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fix: catch and rethrow SSEError during SSE connection establishment #975

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Merged
felixweinberger merged 2 commits into from
Sep 30, 2025
Merged

fix: catch and rethrow SSEError during SSE connection establishment #975

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6b60cb7
fix: catch and rethrow SSEError during SSE connection establishment
Jun 18, 2025
b34f51c
Use logger.exception for SSE error logging
felixweinberger Sep 30, 2025
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4 changes: 4 additions & 0 deletions 4 src/mcp/client/sse.py
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Original file line number Diff line number Diff line change
Expand Up @@ -8,6 +8,7 @@
from anyio.abc import TaskStatus
from anyio.streams.memory import MemoryObjectReceiveStream, MemoryObjectSendStream
from httpx_sse import aconnect_sse
from httpx_sse._exceptions import SSEError

import mcp.types as types
from mcp.shared._httpx_utils import McpHttpClientFactory, create_mcp_http_client
Expand Down Expand Up @@ -105,6 +106,9 @@ async def sse_reader(
await read_stream_writer.send(session_message)
case _:
logger.warning(f"Unknown SSE event: {sse.event}")
except SSEError as sse_exc:
logger.exception("Encountered SSE exception")
raise sse_exc
except Exception as exc:
logger.error(f"Error in sse_reader: {exc}")
await read_stream_writer.send(exc)
Expand Down
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