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Giles Odigwe
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* feat(a2a): use non-streaming transport and return_immediately for background ops When stream=False, use a client configured with streaming=False so the SDK sends a single HTTP POST to message/send instead of opening an SSE connection via message/stream. This matches the A2A protocol's design: non-streaming calls use direct request/response, streaming calls use Server-Sent Events. Also sets return_immediately=background on SendMessageConfiguration so the server respects the caller's intent for background operations. Changes: - Create separate streaming and non-streaming internal clients (sharing the same httpx connection pool) to match protocol transport semantics - Select non-streaming client for run(stream=False) calls - Add SendMessageConfiguration with return_immediately=background - Fallback to streaming client when non-streaming unavailable (e.g. user provides their own client via constructor) - Add tests for client selection and return_immediately behavior Resolves microsoft/agent-framework#5936 Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> * fix: address PR review feedback - Initialize last_request in MockA2AClient.__init__ for explicit state - Use 'is not None' instead of truthiness for _non_streaming_client check - Assert return_immediately propagates through non-streaming client path Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> * fix: only set configuration when background=True Only attach SendMessageConfiguration to the request when background=True, keeping requests minimal and preserving server-side defaults for normal (foreground) operations. This follows the framework pattern of only setting optional fields when they have meaningful values. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> * fix: only set return_immediately for non-streaming background ops Per the A2A spec, return_immediately only applies to message/send (non-streaming). It has no effect on streaming operations. Only set the configuration field when both background=True and stream=False. Adds test verifying streaming+background does not set return_immediately. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> --------- Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
289cafcf36
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