Skip to content

Add optional headers argument to websocket transport #455

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Closed
wants to merge 3 commits into from
Closed

Add optional headers argument to websocket transport #455

Changes from all commits
Commits
Show all changes
3 commits
Select commit Hold shift + click to select a range
fddc22d
headers in handshake
andrewmjc Apr 8, 2025
7f7c29c
format
andrewmjc Apr 8, 2025
5a69984
Merge branch 'main' into addWebSocketHandshakeHeaders
andrewmjc Apr 19, 2025
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
6 changes: 5 additions & 1 deletion src/mcp/client/websocket.py
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -2,6 +2,7 @@
import logging
from collections.abc import AsyncGenerator
from contextlib import asynccontextmanager
from typing import Any

import anyio
from anyio.streams.memory import MemoryObjectReceiveStream, MemoryObjectSendStream
Expand All @@ -17,6 +18,7 @@
@asynccontextmanager
async def websocket_client(
url: str,
headers: dict[str, Any] | None = None,
) -> AsyncGenerator[
tuple[
MemoryObjectReceiveStream[types.JSONRPCMessage | Exception],
Expand Down Expand Up @@ -48,7 +50,9 @@ async def websocket_client(
write_stream, write_stream_reader = anyio.create_memory_object_stream(0)

# Connect using websockets, requesting the "mcp" subprotocol
async with ws_connect(url, subprotocols=[Subprotocol("mcp")]) as ws:
async with ws_connect(
url, subprotocols=[Subprotocol("mcp")], additional_headers=headers
) as ws:

async def ws_reader():
"""
Expand Down
Loading