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/client/streamable_http.py
+++ b/src/mcp/client/streamable_http.py
@ -260,7 +260,7 @@ class StreamableHTTPTransport:
        async with ctx.client.stream(
            "POST",
            self.url,
-            json=message.model_dump(by_alias=True, mode="json", exclude_none=True),
+            json=message.model_dump(by_alias=True, mode="json", exclude_unset=True),
            headers=headers,
        ) as response:
            if response.status_code == 202: