> For the complete documentation index, see [llms.txt](https://docs.rierino.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.rierino.com/devops/administration/streaming-messages.md).

# Streaming Messages

Message center allows sending custom text messages to a data stream.

Messages can be used for manually triggering actions for diagnosis, testing or manipulation purposes.

Only a few parameters are required for sending a message:

* **Script:** Body of the message to send, typically in Json form
* **System:** Name of the target system, as defined in API gateway (e.g. kafka\_default)
* **Topic:** Topic inside target system to publish on (e.g. manual\_trigger)
* **Key:** Key value for the message


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