To set up a Google Cloud Function to trigger on a specific event, you first need to create the function. In the GCP Console, navigate to the Cloud Functions section and click “Create Function”. Name your function and choose the appropriate runtime environment.
Next, specify the trigger type. This could be HTTP, Pub/Sub, Firestore, etc., depending on the event you want to trigger the function. If it’s an HTTP trigger, you’ll receive a URL that can be used to call the function. For other triggers like Pub/Sub or Firestore, you need to specify the topic or document path respectively.
In the ‘Function to execute’ field, enter the name of your function in the code. Then, write your function code in the inline editor or upload a zip file containing your code. The function should be designed to handle the event data from the specified trigger.
Finally, deploy the function. Once deployed, the function will automatically run whenever the specified event occurs.