Question

How can I filter out high-volume events from a specific user at the Segment Source level?

Product

Twilio Segment

Environment

Segment Console

Answer

Events from a specific user or group can be stopped from ingesting into Segment using a Source Insert Function. Source Insert Functions allow you to execute custom code to inspect and transform event payloads before they are fully processed by the Segment ingestion pipeline.

By deploying an insert function on your source, you can check specific payload properties, such as context.groupId or userId. If the property matches the specific user you want to block, you can programmatically drop the event by returning null. 

Additional Information

For more details on creating and deploying this code, refer to the Segment Documentation: Source Insert Functions.