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

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Max Isbey 2026-02-17 10:30:34 +00:00 • committed by GitHub
commit 705497a593
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GPG key ID: B5690EEEBB952194
4 changed files with 151 additions and 24 deletions
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2
src/mcp/client/sse.py
View file

@ -138,7 +138,7 @@ async def sse_client(
json=session_message.message.model_dump(
by_alias=True,
mode="json",
exclude_none=True,
exclude_unset=True,
),
)
response.raise_for_status()

2
src/mcp/client/stdio.py
View file

@ -167,7 +167,7 @@ async def stdio_client(server: StdioServerParameters, errlog: TextIO = sys.stder
try:
async with write_stream_reader:
async for session_message in write_stream_reader:
json = session_message.message.model_dump_json(by_alias=True, exclude_none=True)
json = session_message.message.model_dump_json(by_alias=True, exclude_unset=True)
await process.stdin.send(
(json + "\n").encode(
encoding=server.encoding,

2
src/mcp/client/streamable_http.py
View file

@ -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:

2
src/mcp/client/websocket.py
View file

@ -65,7 +65,7 @@ async def websocket_client(
async with write_stream_reader:
async for session_message in write_stream_reader:
# Convert to a dict, then to JSON
msg_dict = session_message.message.model_dump(by_alias=True, mode="json", exclude_none=True)
msg_dict = session_message.message.model_dump(by_alias=True, mode="json", exclude_unset=True)
await ws.send(json.dumps(msg_dict))
async with anyio.create_task_group() as tg: