wehub-resource-sync
49b9bb6724
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41 lines
1.5 KiB
Python
41 lines
1.5 KiB
Python
"""Receive `notifications/resources/list_changed` over the standalone GET stream, then re-list."""
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import anyio
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import mcp_types as types
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from mcp.client import Client
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from stories._harness import Target, run_client
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async def main(target: Target, *, mode: str = "auto") -> None:
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# `message_handler` is constructor-only on `Client`, so the event it sets
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# has to exist before the connection does.
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received: list[types.ResourceListChangedNotification] = []
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seen = anyio.Event()
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async def on_message(message: object) -> None:
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if isinstance(message, types.ResourceListChangedNotification):
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received.append(message)
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seen.set()
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async with Client(target, mode=mode, message_handler=on_message) as client:
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before = await client.list_resources()
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assert len(before.resources) >= 1, before
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result = await client.call_tool("add_note", {"content": "hello"})
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assert not result.is_error, result
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# The notification rides the standalone GET stream, not the call's POST stream —
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# delivery order vs the tool result is not guaranteed, so wait.
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with anyio.fail_after(5):
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await seen.wait()
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assert len(received) == 1, received
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after = await client.list_resources()
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assert len(after.resources) == len(before.resources) + 1, after
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assert {r.name for r in after.resources} >= {"initial", "note-1"}
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if __name__ == "__main__":
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run_client(main)
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