👀 Views: 120 💬 Answers: 1 📅 Created: 2025-06-05

GCP Cloud Functions Pub/Sub Cloud Storage javascript

This might be a silly question, but I'm working on a project and hit a roadblock... I'm deploying a Cloud Function in GCP that should handle events from both Pub/Sub and Cloud Storage, but I'm running into issues configuring multiple triggers. I want the same function to respond to messages published to a specific Pub/Sub topic and also to respond to changes (like new file uploads) in a specific Cloud Storage bucket. I've set it up as follows: ```javascript const { Storage } = require('@google-cloud/storage'); const { PubSub } = require('@google-cloud/pubsub'); exports.myFunction = (data, context) => { const eventType = context.eventType; if (eventType === 'google.storage.object.finalize') { console.log(`File ${data.name} uploaded to ${data.bucket}.`); } else if (eventType === 'google.pubsub.topic.publish') { const message = Buffer.from(data.data, 'base64').toString(); console.log(`Message received: ${message}`); } }; ``` However, when I deploy the function, I get an behavior indicating that the function can only have one trigger type. The behavior message states: `behavior: Could not create function: Function want to have more than one trigger.` I've tried deploying the function with just Pub/Sub and then with just Cloud Storage, which works fine separately, but I need to seem to find a way to combine the two. I looked into using an intermediary service like Cloud Run, but that seems more complex than I need for this task. Is there a recommended way to handle multiple triggers in GCP Cloud Functions? Should I be using a different approach or pattern altogether? Any help would be appreciated. This is part of a larger web app I'm building. I'd really appreciate any guidance on this.