bitcoind-wrapper

Install v0.2: hasura + subscriptions for websockets + front

• git clone https://github.com/aitorjs/bitcoind-wrapper
• cd bitcoind-wrapper
• make .env for front/bitcoind-zmq in front/bitcoind-zmq/.env with

VUE_APP_HASURA_PASS=secretkey
VUE_APP_HASURA_SCHEMA=ws://GRAPHQL_IP:8080/v1/graphql

• To change the configuration or want you need inside .bitcoin, use $HOME/cyphernode/bitcoin/ folder. Make bitcoin.conf here: regtest and testnet
• docker network create back
• docker network create front
• docker-compose up --build -d
• Create block table inside postgreql:

- docker exec -it bitcoindwrapper_postgres_1 bash
- wget https://raw.githubusercontent.com/aitorjs/bitcoind-wrapper/master/docker/dbexport.pgsql
- psql -U postgres postgres < dbexport.pgsql

• Open on browser for hasura console: http://VUE_IP:8080/. secretkey is the password.
• Inside "Data" => "Untracked tables or views", click on the "Track" button for block.
• Click "Remote Schemas" -> "Add"
• As "GraphQL server URL" add "http://bitcoind-rpc:9000/"
• Open on a browser frontend: http://VUE_IP:3001
• Generate new block

Generate new block inside bitcoin container on regtest

• Enter to container with docker exec -it bitcoind-wrapper_bitcoind_1 bash
• Generate new block: bitcoin-cli generatetoaddress [number-blocks] [address]
• List of all addresses of the node: bitcoin-cli getaddressesbylabel ""
• New bech32/segwit address: bitcoin-cli getnewaddress "main" "bech32"

bitcoin.conf example for regtest

# Use the regtest network, because we can generate blocks as needed.
regtest=1

server=1
rpcuser=paco
rpcpassword=paco

zmqpubhashblock=tcp://0.0.0.0:3000
zmqpubrawblock=tcp://0.0.0.0:3001
# zmqpubrawtx=tcp://0.0.0.0:3002
# zmqpubhashtx=tcp://0.0.0.0:3003
# blocknotify=/usr/bin/curl -X GET bitcoindwrapper:3000/bitcoin/newblock/%s -H "accept: application/json" -H "Authorization: Bearer YOUR-TOKEN"

[regtest]
# ATTENTION: VERY DANGEROUS OUTSIDE THE DOCKER NETWORK
rpcbind=0.0.0.0:18443
rpcallowip=0.0.0.0/0

bitcoin.conf example for testnet

testnet=1

server=1
rpcuser=paco
rpcpassword=paco

txindex=1

# In this example we are only interested in receiving raw transactions.
# The address here is the URL where bitcoind will listen for new ZeroMQ connection requests.
zmqpubhashblock=tcp://0.0.0.0:3000
zmqpubrawblock=tcp://0.0.0.0:3001
# zmqpubrawtx=tcp://0.0.0.0:3002
# zmqpubhashtx=tcp://0.0.0.0:3003
# blocknotify=/usr/bin/curl -X GET bitcoindwrapper:3000/bitcoin/newblock/%s -H "accept: application/json" -H "Authorization: Bearer YOUR-TOKEN"

[test]
# ATTENTION: VERY DANGEROUS OUTSIDE THE DOCKER NETWORK
rpcbind=0.0.0.0:18332
rpcallowip=0.0.0.0/0

• If the blockchain dont download blocks you need to open port 18443 (regtest) or 18332 (testnet) on the firewall

Bitcoin ports under different networks

    | Mainnet | Testnet | Regtest

Network | 8333 | 18333 | 18444 RPC | 8332 | 18332 | 18443

Pre-requisites

- sudo apt-get install git docker.io docker-compose
- sudo usermod -aG docker $USER
- reload pc

.cookie

paco:paco

Ports

• 8080: Hasura console
• 3001: frontend (8081 with npm run serve

Miscelania

TODO zmq

hasura call to getblockcount

curl 'http://VUE_IP:9000/' -H 'Accept-Encoding: gzip, deflate, br' -H 'Content-Type: application/json' -H 'Accept: application/json' -H 'Connection: keep-alive' -H 'DNT: 1' -H 'Origin: http://localhost:9000' --data-binary '{"query":"query {\n getblockcount {\n height\n }\n}"}' --compressed

curl -X POST http://VUE_IP:8080/v1/graphql -H 'x-hasura-admin-secret: secretkey' -H 'Content-Type: application/json' -d '{"query":"query{\n getblockcount {\n height\n }\n}"}'

bitcoin-rpc call to getblockcount

curl --user paco --data-binary '{"jsonrpc": "1.0", "id":"curltest", "method": "getblockcount", "params": [] }' -H 'content-type: text/plain;' http://bitcoind:18443

Add "Remote Schema" in hasura

• Go to hasura explorer: http://VUE_IP:8080/
• Click "Remote Schemas" -> "Add"
• As "GraphQL server URL" add "http://bitcoind-rpc:9000/"

Screenshot front/bitcoind-zmq

Rebuild bitcoind-zmq-front

• cd front/bitcoind-zmq
• npm run build
• docker build -t bitcoind-wrapper_bitcoind-zmq-front . ¿can delete this tep?
• cd .. && cd .. && docker-compose up --build -d

For other containers

• docker stop
• docker-compose up --build -d

Getblock in graphql

query MyQuery { getblock(hash: "5dee5822368296e72c64bd1ba57bc6d038aecff38b0905416dfb544c3c2d2105") { bits tx { hash hex locktime size txid version vsize weight vin { coinbase sequence } vout { n scriptPubKey { addresses asm hex type reqSigs } value } } height } }

About posgreql

pg_dump -U postgres postgres > dbexport.pgsql

postgrespassword

docker exec -t bitcoindwrapper_postgres_1 psql -U postgres postgres < /var/lib/postgresql/data/dbexport.pgsql

posgreql volume data is stored inside docker in /var/lib/docker/volumes/bitcoindwrapper_db_data/_data