Introduction

In this article, I will demonstrate how to create and deploy a sample Cloud Functions function.

Create a Function

1. First, go to the Google Cloud Functions console and click the "CREATE FUNCTION" button.

2. Enter any function name in the "Function name" field, and click the "SAVE" button.

3. Click the "NEXT" button.

4. Write the code. For this tutorial, we will leave it as default and click the "DEPLOY" button.

Execute the Function

1. Attach a role that can execute the created function.

$ gcloud alpha functions add-iam-policy-binding sample-func \
  --region=us-central1 \
  --member=allUsers \
  --role=roles/cloudfunctions.invoker

2. Get the trigger URL for the created function.

$ gcloud functions describe demo-function --region us-central1 | grep url

3. Send a POST request to the trigger URL.

$ curl -X POST <trigger URL> \
   -H 'Content-Type:application/json' \
   -d '{"message":"Hello World!"}'

This will execute the function and return a response.

Hello World!

References

https://www.cloudskillsboost.google/focuses/1763?parent=catalog
https://www.cloudskillsboost.google/focuses/916?parent=catalog