200 and 204 response does not return message body stream (application/xml) - C# generated code

[AndrewZenith]

If the response has the possibility of no content (204) as well as with content (200), then the generated code does not give a response stream for the response body.

responses:
"200":
description: OK
content:
application/xml:
"204":
description: No Content

My expectation would be that it would!

[andrueastman]

Thanks for raising this @AndrewZenith

Any chance you can share the configuration parameters you are pssing to Kiota to generate the client? I suspect the issue here is related to the code here.

https://github.com/microsoft/kiota/blob/c9d44bf80225f44a2e54bdd39feb8093da7625ef/src/Kiota.Builder/KiotaBuilder.cs#L1333C29-L1333C63

[AndrewZenith]

Fri 07 02 2025 19:35:46: Executing:
Fri 07 02 2025 19:35:46: kiota --version
Fri 07 02 2025 19:35:46: 1.20.0+81bdb1bf13383a749f794d47926d09733d2d7be1
Fri 07 02 2025 19:35:46: Executing:
Fri 07 02 2025 19:35:46: kiota generate -l CSharp -d "D:\projects\MyCustoms\webapi\REST\HMRC\ICS2Outcomes\ICS2Outcomes.yaml" -o "C:\Users\andre\AppData\Local\Temp\4a8110b4-d130-454c-bf2b-e8eefdc27ed1" -n webapi.REST.HMRC.ICS2Outcomes --type-access-modifier Public
Fri 07 02 2025 19:35:47: A newer version of Kiota (1.23.0) is available. You are currently using version 1.20.0. https://aka.ms/get/kiota
Fri 07 02 2025 19:35:47: warn: Kiota.Builder.KiotaBuilder[0]
Fri 07 02 2025 19:35:47: OpenAPI warning: #/ - Multiple servers entries were found in the OpenAPI description. Only the first one will be used. The root URL can be set manually with the request adapter.
Fri 07 02 2025 19:35:48:
Fri 07 02 2025 19:35:48: Generation completed successfully
Fri 07 02 2025 19:35:48: Client base url set to https://test-api.service.hmrc.gov.uk