Azure Service Bus output binding for Azure Functions is limited to message body

[ChuckJonas]

The way the service bus output bindings are implement seem to only support the message body... You can't set messageId, sessionId, applicationProperties, etc. This makes it useless almost any real world use cases.

Are there plans to properly implement this binding?

Found these related "User Voice" issues, but they are stale and have no comments addressing this issue:

https://feedback.azure.com/d365community/idea/eea36d62-f224-ec11-b6e6-000d3a4f0da0
https://feedback.azure.com/d365community/idea/df849c4f-f224-ec11-b6e6-000d3a4f0da0

[ramya894]

@ChuckJonas We will check this with our next level team and update you with the information.

[chrisaliotta]

I would love for this issue to get some attention. We use sessions with Azure Service Bus messaging and would like to use the attribute output binding functionality.

I'd like to propose that returning an object of type ServiceBusMessage with those attributes set would be one possible solution when considering how to implement this with output bindings.

[bhagyshricompany]

It sounds like you are suggesting that an output binding for Azure Service Bus messaging be created that allows for setting attributes on a ServiceBusMessage object. This could be a useful feature for those using sessions with Azure Service Bus messaging, as it would allow them to easily set attributes on the messages they send. However, I am not aware of any plans to implement this feature at this time. will check with our next level team

[dengere]

I am really wondering that extensions ServiceBus is version="5.7.0" but it does not encapsulate ServiceBus functionality and capability already. Who can guess which version will be eligible for Azure Service Bus?

Please follow this step.
1 . create Queue on the Azure.
2. You will see on the create panel "Enable Sessions" (bingo!) click it.
3. Try to send any message to this queue with ServiceBusOutput.

I bet you can not send.

All people last 4 years ask this simple question. If someone know solution with ServiceBusOutput I'd like to know it.

[akisiel1]

Same problem, couldn't find any other workaround then sending a message with Sender instead of output biding...

[jhofer]

We had the same Issue. Would realy help if it would be possible to return an instance of ServiceBusMessage

[chrisaliotta]

Can anyone identify where the response object is being created/handled in the dotnet code? From what I've seen is that there are several "extension classes" that are used, but I've been having a hard time finding the actual factory/builder classes for these different trigger and response types. If anyone can help me find where this occurs, I wouldn't be against trying to write the code to get this feature to work (who knows, it might actually get accepted!).

[bhagyshricompany]

@fabiocav pls comment and validate.

[sudeep1607]

Is it possible to set the contentType for a message as text/plain while using Service Bus output bindings in Function Apps?

[Petit-Pas]

I have an Azure function which I'm upgrading to Isolated mode in .Net 7.
The function was listening from a topic, then reposting the message in a queue with sessions enabled.

The migration of the listening part went just fine, but when the function returns, I get an error stating that the sessionId has an invalid value, and that it should be defined when posting to a queue.
Problem is, nothing changed in the code that generates the message, and I though ServiceBusMessage would be supported just the way it was before, so I have an output binding with [ServiceBusOutput] set on a List of ServiceBusMessage, but then I guess that it just gets deserialized as any object and the metadata is ignored...

Is there at least any work around for this ? I don't mind not being able to play with the output binding, but if there is no way to specify the SessionId, this is really making the isolated mode unusable for certain workflows.

[alex-quest]

Any progress on this issue?