\n new (errors: any[]): UnsubscriptionError;\n}\n\n/**\n * An error thrown when one or more errors have occurred during the\n * `unsubscribe` of a {@link Subscription}.\n */\nexport const UnsubscriptionError: UnsubscriptionErrorCtor = createErrorClass(\n (_super) =>\n function UnsubscriptionErrorImpl(this: any, errors: (Error | string)[]) {\n _super(this);\n this.message = errors\n ? `${errors.length} errors occurred during unsubscription:\n${errors.map((err, i) => `${i + 1}) ${err.toString()}`).join('\\n ')}`\n : '';\n this.name = 'UnsubscriptionError';\n this.errors = errors;\n }\n);\n", "/**\n * Removes an item from an array, mutating it.\n * @param arr The array to remove the item from\n * @param item The item to remove\n */\nexport function arrRemove(arr: T[] | undefined | null, item: T) {\n if (arr) {\n const index = arr.indexOf(item);\n 0 <= index && arr.splice(index, 1);\n }\n}\n", "import { isFunction } from './util/isFunction';\nimport { UnsubscriptionError } from './util/UnsubscriptionError';\nimport { SubscriptionLike, TeardownLogic, Unsubscribable } from './types';\nimport { arrRemove } from './util/arrRemove';\n\n/**\n * Represents a disposable resource, such as the execution of an Observable. A\n * Subscription has one important method, `unsubscribe`, that takes no argument\n * and just disposes the resource held by the subscription.\n *\n * Additionally, subscriptions may be grouped together through the `add()`\n * method, which will attach a child Subscription to the current Subscription.\n * When a Subscription is unsubscribed, all its children (and its grandchildren)\n * will be unsubscribed as well.\n *\n * @class Subscription\n */\nexport class Subscription implements SubscriptionLike {\n /** @nocollapse */\n public static EMPTY = (() => {\n const empty = new Subscription();\n empty.closed = true;\n return empty;\n })();\n\n /**\n * A flag to indicate whether this Subscription has already been unsubscribed.\n */\n public closed = false;\n\n private _parentage: Subscription[] | Subscription | null = null;\n\n /**\n * The list of registered finalizers to execute upon unsubscription. Adding and removing from this\n * list occurs in the {@link #add} and {@link #remove} methods.\n */\n private _finalizers: Exclude[] | null = null;\n\n /**\n * @param initialTeardown A function executed first as part of the finalization\n * process that is kicked off when {@link #unsubscribe} is called.\n */\n constructor(private initialTeardown?: () => void) {}\n\n /**\n * Disposes the resources held by the subscription. May, for instance, cancel\n * an ongoing Observable execution or cancel any other type of work that\n * started when the Subscription was created.\n * @return {void}\n */\n unsubscribe(): void {\n let errors: any[] | undefined;\n\n if (!this.closed) {\n this.closed = true;\n\n // Remove this from it's parents.\n const { _parentage } = this;\n if (_parentage) {\n this._parentage = null;\n if (Array.isArray(_parentage)) {\n for (const parent of _parentage) {\n parent.remove(this);\n }\n } else {\n _parentage.remove(this);\n }\n }\n\n const { initialTeardown: initialFinalizer } = this;\n if (isFunction(initialFinalizer)) {\n try {\n initialFinalizer();\n } catch (e) {\n errors = e instanceof UnsubscriptionError ? e.errors : [e];\n }\n }\n\n const { _finalizers } = this;\n if (_finalizers) {\n this._finalizers = null;\n for (const finalizer of _finalizers) {\n try {\n execFinalizer(finalizer);\n } catch (err) {\n errors = errors ?? [];\n if (err instanceof UnsubscriptionError) {\n errors = [...errors, ...err.errors];\n } else {\n errors.push(err);\n }\n }\n }\n }\n\n if (errors) {\n throw new UnsubscriptionError(errors);\n }\n }\n }\n\n /**\n * Adds a finalizer to this subscription, so that finalization will be unsubscribed/called\n * when this subscription is unsubscribed. If this subscription is already {@link #closed},\n * because it has already been unsubscribed, then whatever finalizer is passed to it\n * will automatically be executed (unless the finalizer itself is also a closed subscription).\n *\n * Closed Subscriptions cannot be added as finalizers to any subscription. Adding a closed\n * subscription to a any subscription will result in no operation. (A noop).\n *\n * Adding a subscription to itself, or adding `null` or `undefined` will not perform any\n * operation at all. (A noop).\n *\n * `Subscription` instances that are added to this instance will automatically remove themselves\n * if they are unsubscribed. Functions and {@link Unsubscribable} objects that you wish to remove\n * will need to be removed manually with {@link #remove}\n *\n * @param teardown The finalization logic to add to this subscription.\n */\n add(teardown: TeardownLogic): void {\n // Only add the finalizer if it's not undefined\n // and don't add a subscription to itself.\n if (teardown && teardown !== this) {\n if (this.closed) {\n // If this subscription is already closed,\n // execute whatever finalizer is handed to it automatically.\n execFinalizer(teardown);\n } else {\n if (teardown instanceof Subscription) {\n // We don't add closed subscriptions, and we don't add the same subscription\n // twice. Subscription unsubscribe is idempotent.\n if (teardown.closed || teardown._hasParent(this)) {\n return;\n }\n teardown._addParent(this);\n }\n (this._finalizers = this._finalizers ?? []).push(teardown);\n }\n }\n }\n\n /**\n * Checks to see if a this subscription already has a particular parent.\n * This will signal that this subscription has already been added to the parent in question.\n * @param parent the parent to check for\n */\n private _hasParent(parent: Subscription) {\n const { _parentage } = this;\n return _parentage === parent || (Array.isArray(_parentage) && _parentage.includes(parent));\n }\n\n /**\n * Adds a parent to this subscription so it can be removed from the parent if it\n * unsubscribes on it's own.\n *\n * NOTE: THIS ASSUMES THAT {@link _hasParent} HAS ALREADY BEEN CHECKED.\n * @param parent The parent subscription to add\n */\n private _addParent(parent: Subscription) {\n const { _parentage } = this;\n this._parentage = Array.isArray(_parentage) ? (_parentage.push(parent), _parentage) : _parentage ? [_parentage, parent] : parent;\n }\n\n /**\n * Called on a child when it is removed via {@link #remove}.\n * @param parent The parent to remove\n */\n private _removeParent(parent: Subscription) {\n const { _parentage } = this;\n if (_parentage === parent) {\n this._parentage = null;\n } else if (Array.isArray(_parentage)) {\n arrRemove(_parentage, parent);\n }\n }\n\n /**\n * Removes a finalizer from this subscription that was previously added with the {@link #add} method.\n *\n * Note that `Subscription` instances, when unsubscribed, will automatically remove themselves\n * from every other `Subscription` they have been added to. This means that using the `remove` method\n * is not a common thing and should be used thoughtfully.\n *\n * If you add the same finalizer instance of a function or an unsubscribable object to a `Subscription` instance\n * more than once, you will need to call `remove` the same number of times to remove all instances.\n *\n * All finalizer instances are removed to free up memory upon unsubscription.\n *\n * @param teardown The finalizer to remove from this subscription\n */\n remove(teardown: Exclude): void {\n const { _finalizers } = this;\n _finalizers && arrRemove(_finalizers, teardown);\n\n if (teardown instanceof Subscription) {\n teardown._removeParent(this);\n }\n }\n}\n\nexport const EMPTY_SUBSCRIPTION = Subscription.EMPTY;\n\nexport function isSubscription(value: any): value is Subscription {\n return (\n value instanceof Subscription ||\n (value && 'closed' in value && isFunction(value.remove) && isFunction(value.add) && isFunction(value.unsubscribe))\n );\n}\n\nfunction execFinalizer(finalizer: Unsubscribable | (() => void)) {\n if (isFunction(finalizer)) {\n finalizer();\n } else {\n finalizer.unsubscribe();\n }\n}\n", "import { Subscriber } from './Subscriber';\nimport { ObservableNotification } from './types';\n\n/**\n * The {@link GlobalConfig} object for RxJS. It is used to configure things\n * like how to react on unhandled errors.\n */\nexport const config: GlobalConfig = {\n onUnhandledError: null,\n onStoppedNotification: null,\n Promise: undefined,\n useDeprecatedSynchronousErrorHandling: false,\n useDeprecatedNextContext: false,\n};\n\n/**\n * The global configuration object for RxJS, used to configure things\n * like how to react on unhandled errors. Accessible via {@link config}\n * object.\n */\nexport interface GlobalConfig {\n /**\n * A registration point for unhandled errors from RxJS. These are errors that\n * cannot were not handled by consuming code in the usual subscription path. For\n * example, if you have this configured, and you subscribe to an observable without\n * providing an error handler, errors from that subscription will end up here. This\n * will _always_ be called asynchronously on another job in the runtime. This is because\n * we do not want errors thrown in this user-configured handler to interfere with the\n * behavior of the library.\n */\n onUnhandledError: ((err: any) => void) | null;\n\n /**\n * A registration point for notifications that cannot be sent to subscribers because they\n * have completed, errored or have been explicitly unsubscribed. By default, next, complete\n * and error notifications sent to stopped subscribers are noops. However, sometimes callers\n * might want a different behavior. For example, with sources that attempt to report errors\n * to stopped subscribers, a caller can configure RxJS to throw an unhandled error instead.\n * This will _always_ be called asynchronously on another job in the runtime. This is because\n * we do not want errors thrown in this user-configured handler to interfere with the\n * behavior of the library.\n */\n onStoppedNotification: ((notification: ObservableNotification, subscriber: Subscriber) => void) | null;\n\n /**\n * The promise constructor used by default for {@link Observable#toPromise toPromise} and {@link Observable#forEach forEach}\n * methods.\n *\n * @deprecated As of version 8, RxJS will no longer support this sort of injection of a\n * Promise constructor. If you need a Promise implementation other than native promises,\n * please polyfill/patch Promise as you see appropriate. Will be removed in v8.\n */\n Promise?: PromiseConstructorLike;\n\n /**\n * If true, turns on synchronous error rethrowing, which is a deprecated behavior\n * in v6 and higher. This behavior enables bad patterns like wrapping a subscribe\n * call in a try/catch block. It also enables producer interference, a nasty bug\n * where a multicast can be broken for all observers by a downstream consumer with\n * an unhandled error. DO NOT USE THIS FLAG UNLESS IT'S NEEDED TO BUY TIME\n * FOR MIGRATION REASONS.\n *\n * @deprecated As of version 8, RxJS will no longer support synchronous throwing\n * of unhandled errors. All errors will be thrown on a separate call stack to prevent bad\n * behaviors described above. Will be removed in v8.\n */\n useDeprecatedSynchronousErrorHandling: boolean;\n\n /**\n * If true, enables an as-of-yet undocumented feature from v5: The ability to access\n * `unsubscribe()` via `this` context in `next` functions created in observers passed\n * to `subscribe`.\n *\n * This is being removed because the performance was severely problematic, and it could also cause\n * issues when types other than POJOs are passed to subscribe as subscribers, as they will likely have\n * their `this` context overwritten.\n *\n * @deprecated As of version 8, RxJS will no longer support altering the\n * context of next functions provided as part of an observer to Subscribe. Instead,\n * you will have access to a subscription or a signal or token that will allow you to do things like\n * unsubscribe and test closed status. Will be removed in v8.\n */\n useDeprecatedNextContext: boolean;\n}\n", "import type { TimerHandle } from './timerHandle';\ntype SetTimeoutFunction = (handler: () => void, timeout?: number, ...args: any[]) => TimerHandle;\ntype ClearTimeoutFunction = (handle: TimerHandle) => void;\n\ninterface TimeoutProvider {\n setTimeout: SetTimeoutFunction;\n clearTimeout: ClearTimeoutFunction;\n delegate:\n | {\n setTimeout: SetTimeoutFunction;\n clearTimeout: ClearTimeoutFunction;\n }\n | undefined;\n}\n\nexport const timeoutProvider: TimeoutProvider = {\n // When accessing the delegate, use the variable rather than `this` so that\n // the functions can be called without being bound to the provider.\n setTimeout(handler: () => void, timeout?: number, ...args) {\n const { delegate } = timeoutProvider;\n if (delegate?.setTimeout) {\n return delegate.setTimeout(handler, timeout, ...args);\n }\n return setTimeout(handler, timeout, ...args);\n },\n clearTimeout(handle) {\n const { delegate } = timeoutProvider;\n return (delegate?.clearTimeout || clearTimeout)(handle as any);\n },\n delegate: undefined,\n};\n", "import { config } from '../config';\nimport { timeoutProvider } from '../scheduler/timeoutProvider';\n\n/**\n * Handles an error on another job either with the user-configured {@link onUnhandledError},\n * or by throwing it on that new job so it can be picked up by `window.onerror`, `process.on('error')`, etc.\n *\n * This should be called whenever there is an error that is out-of-band with the subscription\n * or when an error hits a terminal boundary of the subscription and no error handler was provided.\n *\n * @param err the error to report\n */\nexport function reportUnhandledError(err: any) {\n timeoutProvider.setTimeout(() => {\n const { onUnhandledError } = config;\n if (onUnhandledError) {\n // Execute the user-configured error handler.\n onUnhandledError(err);\n } else {\n // Throw so it is picked up by the runtime's uncaught error mechanism.\n throw err;\n }\n });\n}\n", "/* tslint:disable:no-empty */\nexport function noop() { }\n", "import { CompleteNotification, NextNotification, ErrorNotification } from './types';\n\n/**\n * A completion object optimized for memory use and created to be the\n * same \"shape\" as other notifications in v8.\n * @internal\n */\nexport const COMPLETE_NOTIFICATION = (() => createNotification('C', undefined, undefined) as CompleteNotification)();\n\n/**\n * Internal use only. Creates an optimized error notification that is the same \"shape\"\n * as other notifications.\n * @internal\n */\nexport function errorNotification(error: any): ErrorNotification {\n return createNotification('E', undefined, error) as any;\n}\n\n/**\n * Internal use only. Creates an optimized next notification that is the same \"shape\"\n * as other notifications.\n * @internal\n */\nexport function nextNotification(value: T) {\n return createNotification('N', value, undefined) as NextNotification;\n}\n\n/**\n * Ensures that all notifications created internally have the same \"shape\" in v8.\n *\n * TODO: This is only exported to support a crazy legacy test in `groupBy`.\n * @internal\n */\nexport function createNotification(kind: 'N' | 'E' | 'C', value: any, error: any) {\n return {\n kind,\n value,\n error,\n };\n}\n", "import { config } from '../config';\n\nlet context: { errorThrown: boolean; error: any } | null = null;\n\n/**\n * Handles dealing with errors for super-gross mode. Creates a context, in which\n * any synchronously thrown errors will be passed to {@link captureError}. Which\n * will record the error such that it will be rethrown after the call back is complete.\n * TODO: Remove in v8\n * @param cb An immediately executed function.\n */\nexport function errorContext(cb: () => void) {\n if (config.useDeprecatedSynchronousErrorHandling) {\n const isRoot = !context;\n if (isRoot) {\n context = { errorThrown: false, error: null };\n }\n cb();\n if (isRoot) {\n const { errorThrown, error } = context!;\n context = null;\n if (errorThrown) {\n throw error;\n }\n }\n } else {\n // This is the general non-deprecated path for everyone that\n // isn't crazy enough to use super-gross mode (useDeprecatedSynchronousErrorHandling)\n cb();\n }\n}\n\n/**\n * Captures errors only in super-gross mode.\n * @param err the error to capture\n */\nexport function captureError(err: any) {\n if (config.useDeprecatedSynchronousErrorHandling && context) {\n context.errorThrown = true;\n context.error = err;\n }\n}\n", "import { isFunction } from './util/isFunction';\nimport { Observer, ObservableNotification } from './types';\nimport { isSubscription, Subscription } from './Subscription';\nimport { config } from './config';\nimport { reportUnhandledError } from './util/reportUnhandledError';\nimport { noop } from './util/noop';\nimport { nextNotification, errorNotification, COMPLETE_NOTIFICATION } from './NotificationFactories';\nimport { timeoutProvider } from './scheduler/timeoutProvider';\nimport { captureError } from './util/errorContext';\n\n/**\n * Implements the {@link Observer} interface and extends the\n * {@link Subscription} class. While the {@link Observer} is the public API for\n * consuming the values of an {@link Observable}, all Observers get converted to\n * a Subscriber, in order to provide Subscription-like capabilities such as\n * `unsubscribe`. Subscriber is a common type in RxJS, and crucial for\n * implementing operators, but it is rarely used as a public API.\n *\n * @class Subscriber\n */\nexport class Subscriber extends Subscription implements Observer {\n /**\n * A static factory for a Subscriber, given a (potentially partial) definition\n * of an Observer.\n * @param next The `next` callback of an Observer.\n * @param error The `error` callback of an\n * Observer.\n * @param complete The `complete` callback of an\n * Observer.\n * @return A Subscriber wrapping the (partially defined)\n * Observer represented by the given arguments.\n * @nocollapse\n * @deprecated Do not use. Will be removed in v8. There is no replacement for this\n * method, and there is no reason to be creating instances of `Subscriber` directly.\n * If you have a specific use case, please file an issue.\n */\n static create(next?: (x?: T) => void, error?: (e?: any) => void, complete?: () => void): Subscriber {\n return new SafeSubscriber(next, error, complete);\n }\n\n /** @deprecated Internal implementation detail, do not use directly. Will be made internal in v8. */\n protected isStopped: boolean = false;\n /** @deprecated Internal implementation detail, do not use directly. Will be made internal in v8. */\n protected destination: Subscriber | Observer; // this `any` is the escape hatch to erase extra type param (e.g. R)\n\n /**\n * @deprecated Internal implementation detail, do not use directly. Will be made internal in v8.\n * There is no reason to directly create an instance of Subscriber. This type is exported for typings reasons.\n */\n constructor(destination?: Subscriber | Observer) {\n super();\n if (destination) {\n this.destination = destination;\n // Automatically chain subscriptions together here.\n // if destination is a Subscription, then it is a Subscriber.\n if (isSubscription(destination)) {\n destination.add(this);\n }\n } else {\n this.destination = EMPTY_OBSERVER;\n }\n }\n\n /**\n * The {@link Observer} callback to receive notifications of type `next` from\n * the Observable, with a value. The Observable may call this method 0 or more\n * times.\n * @param {T} [value] The `next` value.\n * @return {void}\n */\n next(value?: T): void {\n if (this.isStopped) {\n handleStoppedNotification(nextNotification(value), this);\n } else {\n this._next(value!);\n }\n }\n\n /**\n * The {@link Observer} callback to receive notifications of type `error` from\n * the Observable, with an attached `Error`. Notifies the Observer that\n * the Observable has experienced an error condition.\n * @param {any} [err] The `error` exception.\n * @return {void}\n */\n error(err?: any): void {\n if (this.isStopped) {\n handleStoppedNotification(errorNotification(err), this);\n } else {\n this.isStopped = true;\n this._error(err);\n }\n }\n\n /**\n * The {@link Observer} callback to receive a valueless notification of type\n * `complete` from the Observable. Notifies the Observer that the Observable\n * has finished sending push-based notifications.\n * @return {void}\n */\n complete(): void {\n if (this.isStopped) {\n handleStoppedNotification(COMPLETE_NOTIFICATION, this);\n } else {\n this.isStopped = true;\n this._complete();\n }\n }\n\n unsubscribe(): void {\n if (!this.closed) {\n this.isStopped = true;\n super.unsubscribe();\n this.destination = null!;\n }\n }\n\n protected _next(value: T): void {\n this.destination.next(value);\n }\n\n protected _error(err: any): void {\n try {\n this.destination.error(err);\n } finally {\n this.unsubscribe();\n }\n }\n\n protected _complete(): void {\n try {\n this.destination.complete();\n } finally {\n this.unsubscribe();\n }\n }\n}\n\n/**\n * This bind is captured here because we want to be able to have\n * compatibility with monoid libraries that tend to use a method named\n * `bind`. In particular, a library called Monio requires this.\n */\nconst _bind = Function.prototype.bind;\n\nfunction bind any>(fn: Fn, thisArg: any): Fn {\n return _bind.call(fn, thisArg);\n}\n\n/**\n * Internal optimization only, DO NOT EXPOSE.\n * @internal\n */\nclass ConsumerObserver implements Observer {\n constructor(private partialObserver: Partial>) {}\n\n next(value: T): void {\n const { partialObserver } = this;\n if (partialObserver.next) {\n try {\n partialObserver.next(value);\n } catch (error) {\n handleUnhandledError(error);\n }\n }\n }\n\n error(err: any): void {\n const { partialObserver } = this;\n if (partialObserver.error) {\n try {\n partialObserver.error(err);\n } catch (error) {\n handleUnhandledError(error);\n }\n } else {\n handleUnhandledError(err);\n }\n }\n\n complete(): void {\n const { partialObserver } = this;\n if (partialObserver.complete) {\n try {\n partialObserver.complete();\n } catch (error) {\n handleUnhandledError(error);\n }\n }\n }\n}\n\nexport class SafeSubscriber extends Subscriber {\n constructor(\n observerOrNext?: Partial> | ((value: T) => void) | null,\n error?: ((e?: any) => void) | null,\n complete?: (() => void) | null\n ) {\n super();\n\n let partialObserver: Partial>;\n if (isFunction(observerOrNext) || !observerOrNext) {\n // The first argument is a function, not an observer. The next\n // two arguments *could* be observers, or they could be empty.\n partialObserver = {\n next: (observerOrNext ?? undefined) as (((value: T) => void) | undefined),\n error: error ?? undefined,\n complete: complete ?? undefined,\n };\n } else {\n // The first argument is a partial observer.\n let context: any;\n if (this && config.useDeprecatedNextContext) {\n // This is a deprecated path that made `this.unsubscribe()` available in\n // next handler functions passed to subscribe. This only exists behind a flag\n // now, as it is *very* slow.\n context = Object.create(observerOrNext);\n context.unsubscribe = () => this.unsubscribe();\n partialObserver = {\n next: observerOrNext.next && bind(observerOrNext.next, context),\n error: observerOrNext.error && bind(observerOrNext.error, context),\n complete: observerOrNext.complete && bind(observerOrNext.complete, context),\n };\n } else {\n // The \"normal\" path. Just use the partial observer directly.\n partialObserver = observerOrNext;\n }\n }\n\n // Wrap the partial observer to ensure it's a full observer, and\n // make sure proper error handling is accounted for.\n this.destination = new ConsumerObserver(partialObserver);\n }\n}\n\nfunction handleUnhandledError(error: any) {\n if (config.useDeprecatedSynchronousErrorHandling) {\n captureError(error);\n } else {\n // Ideal path, we report this as an unhandled error,\n // which is thrown on a new call stack.\n reportUnhandledError(error);\n }\n}\n\n/**\n * An error handler used when no error handler was supplied\n * to the SafeSubscriber -- meaning no error handler was supplied\n * do the `subscribe` call on our observable.\n * @param err The error to handle\n */\nfunction defaultErrorHandler(err: any) {\n throw err;\n}\n\n/**\n * A handler for notifications that cannot be sent to a stopped subscriber.\n * @param notification The notification being sent\n * @param subscriber The stopped subscriber\n */\nfunction handleStoppedNotification(notification: ObservableNotification, subscriber: Subscriber) {\n const { onStoppedNotification } = config;\n onStoppedNotification && timeoutProvider.setTimeout(() => onStoppedNotification(notification, subscriber));\n}\n\n/**\n * The observer used as a stub for subscriptions where the user did not\n * pass any arguments to `subscribe`. Comes with the default error handling\n * behavior.\n */\nexport const EMPTY_OBSERVER: Readonly> & { closed: true } = {\n closed: true,\n next: noop,\n error: defaultErrorHandler,\n complete: noop,\n};\n", "/**\n * Symbol.observable or a string \"@@observable\". Used for interop\n *\n * @deprecated We will no longer be exporting this symbol in upcoming versions of RxJS.\n * Instead polyfill and use Symbol.observable directly *or* use https://www.npmjs.com/package/symbol-observable\n */\nexport const observable: string | symbol = (() => (typeof Symbol === 'function' && Symbol.observable) || '@@observable')();\n", "/**\n * This function takes one parameter and just returns it. Simply put,\n * this is like `(x: T): T => x`.\n *\n * ## Examples\n *\n * This is useful in some cases when using things like `mergeMap`\n *\n * ```ts\n * import { interval, take, map, range, mergeMap, identity } from 'rxjs';\n *\n * const source$ = interval(1000).pipe(take(5));\n *\n * const result$ = source$.pipe(\n * map(i => range(i)),\n * mergeMap(identity) // same as mergeMap(x => x)\n * );\n *\n * result$.subscribe({\n * next: console.log\n * });\n * ```\n *\n * Or when you want to selectively apply an operator\n *\n * ```ts\n * import { interval, take, identity } from 'rxjs';\n *\n * const shouldLimit = () => Math.random() < 0.5;\n *\n * const source$ = interval(1000);\n *\n * const result$ = source$.pipe(shouldLimit() ? take(5) : identity);\n *\n * result$.subscribe({\n * next: console.log\n * });\n * ```\n *\n * @param x Any value that is returned by this function\n * @returns The value passed as the first parameter to this function\n */\nexport function identity(x: T): T {\n return x;\n}\n", "import { identity } from './identity';\nimport { UnaryFunction } from '../types';\n\nexport function pipe(): typeof identity;\nexport function pipe(fn1: UnaryFunction): UnaryFunction;\nexport function pipe(fn1: UnaryFunction, fn2: UnaryFunction): UnaryFunction;\nexport function pipe(fn1: UnaryFunction, fn2: UnaryFunction, fn3: UnaryFunction): UnaryFunction;\nexport function pipe(\n fn1: UnaryFunction,\n fn2: UnaryFunction,\n fn3: UnaryFunction,\n fn4: UnaryFunction\n): UnaryFunction;\nexport function pipe(\n fn1: UnaryFunction,\n fn2: UnaryFunction,\n fn3: UnaryFunction,\n fn4: UnaryFunction,\n fn5: UnaryFunction\n): UnaryFunction;\nexport function pipe(\n fn1: UnaryFunction,\n fn2: UnaryFunction,\n fn3: UnaryFunction,\n fn4: UnaryFunction,\n fn5: UnaryFunction,\n fn6: UnaryFunction\n): UnaryFunction;\nexport function pipe(\n fn1: UnaryFunction,\n fn2: UnaryFunction,\n fn3: UnaryFunction,\n fn4: UnaryFunction,\n fn5: UnaryFunction,\n fn6: UnaryFunction,\n fn7: UnaryFunction\n): UnaryFunction;\nexport function pipe(\n fn1: UnaryFunction,\n fn2: UnaryFunction,\n fn3: UnaryFunction,\n fn4: UnaryFunction,\n fn5: UnaryFunction,\n fn6: UnaryFunction,\n fn7: UnaryFunction,\n fn8: UnaryFunction\n): UnaryFunction;\nexport function pipe(\n fn1: UnaryFunction,\n fn2: UnaryFunction,\n fn3: UnaryFunction,\n fn4: UnaryFunction,\n fn5: UnaryFunction,\n fn6: UnaryFunction,\n fn7: UnaryFunction,\n fn8: UnaryFunction,\n fn9: UnaryFunction\n): UnaryFunction;\nexport function pipe(\n fn1: UnaryFunction,\n fn2: UnaryFunction,\n fn3: UnaryFunction,\n fn4: UnaryFunction,\n fn5: UnaryFunction,\n fn6: UnaryFunction,\n fn7: UnaryFunction,\n fn8: UnaryFunction,\n fn9: UnaryFunction,\n ...fns: UnaryFunction[]\n): UnaryFunction;\n\n/**\n * pipe() can be called on one or more functions, each of which can take one argument (\"UnaryFunction\")\n * and uses it to return a value.\n * It returns a function that takes one argument, passes it to the first UnaryFunction, and then\n * passes the result to the next one, passes that result to the next one, and so on. \n */\nexport function pipe(...fns: Array>): UnaryFunction {\n return pipeFromArray(fns);\n}\n\n/** @internal */\nexport function pipeFromArray(fns: Array>): UnaryFunction {\n if (fns.length === 0) {\n return identity as UnaryFunction;\n }\n\n if (fns.length === 1) {\n return fns[0];\n }\n\n return function piped(input: T): R {\n return fns.reduce((prev: any, fn: UnaryFunction) => fn(prev), input as any);\n };\n}\n", "import { Operator } from './Operator';\nimport { SafeSubscriber, Subscriber } from './Subscriber';\nimport { isSubscription, Subscription } from './Subscription';\nimport { TeardownLogic, OperatorFunction, Subscribable, Observer } from './types';\nimport { observable as Symbol_observable } from './symbol/observable';\nimport { pipeFromArray } from './util/pipe';\nimport { config } from './config';\nimport { isFunction } from './util/isFunction';\nimport { errorContext } from './util/errorContext';\n\n/**\n * A representation of any set of values over any amount of time. This is the most basic building block\n * of RxJS.\n *\n * @class Observable\n */\nexport class Observable implements Subscribable {\n /**\n * @deprecated Internal implementation detail, do not use directly. Will be made internal in v8.\n */\n source: Observable | undefined;\n\n /**\n * @deprecated Internal implementation detail, do not use directly. Will be made internal in v8.\n */\n operator: Operator | undefined;\n\n /**\n * @constructor\n * @param {Function} subscribe the function that is called when the Observable is\n * initially subscribed to. This function is given a Subscriber, to which new values\n * can be `next`ed, or an `error` method can be called to raise an error, or\n * `complete` can be called to notify of a successful completion.\n */\n constructor(subscribe?: (this: Observable, subscriber: Subscriber) => TeardownLogic) {\n if (subscribe) {\n this._subscribe = subscribe;\n }\n }\n\n // HACK: Since TypeScript inherits static properties too, we have to\n // fight against TypeScript here so Subject can have a different static create signature\n /**\n * Creates a new Observable by calling the Observable constructor\n * @owner Observable\n * @method create\n * @param {Function} subscribe? the subscriber function to be passed to the Observable constructor\n * @return {Observable} a new observable\n * @nocollapse\n * @deprecated Use `new Observable()` instead. Will be removed in v8.\n */\n static create: (...args: any[]) => any = (subscribe?: (subscriber: Subscriber) => TeardownLogic) => {\n return new Observable(subscribe);\n };\n\n /**\n * Creates a new Observable, with this Observable instance as the source, and the passed\n * operator defined as the new observable's operator.\n * @method lift\n * @param operator the operator defining the operation to take on the observable\n * @return a new observable with the Operator applied\n * @deprecated Internal implementation detail, do not use directly. Will be made internal in v8.\n * If you have implemented an operator using `lift`, it is recommended that you create an\n * operator by simply returning `new Observable()` directly. See \"Creating new operators from\n * scratch\" section here: https://rxjs.dev/guide/operators\n */\n lift(operator?: Operator): Observable {\n const observable = new Observable();\n observable.source = this;\n observable.operator = operator;\n return observable;\n }\n\n subscribe(observerOrNext?: Partial> | ((value: T) => void)): Subscription;\n /** @deprecated Instead of passing separate callback arguments, use an observer argument. Signatures taking separate callback arguments will be removed in v8. Details: https://rxjs.dev/deprecations/subscribe-arguments */\n subscribe(next?: ((value: T) => void) | null, error?: ((error: any) => void) | null, complete?: (() => void) | null): Subscription;\n /**\n * Invokes an execution of an Observable and registers Observer handlers for notifications it will emit.\n *\n * Use it when you have all these Observables, but still nothing is happening.\n *\n * `subscribe` is not a regular operator, but a method that calls Observable's internal `subscribe` function. It\n * might be for example a function that you passed to Observable's constructor, but most of the time it is\n * a library implementation, which defines what will be emitted by an Observable, and when it be will emitted. This means\n * that calling `subscribe` is actually the moment when Observable starts its work, not when it is created, as it is often\n * the thought.\n *\n * Apart from starting the execution of an Observable, this method allows you to listen for values\n * that an Observable emits, as well as for when it completes or errors. You can achieve this in two\n * of the following ways.\n *\n * The first way is creating an object that implements {@link Observer} interface. It should have methods\n * defined by that interface, but note that it should be just a regular JavaScript object, which you can create\n * yourself in any way you want (ES6 class, classic function constructor, object literal etc.). In particular, do\n * not attempt to use any RxJS implementation details to create Observers - you don't need them. Remember also\n * that your object does not have to implement all methods. If you find yourself creating a method that doesn't\n * do anything, you can simply omit it. Note however, if the `error` method is not provided and an error happens,\n * it will be thrown asynchronously. Errors thrown asynchronously cannot be caught using `try`/`catch`. Instead,\n * use the {@link onUnhandledError} configuration option or use a runtime handler (like `window.onerror` or\n * `process.on('error)`) to be notified of unhandled errors. Because of this, it's recommended that you provide\n * an `error` method to avoid missing thrown errors.\n *\n * The second way is to give up on Observer object altogether and simply provide callback functions in place of its methods.\n * This means you can provide three functions as arguments to `subscribe`, where the first function is equivalent\n * of a `next` method, the second of an `error` method and the third of a `complete` method. Just as in case of an Observer,\n * if you do not need to listen for something, you can omit a function by passing `undefined` or `null`,\n * since `subscribe` recognizes these functions by where they were placed in function call. When it comes\n * to the `error` function, as with an Observer, if not provided, errors emitted by an Observable will be thrown asynchronously.\n *\n * You can, however, subscribe with no parameters at all. This may be the case where you're not interested in terminal events\n * and you also handled emissions internally by using operators (e.g. using `tap`).\n *\n * Whichever style of calling `subscribe` you use, in both cases it returns a Subscription object.\n * This object allows you to call `unsubscribe` on it, which in turn will stop the work that an Observable does and will clean\n * up all resources that an Observable used. Note that cancelling a subscription will not call `complete` callback\n * provided to `subscribe` function, which is reserved for a regular completion signal that comes from an Observable.\n *\n * Remember that callbacks provided to `subscribe` are not guaranteed to be called asynchronously.\n * It is an Observable itself that decides when these functions will be called. For example {@link of}\n * by default emits all its values synchronously. Always check documentation for how given Observable\n * will behave when subscribed and if its default behavior can be modified with a `scheduler`.\n *\n * #### Examples\n *\n * Subscribe with an {@link guide/observer Observer}\n *\n * ```ts\n * import { of } from 'rxjs';\n *\n * const sumObserver = {\n * sum: 0,\n * next(value) {\n * console.log('Adding: ' + value);\n * this.sum = this.sum + value;\n * },\n * error() {\n * // We actually could just remove this method,\n * // since we do not really care about errors right now.\n * },\n * complete() {\n * console.log('Sum equals: ' + this.sum);\n * }\n * };\n *\n * of(1, 2, 3) // Synchronously emits 1, 2, 3 and then completes.\n * .subscribe(sumObserver);\n *\n * // Logs:\n * // 'Adding: 1'\n * // 'Adding: 2'\n * // 'Adding: 3'\n * // 'Sum equals: 6'\n * ```\n *\n * Subscribe with functions ({@link deprecations/subscribe-arguments deprecated})\n *\n * ```ts\n * import { of } from 'rxjs'\n *\n * let sum = 0;\n *\n * of(1, 2, 3).subscribe(\n * value => {\n * console.log('Adding: ' + value);\n * sum = sum + value;\n * },\n * undefined,\n * () => console.log('Sum equals: ' + sum)\n * );\n *\n * // Logs:\n * // 'Adding: 1'\n * // 'Adding: 2'\n * // 'Adding: 3'\n * // 'Sum equals: 6'\n * ```\n *\n * Cancel a subscription\n *\n * ```ts\n * import { interval } from 'rxjs';\n *\n * const subscription = interval(1000).subscribe({\n * next(num) {\n * console.log(num)\n * },\n * complete() {\n * // Will not be called, even when cancelling subscription.\n * console.log('completed!');\n * }\n * });\n *\n * setTimeout(() => {\n * subscription.unsubscribe();\n * console.log('unsubscribed!');\n * }, 2500);\n *\n * // Logs:\n * // 0 after 1s\n * // 1 after 2s\n * // 'unsubscribed!' after 2.5s\n * ```\n *\n * @param {Observer|Function} observerOrNext (optional) Either an observer with methods to be called,\n * or the first of three possible handlers, which is the handler for each value emitted from the subscribed\n * Observable.\n * @param {Function} error (optional) A handler for a terminal event resulting from an error. If no error handler is provided,\n * the error will be thrown asynchronously as unhandled.\n * @param {Function} complete (optional) A handler for a terminal event resulting from successful completion.\n * @return {Subscription} a subscription reference to the registered handlers\n * @method subscribe\n */\n subscribe(\n observerOrNext?: Partial> | ((value: T) => void) | null,\n error?: ((error: any) => void) | null,\n complete?: (() => void) | null\n ): Subscription {\n const subscriber = isSubscriber(observerOrNext) ? observerOrNext : new SafeSubscriber(observerOrNext, error, complete);\n\n errorContext(() => {\n const { operator, source } = this;\n subscriber.add(\n operator\n ? // We're dealing with a subscription in the\n // operator chain to one of our lifted operators.\n operator.call(subscriber, source)\n : source\n ? // If `source` has a value, but `operator` does not, something that\n // had intimate knowledge of our API, like our `Subject`, must have\n // set it. We're going to just call `_subscribe` directly.\n this._subscribe(subscriber)\n : // In all other cases, we're likely wrapping a user-provided initializer\n // function, so we need to catch errors and handle them appropriately.\n this._trySubscribe(subscriber)\n );\n });\n\n return subscriber;\n }\n\n /** @internal */\n protected _trySubscribe(sink: Subscriber): TeardownLogic {\n try {\n return this._subscribe(sink);\n } catch (err) {\n // We don't need to return anything in this case,\n // because it's just going to try to `add()` to a subscription\n // above.\n sink.error(err);\n }\n }\n\n /**\n * Used as a NON-CANCELLABLE means of subscribing to an observable, for use with\n * APIs that expect promises, like `async/await`. You cannot unsubscribe from this.\n *\n * **WARNING**: Only use this with observables you *know* will complete. If the source\n * observable does not complete, you will end up with a promise that is hung up, and\n * potentially all of the state of an async function hanging out in memory. To avoid\n * this situation, look into adding something like {@link timeout}, {@link take},\n * {@link takeWhile}, or {@link takeUntil} amongst others.\n *\n * #### Example\n *\n * ```ts\n * import { interval, take } from 'rxjs';\n *\n * const source$ = interval(1000).pipe(take(4));\n *\n * async function getTotal() {\n * let total = 0;\n *\n * await source$.forEach(value => {\n * total += value;\n * console.log('observable -> ' + value);\n * });\n *\n * return total;\n * }\n *\n * getTotal().then(\n * total => console.log('Total: ' + total)\n * );\n *\n * // Expected:\n * // 'observable -> 0'\n * // 'observable -> 1'\n * // 'observable -> 2'\n * // 'observable -> 3'\n * // 'Total: 6'\n * ```\n *\n * @param next a handler for each value emitted by the observable\n * @return a promise that either resolves on observable completion or\n * rejects with the handled error\n */\n forEach(next: (value: T) => void): Promise;\n\n /**\n * @param next a handler for each value emitted by the observable\n * @param promiseCtor a constructor function used to instantiate the Promise\n * @return a promise that either resolves on observable completion or\n * rejects with the handled error\n * @deprecated Passing a Promise constructor will no longer be available\n * in upcoming versions of RxJS. This is because it adds weight to the library, for very\n * little benefit. If you need this functionality, it is recommended that you either\n * polyfill Promise, or you create an adapter to convert the returned native promise\n * to whatever promise implementation you wanted. Will be removed in v8.\n */\n forEach(next: (value: T) => void, promiseCtor: PromiseConstructorLike): Promise;\n\n forEach(next: (value: T) => void, promiseCtor?: PromiseConstructorLike): Promise {\n promiseCtor = getPromiseCtor(promiseCtor);\n\n return new promiseCtor((resolve, reject) => {\n const subscriber = new SafeSubscriber({\n next: (value) => {\n try {\n next(value);\n } catch (err) {\n reject(err);\n subscriber.unsubscribe();\n }\n },\n error: reject,\n complete: resolve,\n });\n this.subscribe(subscriber);\n }) as Promise;\n }\n\n /** @internal */\n protected _subscribe(subscriber: Subscriber): TeardownLogic {\n return this.source?.subscribe(subscriber);\n }\n\n /**\n * An interop point defined by the es7-observable spec https://github.com/zenparsing/es-observable\n * @method Symbol.observable\n * @return {Observable} this instance of the observable\n */\n [Symbol_observable]() {\n return this;\n }\n\n /* tslint:disable:max-line-length */\n pipe(): Observable;\n pipe(op1: OperatorFunction): Observable;\n pipe(op1: OperatorFunction, op2: OperatorFunction): Observable;\n pipe(op1: OperatorFunction, op2: OperatorFunction, op3: OperatorFunction): Observable;\n pipe(\n op1: OperatorFunction,\n op2: OperatorFunction,\n op3: OperatorFunction,\n op4: OperatorFunction\n ): Observable;\n pipe(\n op1: OperatorFunction,\n op2: OperatorFunction,\n op3: OperatorFunction,\n op4: OperatorFunction,\n op5: OperatorFunction\n ): Observable;\n pipe(\n op1: OperatorFunction,\n op2: OperatorFunction,\n op3: OperatorFunction,\n op4: OperatorFunction,\n op5: OperatorFunction,\n op6: OperatorFunction\n ): Observable;\n pipe(\n op1: OperatorFunction,\n op2: OperatorFunction,\n op3: OperatorFunction,\n op4: OperatorFunction,\n op5: OperatorFunction,\n op6: OperatorFunction,\n op7: OperatorFunction\n ): Observable;\n pipe(\n op1: OperatorFunction,\n op2: OperatorFunction,\n op3: OperatorFunction,\n op4: OperatorFunction,\n op5: OperatorFunction,\n op6: OperatorFunction,\n op7: OperatorFunction,\n op8: OperatorFunction\n ): Observable;\n pipe(\n op1: OperatorFunction,\n op2: OperatorFunction,\n op3: OperatorFunction,\n op4: OperatorFunction,\n op5: OperatorFunction,\n op6: OperatorFunction,\n op7: OperatorFunction,\n op8: OperatorFunction,\n op9: OperatorFunction\n ): Observable;\n pipe(\n op1: OperatorFunction,\n op2: OperatorFunction,\n op3: OperatorFunction,\n op4: OperatorFunction,\n op5: OperatorFunction,\n op6: OperatorFunction,\n op7: OperatorFunction,\n op8: OperatorFunction,\n op9: OperatorFunction,\n ...operations: OperatorFunction[]\n ): Observable;\n /* tslint:enable:max-line-length */\n\n /**\n * Used to stitch together functional operators into a chain.\n * @method pipe\n * @return {Observable} the Observable result of all of the operators having\n * been called in the order they were passed in.\n *\n * ## Example\n *\n * ```ts\n * import { interval, filter, map, scan } from 'rxjs';\n *\n * interval(1000)\n * .pipe(\n * filter(x => x % 2 === 0),\n * map(x => x + x),\n * scan((acc, x) => acc + x)\n * )\n * .subscribe(x => console.log(x));\n * ```\n */\n pipe(...operations: OperatorFunction[]): Observable {\n return pipeFromArray(operations)(this);\n }\n\n /* tslint:disable:max-line-length */\n /** @deprecated Replaced with {@link firstValueFrom} and {@link lastValueFrom}. Will be removed in v8. Details: https://rxjs.dev/deprecations/to-promise */\n toPromise(): Promise;\n /** @deprecated Replaced with {@link firstValueFrom} and {@link lastValueFrom}. Will be removed in v8. Details: https://rxjs.dev/deprecations/to-promise */\n toPromise(PromiseCtor: typeof Promise): Promise;\n /** @deprecated Replaced with {@link firstValueFrom} and {@link lastValueFrom}. Will be removed in v8. Details: https://rxjs.dev/deprecations/to-promise */\n toPromise(PromiseCtor: PromiseConstructorLike): Promise;\n /* tslint:enable:max-line-length */\n\n /**\n * Subscribe to this Observable and get a Promise resolving on\n * `complete` with the last emission (if any).\n *\n * **WARNING**: Only use this with observables you *know* will complete. If the source\n * observable does not complete, you will end up with a promise that is hung up, and\n * potentially all of the state of an async function hanging out in memory. To avoid\n * this situation, look into adding something like {@link timeout}, {@link take},\n * {@link takeWhile}, or {@link takeUntil} amongst others.\n *\n * @method toPromise\n * @param [promiseCtor] a constructor function used to instantiate\n * the Promise\n * @return A Promise that resolves with the last value emit, or\n * rejects on an error. If there were no emissions, Promise\n * resolves with undefined.\n * @deprecated Replaced with {@link firstValueFrom} and {@link lastValueFrom}. Will be removed in v8. Details: https://rxjs.dev/deprecations/to-promise\n */\n toPromise(promiseCtor?: PromiseConstructorLike): Promise {\n promiseCtor = getPromiseCtor(promiseCtor);\n\n return new promiseCtor((resolve, reject) => {\n let value: T | undefined;\n this.subscribe(\n (x: T) => (value = x),\n (err: any) => reject(err),\n () => resolve(value)\n );\n }) as Promise;\n }\n}\n\n/**\n * Decides between a passed promise constructor from consuming code,\n * A default configured promise constructor, and the native promise\n * constructor and returns it. If nothing can be found, it will throw\n * an error.\n * @param promiseCtor The optional promise constructor to passed by consuming code\n */\nfunction getPromiseCtor(promiseCtor: PromiseConstructorLike | undefined) {\n return promiseCtor ?? config.Promise ?? Promise;\n}\n\nfunction isObserver(value: any): value is Observer {\n return value && isFunction(value.next) && isFunction(value.error) && isFunction(value.complete);\n}\n\nfunction isSubscriber(value: any): value is Subscriber {\n return (value && value instanceof Subscriber) || (isObserver(value) && isSubscription(value));\n}\n", "import { Observable } from '../Observable';\nimport { Subscriber } from '../Subscriber';\nimport { OperatorFunction } from '../types';\nimport { isFunction } from './isFunction';\n\n/**\n * Used to determine if an object is an Observable with a lift function.\n */\nexport function hasLift(source: any): source is { lift: InstanceType['lift'] } {\n return isFunction(source?.lift);\n}\n\n/**\n * Creates an `OperatorFunction`. Used to define operators throughout the library in a concise way.\n * @param init The logic to connect the liftedSource to the subscriber at the moment of subscription.\n */\nexport function operate(\n init: (liftedSource: Observable, subscriber: Subscriber) => (() => void) | void\n): OperatorFunction {\n return (source: Observable) => {\n if (hasLift(source)) {\n return source.lift(function (this: Subscriber, liftedSource: Observable) {\n try {\n return init(liftedSource, this);\n } catch (err) {\n this.error(err);\n }\n });\n }\n throw new TypeError('Unable to lift unknown Observable type');\n };\n}\n", "import { Subscriber } from '../Subscriber';\n\n/**\n * Creates an instance of an `OperatorSubscriber`.\n * @param destination The downstream subscriber.\n * @param onNext Handles next values, only called if this subscriber is not stopped or closed. Any\n * error that occurs in this function is caught and sent to the `error` method of this subscriber.\n * @param onError Handles errors from the subscription, any errors that occur in this handler are caught\n * and send to the `destination` error handler.\n * @param onComplete Handles completion notification from the subscription. Any errors that occur in\n * this handler are sent to the `destination` error handler.\n * @param onFinalize Additional teardown logic here. This will only be called on teardown if the\n * subscriber itself is not already closed. This is called after all other teardown logic is executed.\n */\nexport function createOperatorSubscriber(\n destination: Subscriber,\n onNext?: (value: T) => void,\n onComplete?: () => void,\n onError?: (err: any) => void,\n onFinalize?: () => void\n): Subscriber {\n return new OperatorSubscriber(destination, onNext, onComplete, onError, onFinalize);\n}\n\n/**\n * A generic helper for allowing operators to be created with a Subscriber and\n * use closures to capture necessary state from the operator function itself.\n */\nexport class OperatorSubscriber extends Subscriber {\n /**\n * Creates an instance of an `OperatorSubscriber`.\n * @param destination The downstream subscriber.\n * @param onNext Handles next values, only called if this subscriber is not stopped or closed. Any\n * error that occurs in this function is caught and sent to the `error` method of this subscriber.\n * @param onError Handles errors from the subscription, any errors that occur in this handler are caught\n * and send to the `destination` error handler.\n * @param onComplete Handles completion notification from the subscription. Any errors that occur in\n * this handler are sent to the `destination` error handler.\n * @param onFinalize Additional finalization logic here. This will only be called on finalization if the\n * subscriber itself is not already closed. This is called after all other finalization logic is executed.\n * @param shouldUnsubscribe An optional check to see if an unsubscribe call should truly unsubscribe.\n * NOTE: This currently **ONLY** exists to support the strange behavior of {@link groupBy}, where unsubscription\n * to the resulting observable does not actually disconnect from the source if there are active subscriptions\n * to any grouped observable. (DO NOT EXPOSE OR USE EXTERNALLY!!!)\n */\n constructor(\n destination: Subscriber,\n onNext?: (value: T) => void,\n onComplete?: () => void,\n onError?: (err: any) => void,\n private onFinalize?: () => void,\n private shouldUnsubscribe?: () => boolean\n ) {\n // It's important - for performance reasons - that all of this class's\n // members are initialized and that they are always initialized in the same\n // order. This will ensure that all OperatorSubscriber instances have the\n // same hidden class in V8. This, in turn, will help keep the number of\n // hidden classes involved in property accesses within the base class as\n // low as possible. If the number of hidden classes involved exceeds four,\n // the property accesses will become megamorphic and performance penalties\n // will be incurred - i.e. inline caches won't be used.\n //\n // The reasons for ensuring all instances have the same hidden class are\n // further discussed in this blog post from Benedikt Meurer:\n // https://benediktmeurer.de/2018/03/23/impact-of-polymorphism-on-component-based-frameworks-like-react/\n super(destination);\n this._next = onNext\n ? function (this: OperatorSubscriber, value: T) {\n try {\n onNext(value);\n } catch (err) {\n destination.error(err);\n }\n }\n : super._next;\n this._error = onError\n ? function (this: OperatorSubscriber, err: any) {\n try {\n onError(err);\n } catch (err) {\n // Send any errors that occur down stream.\n destination.error(err);\n } finally {\n // Ensure finalization.\n this.unsubscribe();\n }\n }\n : super._error;\n this._complete = onComplete\n ? function (this: OperatorSubscriber) {\n try {\n onComplete();\n } catch (err) {\n // Send any errors that occur down stream.\n destination.error(err);\n } finally {\n // Ensure finalization.\n this.unsubscribe();\n }\n }\n : super._complete;\n }\n\n unsubscribe() {\n if (!this.shouldUnsubscribe || this.shouldUnsubscribe()) {\n const { closed } = this;\n super.unsubscribe();\n // Execute additional teardown if we have any and we didn't already do so.\n !closed && this.onFinalize?.();\n }\n }\n}\n", "import { Subscription } from '../Subscription';\n\ninterface AnimationFrameProvider {\n schedule(callback: FrameRequestCallback): Subscription;\n requestAnimationFrame: typeof requestAnimationFrame;\n cancelAnimationFrame: typeof cancelAnimationFrame;\n delegate:\n | {\n requestAnimationFrame: typeof requestAnimationFrame;\n cancelAnimationFrame: typeof cancelAnimationFrame;\n }\n | undefined;\n}\n\nexport const animationFrameProvider: AnimationFrameProvider = {\n // When accessing the delegate, use the variable rather than `this` so that\n // the functions can be called without being bound to the provider.\n schedule(callback) {\n let request = requestAnimationFrame;\n let cancel: typeof cancelAnimationFrame | undefined = cancelAnimationFrame;\n const { delegate } = animationFrameProvider;\n if (delegate) {\n request = delegate.requestAnimationFrame;\n cancel = delegate.cancelAnimationFrame;\n }\n const handle = request((timestamp) => {\n // Clear the cancel function. The request has been fulfilled, so\n // attempting to cancel the request upon unsubscription would be\n // pointless.\n cancel = undefined;\n callback(timestamp);\n });\n return new Subscription(() => cancel?.(handle));\n },\n requestAnimationFrame(...args) {\n const { delegate } = animationFrameProvider;\n return (delegate?.requestAnimationFrame || requestAnimationFrame)(...args);\n },\n cancelAnimationFrame(...args) {\n const { delegate } = animationFrameProvider;\n return (delegate?.cancelAnimationFrame || cancelAnimationFrame)(...args);\n },\n delegate: undefined,\n};\n", "import { createErrorClass } from './createErrorClass';\n\nexport interface ObjectUnsubscribedError extends Error {}\n\nexport interface ObjectUnsubscribedErrorCtor {\n /**\n * @deprecated Internal implementation detail. Do not construct error instances.\n * Cannot be tagged as internal: https://github.com/ReactiveX/rxjs/issues/6269\n */\n new (): ObjectUnsubscribedError;\n}\n\n/**\n * An error thrown when an action is invalid because the object has been\n * unsubscribed.\n *\n * @see {@link Subject}\n * @see {@link BehaviorSubject}\n *\n * @class ObjectUnsubscribedError\n */\nexport const ObjectUnsubscribedError: ObjectUnsubscribedErrorCtor = createErrorClass(\n (_super) =>\n function ObjectUnsubscribedErrorImpl(this: any) {\n _super(this);\n this.name = 'ObjectUnsubscribedError';\n this.message = 'object unsubscribed';\n }\n);\n", "import { Operator } from './Operator';\nimport { Observable } from './Observable';\nimport { Subscriber } from './Subscriber';\nimport { Subscription, EMPTY_SUBSCRIPTION } from './Subscription';\nimport { Observer, SubscriptionLike, TeardownLogic } from './types';\nimport { ObjectUnsubscribedError } from './util/ObjectUnsubscribedError';\nimport { arrRemove } from './util/arrRemove';\nimport { errorContext } from './util/errorContext';\n\n/**\n * A Subject is a special type of Observable that allows values to be\n * multicasted to many Observers. Subjects are like EventEmitters.\n *\n * Every Subject is an Observable and an Observer. You can subscribe to a\n * Subject, and you can call next to feed values as well as error and complete.\n */\nexport class Subject extends Observable implements SubscriptionLike {\n closed = false;\n\n private currentObservers: Observer[] | null = null;\n\n /** @deprecated Internal implementation detail, do not use directly. Will be made internal in v8. */\n observers: Observer[] = [];\n /** @deprecated Internal implementation detail, do not use directly. Will be made internal in v8. */\n isStopped = false;\n /** @deprecated Internal implementation detail, do not use directly. Will be made internal in v8. */\n hasError = false;\n /** @deprecated Internal implementation detail, do not use directly. Will be made internal in v8. */\n thrownError: any = null;\n\n /**\n * Creates a \"subject\" by basically gluing an observer to an observable.\n *\n * @nocollapse\n * @deprecated Recommended you do not use. Will be removed at some point in the future. Plans for replacement still under discussion.\n */\n static create: (...args: any[]) => any = (destination: Observer, source: Observable): AnonymousSubject => {\n return new AnonymousSubject(destination, source);\n };\n\n constructor() {\n // NOTE: This must be here to obscure Observable's constructor.\n super();\n }\n\n /** @deprecated Internal implementation detail, do not use directly. Will be made internal in v8. */\n lift(operator: Operator): Observable {\n const subject = new AnonymousSubject(this, this);\n subject.operator = operator as any;\n return subject as any;\n }\n\n /** @internal */\n protected _throwIfClosed() {\n if (this.closed) {\n throw new ObjectUnsubscribedError();\n }\n }\n\n next(value: T) {\n errorContext(() => {\n this._throwIfClosed();\n if (!this.isStopped) {\n if (!this.currentObservers) {\n this.currentObservers = Array.from(this.observers);\n }\n for (const observer of this.currentObservers) {\n observer.next(value);\n }\n }\n });\n }\n\n error(err: any) {\n errorContext(() => {\n this._throwIfClosed();\n if (!this.isStopped) {\n this.hasError = this.isStopped = true;\n this.thrownError = err;\n const { observers } = this;\n while (observers.length) {\n observers.shift()!.error(err);\n }\n }\n });\n }\n\n complete() {\n errorContext(() => {\n this._throwIfClosed();\n if (!this.isStopped) {\n this.isStopped = true;\n const { observers } = this;\n while (observers.length) {\n observers.shift()!.complete();\n }\n }\n });\n }\n\n unsubscribe() {\n this.isStopped = this.closed = true;\n this.observers = this.currentObservers = null!;\n }\n\n get observed() {\n return this.observers?.length > 0;\n }\n\n /** @internal */\n protected _trySubscribe(subscriber: Subscriber): TeardownLogic {\n this._throwIfClosed();\n return super._trySubscribe(subscriber);\n }\n\n /** @internal */\n protected _subscribe(subscriber: Subscriber): Subscription {\n this._throwIfClosed();\n this._checkFinalizedStatuses(subscriber);\n return this._innerSubscribe(subscriber);\n }\n\n /** @internal */\n protected _innerSubscribe(subscriber: Subscriber) {\n const { hasError, isStopped, observers } = this;\n if (hasError || isStopped) {\n return EMPTY_SUBSCRIPTION;\n }\n this.currentObservers = null;\n observers.push(subscriber);\n return new Subscription(() => {\n this.currentObservers = null;\n arrRemove(observers, subscriber);\n });\n }\n\n /** @internal */\n protected _checkFinalizedStatuses(subscriber: Subscriber) {\n const { hasError, thrownError, isStopped } = this;\n if (hasError) {\n subscriber.error(thrownError);\n } else if (isStopped) {\n subscriber.complete();\n }\n }\n\n /**\n * Creates a new Observable with this Subject as the source. You can do this\n * to create custom Observer-side logic of the Subject and conceal it from\n * code that uses the Observable.\n * @return {Observable} Observable that the Subject casts to\n */\n asObservable(): Observable {\n const observable: any = new Observable();\n observable.source = this;\n return observable;\n }\n}\n\n/**\n * @class AnonymousSubject\n */\nexport class AnonymousSubject extends Subject {\n constructor(\n /** @deprecated Internal implementation detail, do not use directly. Will be made internal in v8. */\n public destination?: Observer,\n source?: Observable\n ) {\n super();\n this.source = source;\n }\n\n next(value: T) {\n this.destination?.next?.(value);\n }\n\n error(err: any) {\n this.destination?.error?.(err);\n }\n\n complete() {\n this.destination?.complete?.();\n }\n\n /** @internal */\n protected _subscribe(subscriber: Subscriber): Subscription {\n return this.source?.subscribe(subscriber) ?? EMPTY_SUBSCRIPTION;\n }\n}\n", "import { TimestampProvider } from '../types';\n\ninterface DateTimestampProvider extends TimestampProvider {\n delegate: TimestampProvider | undefined;\n}\n\nexport const dateTimestampProvider: DateTimestampProvider = {\n now() {\n // Use the variable rather than `this` so that the function can be called\n // without being bound to the provider.\n return (dateTimestampProvider.delegate || Date).now();\n },\n delegate: undefined,\n};\n", "import { Subject } from './Subject';\nimport { TimestampProvider } from './types';\nimport { Subscriber } from './Subscriber';\nimport { Subscription } from './Subscription';\nimport { dateTimestampProvider } from './scheduler/dateTimestampProvider';\n\n/**\n * A variant of {@link Subject} that \"replays\" old values to new subscribers by emitting them when they first subscribe.\n *\n * `ReplaySubject` has an internal buffer that will store a specified number of values that it has observed. Like `Subject`,\n * `ReplaySubject` \"observes\" values by having them passed to its `next` method. When it observes a value, it will store that\n * value for a time determined by the configuration of the `ReplaySubject`, as passed to its constructor.\n *\n * When a new subscriber subscribes to the `ReplaySubject` instance, it will synchronously emit all values in its buffer in\n * a First-In-First-Out (FIFO) manner. The `ReplaySubject` will also complete, if it has observed completion; and it will\n * error if it has observed an error.\n *\n * There are two main configuration items to be concerned with:\n *\n * 1. `bufferSize` - This will determine how many items are stored in the buffer, defaults to infinite.\n * 2. `windowTime` - The amount of time to hold a value in the buffer before removing it from the buffer.\n *\n * Both configurations may exist simultaneously. So if you would like to buffer a maximum of 3 values, as long as the values\n * are less than 2 seconds old, you could do so with a `new ReplaySubject(3, 2000)`.\n *\n * ### Differences with BehaviorSubject\n *\n * `BehaviorSubject` is similar to `new ReplaySubject(1)`, with a couple of exceptions:\n *\n * 1. `BehaviorSubject` comes \"primed\" with a single value upon construction.\n * 2. `ReplaySubject` will replay values, even after observing an error, where `BehaviorSubject` will not.\n *\n * @see {@link Subject}\n * @see {@link BehaviorSubject}\n * @see {@link shareReplay}\n */\nexport class ReplaySubject extends Subject {\n private _buffer: (T | number)[] = [];\n private _infiniteTimeWindow = true;\n\n /**\n * @param bufferSize The size of the buffer to replay on subscription\n * @param windowTime The amount of time the buffered items will stay buffered\n * @param timestampProvider An object with a `now()` method that provides the current timestamp. This is used to\n * calculate the amount of time something has been buffered.\n */\n constructor(\n private _bufferSize = Infinity,\n private _windowTime = Infinity,\n private _timestampProvider: TimestampProvider = dateTimestampProvider\n ) {\n super();\n this._infiniteTimeWindow = _windowTime === Infinity;\n this._bufferSize = Math.max(1, _bufferSize);\n this._windowTime = Math.max(1, _windowTime);\n }\n\n next(value: T): void {\n const { isStopped, _buffer, _infiniteTimeWindow, _timestampProvider, _windowTime } = this;\n if (!isStopped) {\n _buffer.push(value);\n !_infiniteTimeWindow && _buffer.push(_timestampProvider.now() + _windowTime);\n }\n this._trimBuffer();\n super.next(value);\n }\n\n /** @internal */\n protected _subscribe(subscriber: Subscriber): Subscription {\n this._throwIfClosed();\n this._trimBuffer();\n\n const subscription = this._innerSubscribe(subscriber);\n\n const { _infiniteTimeWindow, _buffer } = this;\n // We use a copy here, so reentrant code does not mutate our array while we're\n // emitting it to a new subscriber.\n const copy = _buffer.slice();\n for (let i = 0; i < copy.length && !subscriber.closed; i += _infiniteTimeWindow ? 1 : 2) {\n subscriber.next(copy[i] as T);\n }\n\n this._checkFinalizedStatuses(subscriber);\n\n return subscription;\n }\n\n private _trimBuffer() {\n const { _bufferSize, _timestampProvider, _buffer, _infiniteTimeWindow } = this;\n // If we don't have an infinite buffer size, and we're over the length,\n // use splice to truncate the old buffer values off. Note that we have to\n // double the size for instances where we're not using an infinite time window\n // because we're storing the values and the timestamps in the same array.\n const adjustedBufferSize = (_infiniteTimeWindow ? 1 : 2) * _bufferSize;\n _bufferSize < Infinity && adjustedBufferSize < _buffer.length && _buffer.splice(0, _buffer.length - adjustedBufferSize);\n\n // Now, if we're not in an infinite time window, remove all values where the time is\n // older than what is allowed.\n if (!_infiniteTimeWindow) {\n const now = _timestampProvider.now();\n let last = 0;\n // Search the array for the first timestamp that isn't expired and\n // truncate the buffer up to that point.\n for (let i = 1; i < _buffer.length && (_buffer[i] as number) <= now; i += 2) {\n last = i;\n }\n last && _buffer.splice(0, last + 1);\n }\n }\n}\n", "import { Scheduler } from '../Scheduler';\nimport { Subscription } from '../Subscription';\nimport { SchedulerAction } from '../types';\n\n/**\n * A unit of work to be executed in a `scheduler`. An action is typically\n * created from within a {@link SchedulerLike} and an RxJS user does not need to concern\n * themselves about creating and manipulating an Action.\n *\n * ```ts\n * class Action extends Subscription {\n * new (scheduler: Scheduler, work: (state?: T) => void);\n * schedule(state?: T, delay: number = 0): Subscription;\n * }\n * ```\n *\n * @class Action\n */\nexport class Action extends Subscription {\n constructor(scheduler: Scheduler, work: (this: SchedulerAction, state?: T) => void) {\n super();\n }\n /**\n * Schedules this action on its parent {@link SchedulerLike} for execution. May be passed\n * some context object, `state`. May happen at some point in the future,\n * according to the `delay` parameter, if specified.\n * @param {T} [state] Some contextual data that the `work` function uses when\n * called by the Scheduler.\n * @param {number} [delay] Time to wait before executing the work, where the\n * time unit is implicit and defined by the Scheduler.\n * @return {void}\n */\n public schedule(state?: T, delay: number = 0): Subscription {\n return this;\n }\n}\n", "import type { TimerHandle } from './timerHandle';\ntype SetIntervalFunction = (handler: () => void, timeout?: number, ...args: any[]) => TimerHandle;\ntype ClearIntervalFunction = (handle: TimerHandle) => void;\n\ninterface IntervalProvider {\n setInterval: SetIntervalFunction;\n clearInterval: ClearIntervalFunction;\n delegate:\n | {\n setInterval: SetIntervalFunction;\n clearInterval: ClearIntervalFunction;\n }\n | undefined;\n}\n\nexport const intervalProvider: IntervalProvider = {\n // When accessing the delegate, use the variable rather than `this` so that\n // the functions can be called without being bound to the provider.\n setInterval(handler: () => void, timeout?: number, ...args) {\n const { delegate } = intervalProvider;\n if (delegate?.setInterval) {\n return delegate.setInterval(handler, timeout, ...args);\n }\n return setInterval(handler, timeout, ...args);\n },\n clearInterval(handle) {\n const { delegate } = intervalProvider;\n return (delegate?.clearInterval || clearInterval)(handle as any);\n },\n delegate: undefined,\n};\n", "import { Action } from './Action';\nimport { SchedulerAction } from '../types';\nimport { Subscription } from '../Subscription';\nimport { AsyncScheduler } from './AsyncScheduler';\nimport { intervalProvider } from './intervalProvider';\nimport { arrRemove } from '../util/arrRemove';\nimport { TimerHandle } from './timerHandle';\n\nexport class AsyncAction extends Action {\n public id: TimerHandle | undefined;\n public state?: T;\n // @ts-ignore: Property has no initializer and is not definitely assigned\n public delay: number;\n protected pending: boolean = false;\n\n constructor(protected scheduler: AsyncScheduler, protected work: (this: SchedulerAction, state?: T) => void) {\n super(scheduler, work);\n }\n\n public schedule(state?: T, delay: number = 0): Subscription {\n if (this.closed) {\n return this;\n }\n\n // Always replace the current state with the new state.\n this.state = state;\n\n const id = this.id;\n const scheduler = this.scheduler;\n\n //\n // Important implementation note:\n //\n // Actions only execute once by default, unless rescheduled from within the\n // scheduled callback. This allows us to implement single and repeat\n // actions via the same code path, without adding API surface area, as well\n // as mimic traditional recursion but across asynchronous boundaries.\n //\n // However, JS runtimes and timers distinguish between intervals achieved by\n // serial `setTimeout` calls vs. a single `setInterval` call. An interval of\n // serial `setTimeout` calls can be individually delayed, which delays\n // scheduling the next `setTimeout`, and so on. `setInterval` attempts to\n // guarantee the interval callback will be invoked more precisely to the\n // interval period, regardless of load.\n //\n // Therefore, we use `setInterval` to schedule single and repeat actions.\n // If the action reschedules itself with the same delay, the interval is not\n // canceled. If the action doesn't reschedule, or reschedules with a\n // different delay, the interval will be canceled after scheduled callback\n // execution.\n //\n if (id != null) {\n this.id = this.recycleAsyncId(scheduler, id, delay);\n }\n\n // Set the pending flag indicating that this action has been scheduled, or\n // has recursively rescheduled itself.\n this.pending = true;\n\n this.delay = delay;\n // If this action has already an async Id, don't request a new one.\n this.id = this.id ?? this.requestAsyncId(scheduler, this.id, delay);\n\n return this;\n }\n\n protected requestAsyncId(scheduler: AsyncScheduler, _id?: TimerHandle, delay: number = 0): TimerHandle {\n return intervalProvider.setInterval(scheduler.flush.bind(scheduler, this), delay);\n }\n\n protected recycleAsyncId(_scheduler: AsyncScheduler, id?: TimerHandle, delay: number | null = 0): TimerHandle | undefined {\n // If this action is rescheduled with the same delay time, don't clear the interval id.\n if (delay != null && this.delay === delay && this.pending === false) {\n return id;\n }\n // Otherwise, if the action's delay time is different from the current delay,\n // or the action has been rescheduled before it's executed, clear the interval id\n if (id != null) {\n intervalProvider.clearInterval(id);\n }\n\n return undefined;\n }\n\n /**\n * Immediately executes this action and the `work` it contains.\n * @return {any}\n */\n public execute(state: T, delay: number): any {\n if (this.closed) {\n return new Error('executing a cancelled action');\n }\n\n this.pending = false;\n const error = this._execute(state, delay);\n if (error) {\n return error;\n } else if (this.pending === false && this.id != null) {\n // Dequeue if the action didn't reschedule itself. Don't call\n // unsubscribe(), because the action could reschedule later.\n // For example:\n // ```\n // scheduler.schedule(function doWork(counter) {\n // /* ... I'm a busy worker bee ... */\n // var originalAction = this;\n // /* wait 100ms before rescheduling the action */\n // setTimeout(function () {\n // originalAction.schedule(counter + 1);\n // }, 100);\n // }, 1000);\n // ```\n this.id = this.recycleAsyncId(this.scheduler, this.id, null);\n }\n }\n\n protected _execute(state: T, _delay: number): any {\n let errored: boolean = false;\n let errorValue: any;\n try {\n this.work(state);\n } catch (e) {\n errored = true;\n // HACK: Since code elsewhere is relying on the \"truthiness\" of the\n // return here, we can't have it return \"\" or 0 or false.\n // TODO: Clean this up when we refactor schedulers mid-version-8 or so.\n errorValue = e ? e : new Error('Scheduled action threw falsy error');\n }\n if (errored) {\n this.unsubscribe();\n return errorValue;\n }\n }\n\n unsubscribe() {\n if (!this.closed) {\n const { id, scheduler } = this;\n const { actions } = scheduler;\n\n this.work = this.state = this.scheduler = null!;\n this.pending = false;\n\n arrRemove(actions, this);\n if (id != null) {\n this.id = this.recycleAsyncId(scheduler, id, null);\n }\n\n this.delay = null!;\n super.unsubscribe();\n }\n }\n}\n", "import { Action } from './scheduler/Action';\nimport { Subscription } from './Subscription';\nimport { SchedulerLike, SchedulerAction } from './types';\nimport { dateTimestampProvider } from './scheduler/dateTimestampProvider';\n\n/**\n * An execution context and a data structure to order tasks and schedule their\n * execution. Provides a notion of (potentially virtual) time, through the\n * `now()` getter method.\n *\n * Each unit of work in a Scheduler is called an `Action`.\n *\n * ```ts\n * class Scheduler {\n * now(): number;\n * schedule(work, delay?, state?): Subscription;\n * }\n * ```\n *\n * @class Scheduler\n * @deprecated Scheduler is an internal implementation detail of RxJS, and\n * should not be used directly. Rather, create your own class and implement\n * {@link SchedulerLike}. Will be made internal in v8.\n */\nexport class Scheduler implements SchedulerLike {\n public static now: () => number = dateTimestampProvider.now;\n\n constructor(private schedulerActionCtor: typeof Action, now: () => number = Scheduler.now) {\n this.now = now;\n }\n\n /**\n * A getter method that returns a number representing the current time\n * (at the time this function was called) according to the scheduler's own\n * internal clock.\n * @return {number} A number that represents the current time. May or may not\n * have a relation to wall-clock time. May or may not refer to a time unit\n * (e.g. milliseconds).\n */\n public now: () => number;\n\n /**\n * Schedules a function, `work`, for execution. May happen at some point in\n * the future, according to the `delay` parameter, if specified. May be passed\n * some context object, `state`, which will be passed to the `work` function.\n *\n * The given arguments will be processed an stored as an Action object in a\n * queue of actions.\n *\n * @param {function(state: ?T): ?Subscription} work A function representing a\n * task, or some unit of work to be executed by the Scheduler.\n * @param {number} [delay] Time to wait before executing the work, where the\n * time unit is implicit and defined by the Scheduler itself.\n * @param {T} [state] Some contextual data that the `work` function uses when\n * called by the Scheduler.\n * @return {Subscription} A subscription in order to be able to unsubscribe\n * the scheduled work.\n */\n public schedule(work: (this: SchedulerAction, state?: T) => void, delay: number = 0, state?: T): Subscription {\n return new this.schedulerActionCtor(this, work).schedule(state, delay);\n }\n}\n", "import { Scheduler } from '../Scheduler';\nimport { Action } from './Action';\nimport { AsyncAction } from './AsyncAction';\nimport { TimerHandle } from './timerHandle';\n\nexport class AsyncScheduler extends Scheduler {\n public actions: Array> = [];\n /**\n * A flag to indicate whether the Scheduler is currently executing a batch of\n * queued actions.\n * @type {boolean}\n * @internal\n */\n public _active: boolean = false;\n /**\n * An internal ID used to track the latest asynchronous task such as those\n * coming from `setTimeout`, `setInterval`, `requestAnimationFrame`, and\n * others.\n * @type {any}\n * @internal\n */\n public _scheduled: TimerHandle | undefined;\n\n constructor(SchedulerAction: typeof Action, now: () => number = Scheduler.now) {\n super(SchedulerAction, now);\n }\n\n public flush(action: AsyncAction): void {\n const { actions } = this;\n\n if (this._active) {\n actions.push(action);\n return;\n }\n\n let error: any;\n this._active = true;\n\n do {\n if ((error = action.execute(action.state, action.delay))) {\n break;\n }\n } while ((action = actions.shift()!)); // exhaust the scheduler queue\n\n this._active = false;\n\n if (error) {\n while ((action = actions.shift()!)) {\n action.unsubscribe();\n }\n throw error;\n }\n }\n}\n", "import { AsyncAction } from './AsyncAction';\nimport { AsyncScheduler } from './AsyncScheduler';\n\n/**\n *\n * Async Scheduler\n *\n * Schedule task as if you used setTimeout(task, duration)\n *\n * `async` scheduler schedules tasks asynchronously, by putting them on the JavaScript\n * event loop queue. It is best used to delay tasks in time or to schedule tasks repeating\n * in intervals.\n *\n * If you just want to \"defer\" task, that is to perform it right after currently\n * executing synchronous code ends (commonly achieved by `setTimeout(deferredTask, 0)`),\n * better choice will be the {@link asapScheduler} scheduler.\n *\n * ## Examples\n * Use async scheduler to delay task\n * ```ts\n * import { asyncScheduler } from 'rxjs';\n *\n * const task = () => console.log('it works!');\n *\n * asyncScheduler.schedule(task, 2000);\n *\n * // After 2 seconds logs:\n * // \"it works!\"\n * ```\n *\n * Use async scheduler to repeat task in intervals\n * ```ts\n * import { asyncScheduler } from 'rxjs';\n *\n * function task(state) {\n * console.log(state);\n * this.schedule(state + 1, 1000); // `this` references currently executing Action,\n * // which we reschedule with new state and delay\n * }\n *\n * asyncScheduler.schedule(task, 3000, 0);\n *\n * // Logs:\n * // 0 after 3s\n * // 1 after 4s\n * // 2 after 5s\n * // 3 after 6s\n * ```\n */\n\nexport const asyncScheduler = new AsyncScheduler(AsyncAction);\n\n/**\n * @deprecated Renamed to {@link asyncScheduler}. Will be removed in v8.\n */\nexport const async = asyncScheduler;\n", "import { AsyncAction } from './AsyncAction';\nimport { AnimationFrameScheduler } from './AnimationFrameScheduler';\nimport { SchedulerAction } from '../types';\nimport { animationFrameProvider } from './animationFrameProvider';\nimport { TimerHandle } from './timerHandle';\n\nexport class AnimationFrameAction extends AsyncAction {\n constructor(protected scheduler: AnimationFrameScheduler, protected work: (this: SchedulerAction, state?: T) => void) {\n super(scheduler, work);\n }\n\n protected requestAsyncId(scheduler: AnimationFrameScheduler, id?: TimerHandle, delay: number = 0): TimerHandle {\n // If delay is greater than 0, request as an async action.\n if (delay !== null && delay > 0) {\n return super.requestAsyncId(scheduler, id, delay);\n }\n // Push the action to the end of the scheduler queue.\n scheduler.actions.push(this);\n // If an animation frame has already been requested, don't request another\n // one. If an animation frame hasn't been requested yet, request one. Return\n // the current animation frame request id.\n return scheduler._scheduled || (scheduler._scheduled = animationFrameProvider.requestAnimationFrame(() => scheduler.flush(undefined)));\n }\n\n protected recycleAsyncId(scheduler: AnimationFrameScheduler, id?: TimerHandle, delay: number = 0): TimerHandle | undefined {\n // If delay exists and is greater than 0, or if the delay is null (the\n // action wasn't rescheduled) but was originally scheduled as an async\n // action, then recycle as an async action.\n if (delay != null ? delay > 0 : this.delay > 0) {\n return super.recycleAsyncId(scheduler, id, delay);\n }\n // If the scheduler queue has no remaining actions with the same async id,\n // cancel the requested animation frame and set the scheduled flag to\n // undefined so the next AnimationFrameAction will request its own.\n const { actions } = scheduler;\n if (id != null && actions[actions.length - 1]?.id !== id) {\n animationFrameProvider.cancelAnimationFrame(id as number);\n scheduler._scheduled = undefined;\n }\n // Return undefined so the action knows to request a new async id if it's rescheduled.\n return undefined;\n }\n}\n", "import { AsyncAction } from './AsyncAction';\nimport { AsyncScheduler } from './AsyncScheduler';\n\nexport class AnimationFrameScheduler extends AsyncScheduler {\n public flush(action?: AsyncAction): void {\n this._active = true;\n // The async id that effects a call to flush is stored in _scheduled.\n // Before executing an action, it's necessary to check the action's async\n // id to determine whether it's supposed to be executed in the current\n // flush.\n // Previous implementations of this method used a count to determine this,\n // but that was unsound, as actions that are unsubscribed - i.e. cancelled -\n // are removed from the actions array and that can shift actions that are\n // scheduled to be executed in a subsequent flush into positions at which\n // they are executed within the current flush.\n const flushId = this._scheduled;\n this._scheduled = undefined;\n\n const { actions } = this;\n let error: any;\n action = action || actions.shift()!;\n\n do {\n if ((error = action.execute(action.state, action.delay))) {\n break;\n }\n } while ((action = actions[0]) && action.id === flushId && actions.shift());\n\n this._active = false;\n\n if (error) {\n while ((action = actions[0]) && action.id === flushId && actions.shift()) {\n action.unsubscribe();\n }\n throw error;\n }\n }\n}\n", "import { AnimationFrameAction } from './AnimationFrameAction';\nimport { AnimationFrameScheduler } from './AnimationFrameScheduler';\n\n/**\n *\n * Animation Frame Scheduler\n *\n * Perform task when `window.requestAnimationFrame` would fire\n *\n * When `animationFrame` scheduler is used with delay, it will fall back to {@link asyncScheduler} scheduler\n * behaviour.\n *\n * Without delay, `animationFrame` scheduler can be used to create smooth browser animations.\n * It makes sure scheduled task will happen just before next browser content repaint,\n * thus performing animations as efficiently as possible.\n *\n * ## Example\n * Schedule div height animation\n * ```ts\n * // html:
\n * import { animationFrameScheduler } from 'rxjs';\n *\n * const div = document.querySelector('div');\n *\n * animationFrameScheduler.schedule(function(height) {\n * div.style.height = height + \"px\";\n *\n * this.schedule(height + 1); // `this` references currently executing Action,\n * // which we reschedule with new state\n * }, 0, 0);\n *\n * // You will see a div element growing in height\n * ```\n */\n\nexport const animationFrameScheduler = new AnimationFrameScheduler(AnimationFrameAction);\n\n/**\n * @deprecated Renamed to {@link animationFrameScheduler}. Will be removed in v8.\n */\nexport const animationFrame = animationFrameScheduler;\n", "import { Observable } from '../Observable';\nimport { SchedulerLike } from '../types';\n\n/**\n * A simple Observable that emits no items to the Observer and immediately\n * emits a complete notification.\n *\n * Just emits 'complete', and nothing else.\n *\n * ![](empty.png)\n *\n * A simple Observable that only emits the complete notification. It can be used\n * for composing with other Observables, such as in a {@link mergeMap}.\n *\n * ## Examples\n *\n * Log complete notification\n *\n * ```ts\n * import { EMPTY } from 'rxjs';\n *\n * EMPTY.subscribe({\n * next: () => console.log('Next'),\n * complete: () => console.log('Complete!')\n * });\n *\n * // Outputs\n * // Complete!\n * ```\n *\n * Emit the number 7, then complete\n *\n * ```ts\n * import { EMPTY, startWith } from 'rxjs';\n *\n * const result = EMPTY.pipe(startWith(7));\n * result.subscribe(x => console.log(x));\n *\n * // Outputs\n * // 7\n * ```\n *\n * Map and flatten only odd numbers to the sequence `'a'`, `'b'`, `'c'`\n *\n * ```ts\n * import { interval, mergeMap, of, EMPTY } from 'rxjs';\n *\n * const interval$ = interval(1000);\n * const result = interval$.pipe(\n * mergeMap(x => x % 2 === 1 ? of('a', 'b', 'c') : EMPTY),\n * );\n * result.subscribe(x => console.log(x));\n *\n * // Results in the following to the console:\n * // x is equal to the count on the interval, e.g. (0, 1, 2, 3, ...)\n * // x will occur every 1000ms\n * // if x % 2 is equal to 1, print a, b, c (each on its own)\n * // if x % 2 is not equal to 1, nothing will be output\n * ```\n *\n * @see {@link Observable}\n * @see {@link NEVER}\n * @see {@link of}\n * @see {@link throwError}\n */\nexport const EMPTY = new Observable((subscriber) => subscriber.complete());\n\n/**\n * @param scheduler A {@link SchedulerLike} to use for scheduling\n * the emission of the complete notification.\n * @deprecated Replaced with the {@link EMPTY} constant or {@link scheduled} (e.g. `scheduled([], scheduler)`). Will be removed in v8.\n */\nexport function empty(scheduler?: SchedulerLike) {\n return scheduler ? emptyScheduled(scheduler) : EMPTY;\n}\n\nfunction emptyScheduled(scheduler: SchedulerLike) {\n return new Observable((subscriber) => scheduler.schedule(() => subscriber.complete()));\n}\n", "import { SchedulerLike } from '../types';\nimport { isFunction } from './isFunction';\n\nexport function isScheduler(value: any): value is SchedulerLike {\n return value && isFunction(value.schedule);\n}\n", "import { SchedulerLike } from '../types';\nimport { isFunction } from './isFunction';\nimport { isScheduler } from './isScheduler';\n\nfunction last(arr: T[]): T | undefined {\n return arr[arr.length - 1];\n}\n\nexport function popResultSelector(args: any[]): ((...args: unknown[]) => unknown) | undefined {\n return isFunction(last(args)) ? args.pop() : undefined;\n}\n\nexport function popScheduler(args: any[]): SchedulerLike | undefined {\n return isScheduler(last(args)) ? args.pop() : undefined;\n}\n\nexport function popNumber(args: any[], defaultValue: number): number {\n return typeof last(args) === 'number' ? args.pop()! : defaultValue;\n}\n", "export const isArrayLike = ((x: any): x is ArrayLike => x && typeof x.length === 'number' && typeof x !== 'function');", "import { isFunction } from \"./isFunction\";\n\n/**\n * Tests to see if the object is \"thennable\".\n * @param value the object to test\n */\nexport function isPromise(value: any): value is PromiseLike {\n return isFunction(value?.then);\n}\n", "import { InteropObservable } from '../types';\nimport { observable as Symbol_observable } from '../symbol/observable';\nimport { isFunction } from './isFunction';\n\n/** Identifies an input as being Observable (but not necessary an Rx Observable) */\nexport function isInteropObservable(input: any): input is InteropObservable {\n return isFunction(input[Symbol_observable]);\n}\n", "import { isFunction } from './isFunction';\n\nexport function isAsyncIterable(obj: any): obj is AsyncIterable {\n return Symbol.asyncIterator && isFunction(obj?.[Symbol.asyncIterator]);\n}\n", "/**\n * Creates the TypeError to throw if an invalid object is passed to `from` or `scheduled`.\n * @param input The object that was passed.\n */\nexport function createInvalidObservableTypeError(input: any) {\n // TODO: We should create error codes that can be looked up, so this can be less verbose.\n return new TypeError(\n `You provided ${\n input !== null && typeof input === 'object' ? 'an invalid object' : `'${input}'`\n } where a stream was expected. You can provide an Observable, Promise, ReadableStream, Array, AsyncIterable, or Iterable.`\n );\n}\n", "export function getSymbolIterator(): symbol {\n if (typeof Symbol !== 'function' || !Symbol.iterator) {\n return '@@iterator' as any;\n }\n\n return Symbol.iterator;\n}\n\nexport const iterator = getSymbolIterator();\n", "import { iterator as Symbol_iterator } from '../symbol/iterator';\nimport { isFunction } from './isFunction';\n\n/** Identifies an input as being an Iterable */\nexport function isIterable(input: any): input is Iterable {\n return isFunction(input?.[Symbol_iterator]);\n}\n", "import { ReadableStreamLike } from '../types';\nimport { isFunction } from './isFunction';\n\nexport async function* readableStreamLikeToAsyncGenerator(readableStream: ReadableStreamLike): AsyncGenerator {\n const reader = readableStream.getReader();\n try {\n while (true) {\n const { value, done } = await reader.read();\n if (done) {\n return;\n }\n yield value!;\n }\n } finally {\n reader.releaseLock();\n }\n}\n\nexport function isReadableStreamLike(obj: any): obj is ReadableStreamLike {\n // We don't want to use instanceof checks because they would return\n // false for instances from another Realm, like an