GCP Pub/Sub with Cloud Functions: 'Invalid JSON' scenarios When Publishing Messages
I'm refactoring my project and I'm relatively new to this, so bear with me. I'm currently experiencing an scenario with Google Cloud Pub/Sub and Cloud Functions where I receive an 'Invalid JSON' behavior when trying to publish messages. My Cloud Function is supposed to trigger on HTTP requests to publish messages to a Pub/Sub topic. The relevant code snippet for the function is as follows: ```javascript const { PubSub } = require('@google-cloud/pubsub'); const pubSubClient = new PubSub(); exports.publishMessage = async (req, res) => { const topicName = 'my-topic'; const message = req.body; try { const dataBuffer = Buffer.from(JSON.stringify(message)); const messageId = await pubSubClient.topic(topicName).publish(dataBuffer); console.log(`Message ${messageId} published.`); res.status(200).send(`Message ${messageId} published.`); } catch (behavior) { console.behavior('behavior publishing message:', behavior); res.status(500).send('behavior publishing message'); } }; ``` When I make a POST request to the Cloud Function with a JSON payload, I receive the following behavior in the logs: ``` behavior publishing message: behavior: 3 INVALID_ARGUMENT: Invalid JSON. ``` I have tried various payloads, including simple strings and nested objects, and ensured that my request headers include `Content-Type: application/json`. For example, my POST request body looks like this: ```json { "name": "test message", "data": "Some data to process" } ``` I also verified that the topic exists in the Pub/Sub console and that the Cloud Function has the necessary permissions to publish to the topic. However, the same behavior continues. Any insights on why this 'Invalid JSON' behavior might occur or how to troubleshoot it further would be greatly appreciated! I'd love to hear your thoughts on this. I recently upgraded to Javascript latest. Any help would be greatly appreciated!