fix: allow null id in JSONRPCError per JSON-RPC 2.0 spec (#2056)

2026-02-17 10:30:34 +00:00 · 2026-02-17 10:30:34 +00:00 · 705497a593
commit 705497a593
parent 3b53fb9a00
1 changed files with 151 additions and 24 deletions
--- a/src/mcp/server/sse.py
+++ b/src/mcp/server/sse.py
@ -170,7 +170,7 @@ class SseServerTransport:
                    await sse_stream_writer.send(
                        {
                            "event": "message",
-                            "data": session_message.message.model_dump_json(by_alias=True, exclude_none=True),
+                            "data": session_message.message.model_dump_json(by_alias=True, exclude_unset=True),
                        }
                    )