Query Parameters are not sent to the Data Sink

[simonlet]

When going through the code of the EDC, I found that the Query Parameters for the Data Sink are not being mapped and always overwritten with null.

Here is the part of the code where it happens:
https://github.com/eclipse-edc/Connector/blob/bugfix/0.11.1/extensions/data-plane/data-plane-http/src/main/java/org/eclipse/edc/connector/dataplane/http/params/decorators/BaseSinkHttpParamsDecorator.java#L32

On the other hand, for the Data Source, the query params are mapped:
https://github.com/eclipse-edc/Connector/blob/bugfix/0.11.1/extensions/data-plane/data-plane-http/src/main/java/org/eclipse/edc/connector/dataplane/http/params/decorators/BaseSourceHttpParamsDecorator.java#L46

My question is, if this is a bug or intended behavior, so should you not be allowed to send query parameters to the data sink?

Thanks for your help!

[ndr-brt]

Please note that the EDC Data-Plane has been deprecated and it will be removed in the next versions:
https://eclipse-edc.github.io/blog/2026/01/19/data-plane-signaling/

So also if that's a bug/missing behavior, there won't be much interest in having it resolved.