# WebSocket

## Overview

The Websocket API allows developers to subscribe to processed events from a Joule process. This is useful for validating processing streams.

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{% openapi src="<https://3062398388-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FUU6FZlV07ZD90OzbzGww%2Fuploads%2FwsbKvpoD11cLGV2xB6Dl%2Fswagger-docs.json?alt=media&token=7d415513-0de4-40a2-9b02-d35b6d39c86f>" path="/joule/ws/stream/{topicId}" method="get" %}
[swagger-docs.json](https://3062398388-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FUU6FZlV07ZD90OzbzGww%2Fuploads%2FwsbKvpoD11cLGV2xB6Dl%2Fswagger-docs.json?alt=media\&token=7d415513-0de4-40a2-9b02-d35b6d39c86f)
{% endopenapi %}
