README.md

Cloud function with http trigger type

Google Cloud Function triggered by HTTP call. It means that we can directly invoke the function via a HTTPs endpoint.

This function is simple example of cloud function with http trigger type which send message to Slack channel via webhook. We will use test slack channel test-webshop-cf to test how this function works.

Runtime: Node.js

Guidebook to run this function

1. Clone this repo

git clone git@github.com:lemon57/cloud-function-http-trigger-js.git

2. Define Slack webhook url in .env file. You can find the webhook url -> Slack channel webhook.
3. Deploy this function to GC. Wait a few min ☕

gcloud functions deploy <CF_NAME> <TRIGGER_TYPE> \
 --region=<REGION_NAME> \
 --runtime=<CF_RUNTIME>

Replace CF_NAME by your own name of this function.
Replace TRIGGER_TYPE by correct trigger type for current function. In this case it is --trigger-http
Replace REGION_NAME by region of current project, in our case is europe-west1
Replace CF_RUNTIME by actual runtime, in our case is nodejs16.

4. Check that the function deployed successfully: by command or through GCC UI.

gcloud functions describe <CF_NAME> --region=<REGION_NAME>

5. Invoke function by command:

gcloud functions call \
   --data '{"message":"Hello from boozt GCF workshop. Created by {your_name}"}' \
   <CF_NAME> --region=<REGION_NAME>

or by curl command

curl -H "Content-Type: application/json" \
   -X POST \
   -d '{"message":"Trigger GCF by curl command. By {your_name}"}' \
   https://<REGION>-<PROJECT_ID>.cloudfunctions.net/<NAME>

6. Check the logs:

gcloud functions logs read --execution-id=<EXECUTION_ID> --region=<REGION_NAME>

Take EXECUTION_ID from the output after executing the command: gcloud functions call. 7. Check slack channel test-webshop-cf

Enjoy 🎆