Publish
- Updated2025-07-28
- 1 minute(s) read
Writes a message to a topic, which immediately sends the message to subscribers of the topic.
Subscribers of a topic receive every message published to the topic.

Inputs/Outputs
message session in
Synchronous message session established with the server.
topic
Channel to which endpoints publish or subscribe messages.
message
Text published for subscribers of a topic to read, if a message exists.
error in
Error conditions that occur before this node runs.
The node responds to this input according to standard error behavior.
Default value: No error
message session out
Synchronous message session established with the server.
error out
Error information.
The node produces this output according to standard error behavior.