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Google Pub/Sub

Consume Google Pub/Sub API (v.0.3.11)
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Overview

This node interacts with Google Cloud Pub/Sub to acknowledge messages received from a subscription. It is useful in scenarios where you want to confirm receipt of messages to prevent their redelivery, such as in message processing workflows or event-driven automation. For example, after pulling messages from a subscription, you can use this node to acknowledge those messages, ensuring they are not delivered again.

Use Case Examples

  1. Acknowledging messages pulled from a Google Pub/Sub subscription to confirm processing.
  2. Automating message acknowledgment in a workflow that processes events from a Pub/Sub topic.

Properties

Name Meaning
Project ID Google Cloud project id where the Pub/Sub subscription exists.
Subscription Name of the Google Pub/Sub subscription from which messages are acknowledged.
Acknowledge IDs List of acknowledge IDs to confirm receipt of messages. Can be provided as a JSON array or as individual IDs via UI.
JSON Acknowledge IDs Boolean flag to specify whether the acknowledge IDs are provided as JSON or via the UI.

Output

JSON

  • success - Indicates if the acknowledgment operation was successful.

Dependencies

  • Google Cloud Pub/Sub API
  • Google Auth Library for authentication

Troubleshooting

  • Ensure valid Google API credentials are provided; missing credentials will cause errors.
  • Subscription name must be correct and accessible within the specified project.
  • Acknowledging a message whose ack deadline has expired may succeed but the message might be redelivered later.
  • Providing acknowledge IDs in incorrect format (JSON vs UI) can cause failures; ensure the 'JSON Acknowledge IDs' flag matches the input format.

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