The following types of WebSphere MQ Telemetry Transport command message have a payload in the message header:
The payload part of a PUBLISH message contains application-specific data only. No assumptions are made about the nature or content of the data, and this part of the message is treated as a BLOB.
If you want an application to apply compression to the payload data, you need to define in the application the appropriate payload flag fields to handle the compression details. You cannot define application-specific flags in the fixed or variable headers.
Related concepts
WebSphere MQ Telemetry Transport
Related reference
CONNECT Client requests a connection to a broker
SUBSCRIBE Subscribe to named topics
SUBACK Subscription acknowledgement
PUBLISH Publish message
WebSphere MQ Telemetry Transport fixed header
WebSphere MQ Telemetry Transport variable header
WebSphere MQ Telemetry Transport Quality of Service levels and flows
WebSphere MQ Telemetry Transport and UTF-8
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