👀 Views: 43 💬 Answers: 1 📅 Created: 2025-09-01

gcp pubsub node.js javascript

I'm building a feature where I'm attempting to set up I'm facing an issue with message acknowledgment delays in my GCP Pub/Sub setup using the Node.js client... My application processes messages from a subscription, but I've noticed that some messages are being redelivered even after I've acknowledged them. Here's a snippet of how I’m currently handling message processing: ```javascript const { PubSub } = require('@google-cloud/pubsub'); const pubsub = new PubSub(); const subscriptionName = 'your-subscription-name'; const subscription = pubsub.subscription(subscriptionName); const messageHandler = message => { console.log(`Received message: ${message.id}`); // Simulate some processing time setTimeout(() => { console.log(`Processing message: ${message.id}`); message.ack(); }, 10000); // Acknowledging after 10 seconds }; subscription.on('message', messageHandler); ``` I've set a delay of 10 seconds for message acknowledgment to simulate processing time. However, I still receive duplicate messages after the acknowledgment, which seems like the acknowledgment isn't being processed correctly. I checked the Pub/Sub metrics, and I see spikes in the redelivered messages count, which suggests that the subscriber might be timing out or that the acknowledgment isn't reaching the server. I’ve already tried increasing the message acknowledgment deadline using `subscription.modifyAckDeadline()` method, but it doesn’t seem to resolve the issue. I'm also aware that my processing might be taking too long, but I need this delay for my use case. Is there a recommended way to handle long processing times with GCP Pub/Sub to ensure that messages are acknowledged properly? Any insights into configuring the acknowledgment settings or optimizing message handling would be appreciated. I'm working on a CLI tool that needs to handle this. What's the best practice here? Is there a better approach? I'm working with Javascript in a Docker container on Ubuntu 20.04. I'm working with Javascript in a Docker container on Ubuntu 22.04. Has anyone dealt with something similar?