Professional Cloud Architect – Google Cloud Certification Guide

Triggers

After defining the necessary parameters, you can define the following triggers, depending on how you want your function to be initiated.

To define an HTTP trigger, use the following command:

--trigger-http    

An endpoint will be assigned to the function.

To trigger a function on changes to a Cloud Storage bucket, use the following command:

--trigger-bucket=$TRIGGER_BUCKET   

Here, we have the following option:

• $TRIGGER_BUCKET: Google Cloud Storage bucket name. Every change that's made to the files in this bucket will trigger function execution.

To trigger a function on messages that are arriving in a Pub/Sub queue, use the following command:

--trigger-topic=$TRIGGER_TOPIC    

Here, we have the following option:

• $TRIGGER_TOPIC: Name of ...