mirror of
https://github.com/aljazceru/mcp-python-sdk.git
synced 2025-12-19 14:54:24 +01:00
Don't re-export types
We will be a bit more low level and expect callees to import mcp.types instead of relying in re-exported types. This makes usage more explicit and avoids potential collisions in mcp.server.
This commit is contained in:
David Soria Parra
@@ -5,83 +5,54 @@ from pydantic import AnyUrl
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from mcp.shared.session import BaseSession
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from mcp.shared.version import SUPPORTED_PROTOCOL_VERSIONS
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from mcp.types import (
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LATEST_PROTOCOL_VERSION,
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CallToolResult,
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ClientCapabilities,
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ClientNotification,
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ClientRequest,
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ClientResult,
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CompleteResult,
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EmptyResult,
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GetPromptResult,
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Implementation,
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InitializedNotification,
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InitializeResult,
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JSONRPCMessage,
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ListPromptsResult,
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ListResourcesResult,
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ListToolsResult,
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LoggingLevel,
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PromptReference,
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ReadResourceResult,
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ResourceReference,
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RootsCapability,
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ServerNotification,
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ServerRequest,
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)
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import mcp.types as types
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class ClientSession(
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BaseSession[
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ClientRequest,
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ClientNotification,
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ClientResult,
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ServerRequest,
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ServerNotification,
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types.ClientRequest,
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types.ClientNotification,
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types.ClientResult,
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types.ServerRequest,
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types.ServerNotification,
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]
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):
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def __init__(
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self,
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read_stream: MemoryObjectReceiveStream[JSONRPCMessage | Exception],
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write_stream: MemoryObjectSendStream[JSONRPCMessage],
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read_stream: MemoryObjectReceiveStream[types.JSONRPCMessage | Exception],
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write_stream: MemoryObjectSendStream[types.JSONRPCMessage],
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read_timeout_seconds: timedelta | None = None,
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) -> None:
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super().__init__(
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read_stream,
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write_stream,
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ServerRequest,
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ServerNotification,
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types.ServerRequest,
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types.ServerNotification,
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read_timeout_seconds=read_timeout_seconds,
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)
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async def initialize(self) -> InitializeResult:
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from mcp.types import (
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InitializeRequest,
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InitializeRequestParams,
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)
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async def initialize(self) -> types.InitializeResult:
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result = await self.send_request(
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ClientRequest(
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InitializeRequest(
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types.ClientRequest(
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types.InitializeRequest(
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method="initialize",
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params=InitializeRequestParams(
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protocolVersion=LATEST_PROTOCOL_VERSION,
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capabilities=ClientCapabilities(
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params=types.InitializeRequestParams(
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protocolVersion=types.LATEST_PROTOCOL_VERSION,
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capabilities=types.ClientCapabilities(
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sampling=None,
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experimental=None,
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roots=RootsCapability(
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roots=types.RootsCapability(
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# TODO: Should this be based on whether we
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# _will_ send notifications, or only whether
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# they're supported?
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listChanged=True
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),
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),
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clientInfo=Implementation(name="mcp", version="0.1.0"),
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clientInfo=types.Implementation(name="mcp", version="0.1.0"),
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),
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)
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),
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InitializeResult,
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types.InitializeResult,
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)
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if result.protocolVersion not in SUPPORTED_PROTOCOL_VERSIONS:
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@@ -91,40 +62,33 @@ class ClientSession(
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)
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await self.send_notification(
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ClientNotification(
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InitializedNotification(method="notifications/initialized")
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types.ClientNotification(
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types.InitializedNotification(method="notifications/initialized")
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)
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)
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return result
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async def send_ping(self) -> EmptyResult:
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async def send_ping(self) -> types.EmptyResult:
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"""Send a ping request."""
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from mcp.types import PingRequest
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return await self.send_request(
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ClientRequest(
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PingRequest(
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types.ClientRequest(
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types.PingRequest(
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method="ping",
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)
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),
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EmptyResult,
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types.EmptyResult,
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)
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async def send_progress_notification(
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self, progress_token: str | int, progress: float, total: float | None = None
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) -> None:
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"""Send a progress notification."""
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from mcp.types import (
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ProgressNotification,
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ProgressNotificationParams,
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)
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await self.send_notification(
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ClientNotification(
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ProgressNotification(
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types.ClientNotification(
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types.ProgressNotification(
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method="notifications/progress",
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params=ProgressNotificationParams(
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params=types.ProgressNotificationParams(
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progressToken=progress_token,
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progress=progress,
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total=total,
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@@ -133,180 +97,137 @@ class ClientSession(
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)
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)
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async def set_logging_level(self, level: LoggingLevel) -> EmptyResult:
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async def set_logging_level(self, level: types.LoggingLevel) -> types.EmptyResult:
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"""Send a logging/setLevel request."""
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from mcp.types import (
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SetLevelRequest,
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SetLevelRequestParams,
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)
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return await self.send_request(
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ClientRequest(
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SetLevelRequest(
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types.ClientRequest(
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types.SetLevelRequest(
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method="logging/setLevel",
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params=SetLevelRequestParams(level=level),
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params=types.SetLevelRequestParams(level=level),
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)
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),
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EmptyResult,
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types.EmptyResult,
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)
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async def list_resources(self) -> ListResourcesResult:
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async def list_resources(self) -> types.ListResourcesResult:
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"""Send a resources/list request."""
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from mcp.types import (
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ListResourcesRequest,
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)
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return await self.send_request(
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ClientRequest(
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ListResourcesRequest(
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types.ClientRequest(
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types.ListResourcesRequest(
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method="resources/list",
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)
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),
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ListResourcesResult,
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types.ListResourcesResult,
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)
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async def read_resource(self, uri: AnyUrl) -> ReadResourceResult:
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async def read_resource(self, uri: AnyUrl) -> types.ReadResourceResult:
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"""Send a resources/read request."""
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from mcp.types import (
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ReadResourceRequest,
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ReadResourceRequestParams,
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)
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return await self.send_request(
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ClientRequest(
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ReadResourceRequest(
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types.ClientRequest(
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types.ReadResourceRequest(
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method="resources/read",
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params=ReadResourceRequestParams(uri=uri),
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params=types.ReadResourceRequestParams(uri=uri),
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)
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),
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ReadResourceResult,
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types.ReadResourceResult,
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)
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async def subscribe_resource(self, uri: AnyUrl) -> EmptyResult:
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async def subscribe_resource(self, uri: AnyUrl) -> types.EmptyResult:
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"""Send a resources/subscribe request."""
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from mcp.types import (
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SubscribeRequest,
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SubscribeRequestParams,
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)
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return await self.send_request(
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ClientRequest(
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SubscribeRequest(
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types.ClientRequest(
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types.SubscribeRequest(
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method="resources/subscribe",
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params=SubscribeRequestParams(uri=uri),
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params=types.SubscribeRequestParams(uri=uri),
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)
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),
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EmptyResult,
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types.EmptyResult,
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)
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async def unsubscribe_resource(self, uri: AnyUrl) -> EmptyResult:
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async def unsubscribe_resource(self, uri: AnyUrl) -> types.EmptyResult:
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"""Send a resources/unsubscribe request."""
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from mcp.types import (
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UnsubscribeRequest,
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UnsubscribeRequestParams,
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)
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return await self.send_request(
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ClientRequest(
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UnsubscribeRequest(
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types.ClientRequest(
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types.UnsubscribeRequest(
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method="resources/unsubscribe",
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params=UnsubscribeRequestParams(uri=uri),
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params=types.UnsubscribeRequestParams(uri=uri),
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)
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),
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EmptyResult,
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types.EmptyResult,
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)
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async def call_tool(
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self, name: str, arguments: dict | None = None
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) -> CallToolResult:
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) -> types.CallToolResult:
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"""Send a tools/call request."""
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from mcp.types import (
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CallToolRequest,
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CallToolRequestParams,
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)
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return await self.send_request(
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ClientRequest(
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CallToolRequest(
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types.ClientRequest(
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types.CallToolRequest(
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method="tools/call",
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params=CallToolRequestParams(name=name, arguments=arguments),
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params=types.CallToolRequestParams(name=name, arguments=arguments),
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)
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),
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CallToolResult,
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types.CallToolResult,
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)
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async def list_prompts(self) -> ListPromptsResult:
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async def list_prompts(self) -> types.ListPromptsResult:
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"""Send a prompts/list request."""
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from mcp.types import ListPromptsRequest
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return await self.send_request(
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ClientRequest(
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ListPromptsRequest(
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types.ClientRequest(
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types.ListPromptsRequest(
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method="prompts/list",
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)
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),
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ListPromptsResult,
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types.ListPromptsResult,
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)
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async def get_prompt(
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self, name: str, arguments: dict[str, str] | None = None
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) -> GetPromptResult:
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) -> types.GetPromptResult:
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"""Send a prompts/get request."""
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from mcp.types import GetPromptRequest, GetPromptRequestParams
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return await self.send_request(
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ClientRequest(
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GetPromptRequest(
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types.ClientRequest(
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types.GetPromptRequest(
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method="prompts/get",
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params=GetPromptRequestParams(name=name, arguments=arguments),
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params=types.GetPromptRequestParams(name=name, arguments=arguments),
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)
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),
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GetPromptResult,
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types.GetPromptResult,
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)
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async def complete(
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self, ref: ResourceReference | PromptReference, argument: dict
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) -> CompleteResult:
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self, ref: types.ResourceReference | types.PromptReference, argument: dict
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) -> types.CompleteResult:
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"""Send a completion/complete request."""
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from mcp.types import (
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CompleteRequest,
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CompleteRequestParams,
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CompletionArgument,
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)
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return await self.send_request(
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ClientRequest(
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CompleteRequest(
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types.ClientRequest(
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types.CompleteRequest(
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method="completion/complete",
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params=CompleteRequestParams(
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params=types.CompleteRequestParams(
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ref=ref,
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argument=CompletionArgument(**argument),
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argument=types.CompletionArgument(**argument),
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),
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)
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),
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CompleteResult,
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types.CompleteResult,
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)
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async def list_tools(self) -> ListToolsResult:
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async def list_tools(self) -> types.ListToolsResult:
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"""Send a tools/list request."""
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from mcp.types import ListToolsRequest
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return await self.send_request(
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ClientRequest(
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ListToolsRequest(
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types.ClientRequest(
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types.ListToolsRequest(
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method="tools/list",
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)
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),
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ListToolsResult,
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types.ListToolsResult,
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)
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async def send_roots_list_changed(self) -> None:
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"""Send a roots/list_changed notification."""
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from mcp.types import RootsListChangedNotification
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await self.send_notification(
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ClientNotification(
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RootsListChangedNotification(
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types.ClientNotification(
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types.RootsListChangedNotification(
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method="notifications/roots/list_changed",
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)
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)
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@@ -9,7 +9,7 @@ from anyio.abc import TaskStatus
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from anyio.streams.memory import MemoryObjectReceiveStream, MemoryObjectSendStream
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from httpx_sse import aconnect_sse
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from mcp.types import JSONRPCMessage
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import mcp.types as types
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logger = logging.getLogger(__name__)
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@@ -31,11 +31,11 @@ async def sse_client(
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`sse_read_timeout` determines how long (in seconds) the client will wait for a new
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event before disconnecting. All other HTTP operations are controlled by `timeout`.
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"""
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read_stream: MemoryObjectReceiveStream[JSONRPCMessage | Exception]
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read_stream_writer: MemoryObjectSendStream[JSONRPCMessage | Exception]
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read_stream: MemoryObjectReceiveStream[types.JSONRPCMessage | Exception]
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read_stream_writer: MemoryObjectSendStream[types.JSONRPCMessage | Exception]
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write_stream: MemoryObjectSendStream[JSONRPCMessage]
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write_stream_reader: MemoryObjectReceiveStream[JSONRPCMessage]
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write_stream: MemoryObjectSendStream[types.JSONRPCMessage]
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write_stream_reader: MemoryObjectReceiveStream[types.JSONRPCMessage]
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read_stream_writer, read_stream = anyio.create_memory_object_stream(0)
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write_stream, write_stream_reader = anyio.create_memory_object_stream(0)
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@@ -85,7 +85,7 @@ async def sse_client(
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case "message":
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try:
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message = (
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JSONRPCMessage.model_validate_json(
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types.JSONRPCMessage.model_validate_json(
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sse.data
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)
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)
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@@ -8,7 +8,7 @@ from anyio.streams.memory import MemoryObjectReceiveStream, MemoryObjectSendStre
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from anyio.streams.text import TextReceiveStream
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from pydantic import BaseModel, Field
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from mcp.types import JSONRPCMessage
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import mcp.types as types
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# Environment variables to inherit by default
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DEFAULT_INHERITED_ENV_VARS = (
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@@ -72,11 +72,11 @@ async def stdio_client(server: StdioServerParameters):
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Client transport for stdio: this will connect to a server by spawning a
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process and communicating with it over stdin/stdout.
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"""
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read_stream: MemoryObjectReceiveStream[JSONRPCMessage | Exception]
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read_stream_writer: MemoryObjectSendStream[JSONRPCMessage | Exception]
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read_stream: MemoryObjectReceiveStream[types.JSONRPCMessage | Exception]
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read_stream_writer: MemoryObjectSendStream[types.JSONRPCMessage | Exception]
|
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write_stream: MemoryObjectSendStream[JSONRPCMessage]
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write_stream_reader: MemoryObjectReceiveStream[JSONRPCMessage]
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write_stream: MemoryObjectSendStream[types.JSONRPCMessage]
|
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write_stream_reader: MemoryObjectReceiveStream[types.JSONRPCMessage]
|
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read_stream_writer, read_stream = anyio.create_memory_object_stream(0)
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write_stream, write_stream_reader = anyio.create_memory_object_stream(0)
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@@ -99,7 +99,7 @@ async def stdio_client(server: StdioServerParameters):
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for line in lines:
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try:
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message = JSONRPCMessage.model_validate_json(line)
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message = types.JSONRPCMessage.model_validate_json(line)
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except Exception as exc:
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await read_stream_writer.send(exc)
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continue
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@@ -12,48 +12,7 @@ from mcp.server.session import ServerSession
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from mcp.server.stdio import stdio_server as stdio_server
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from mcp.shared.context import RequestContext
|
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from mcp.shared.session import RequestResponder
|
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from mcp.types import (
|
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METHOD_NOT_FOUND,
|
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CallToolRequest,
|
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GetPromptResult,
|
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GetPromptRequest,
|
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GetPromptResult,
|
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ImageContent,
|
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ClientNotification,
|
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ClientRequest,
|
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CompleteRequest,
|
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EmbeddedResource,
|
||||
EmptyResult,
|
||||
ErrorData,
|
||||
JSONRPCMessage,
|
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ListPromptsRequest,
|
||||
ListPromptsResult,
|
||||
ListResourcesRequest,
|
||||
ListResourcesResult,
|
||||
ListToolsRequest,
|
||||
ListToolsResult,
|
||||
LoggingCapability,
|
||||
LoggingLevel,
|
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PingRequest,
|
||||
ProgressNotification,
|
||||
Prompt,
|
||||
PromptMessage,
|
||||
PromptReference,
|
||||
PromptsCapability,
|
||||
ReadResourceRequest,
|
||||
ReadResourceResult,
|
||||
Resource,
|
||||
ResourceReference,
|
||||
ResourcesCapability,
|
||||
ServerCapabilities,
|
||||
ServerResult,
|
||||
SetLevelRequest,
|
||||
SubscribeRequest,
|
||||
TextContent,
|
||||
Tool,
|
||||
ToolsCapability,
|
||||
UnsubscribeRequest,
|
||||
)
|
||||
import mcp.types as types
|
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|
||||
logger = logging.getLogger(__name__)
|
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|
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@@ -77,8 +36,8 @@ class NotificationOptions:
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class Server:
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def __init__(self, name: str):
|
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self.name = name
|
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self.request_handlers: dict[type, Callable[..., Awaitable[ServerResult]]] = {
|
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PingRequest: _ping_handler,
|
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self.request_handlers: dict[type, Callable[..., Awaitable[types.ServerResult]]] = {
|
||||
types.PingRequest: _ping_handler,
|
||||
}
|
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self.notification_handlers: dict[type, Callable[..., Awaitable[None]]] = {}
|
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self.notification_options = NotificationOptions()
|
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@@ -116,7 +75,7 @@ class Server:
|
||||
self,
|
||||
notification_options: NotificationOptions,
|
||||
experimental_capabilities: dict[str, dict[str, Any]],
|
||||
) -> ServerCapabilities:
|
||||
) -> types.ServerCapabilities:
|
||||
"""Convert existing handlers to a ServerCapabilities object."""
|
||||
prompts_capability = None
|
||||
resources_capability = None
|
||||
@@ -124,28 +83,28 @@ class Server:
|
||||
logging_capability = None
|
||||
|
||||
# Set prompt capabilities if handler exists
|
||||
if ListPromptsRequest in self.request_handlers:
|
||||
prompts_capability = PromptsCapability(
|
||||
if types.ListPromptsRequest in self.request_handlers:
|
||||
prompts_capability = types.PromptsCapability(
|
||||
listChanged=notification_options.prompts_changed
|
||||
)
|
||||
|
||||
# Set resource capabilities if handler exists
|
||||
if ListResourcesRequest in self.request_handlers:
|
||||
resources_capability = ResourcesCapability(
|
||||
if types.ListResourcesRequest in self.request_handlers:
|
||||
resources_capability = types.ResourcesCapability(
|
||||
subscribe=False, listChanged=notification_options.resources_changed
|
||||
)
|
||||
|
||||
# Set tool capabilities if handler exists
|
||||
if ListToolsRequest in self.request_handlers:
|
||||
tools_capability = ToolsCapability(
|
||||
if types.ListToolsRequest in self.request_handlers:
|
||||
tools_capability = types.ToolsCapability(
|
||||
listChanged=notification_options.tools_changed
|
||||
)
|
||||
|
||||
# Set logging capabilities if handler exists
|
||||
if SetLevelRequest in self.request_handlers:
|
||||
logging_capability = LoggingCapability()
|
||||
if types.SetLevelRequest in self.request_handlers:
|
||||
logging_capability = types.LoggingCapability()
|
||||
|
||||
return ServerCapabilities(
|
||||
return types.ServerCapabilities(
|
||||
prompts=prompts_capability,
|
||||
resources=resources_capability,
|
||||
tools=tools_capability,
|
||||
@@ -159,14 +118,14 @@ class Server:
|
||||
return request_ctx.get()
|
||||
|
||||
def list_prompts(self):
|
||||
def decorator(func: Callable[[], Awaitable[list[Prompt]]]):
|
||||
def decorator(func: Callable[[], Awaitable[list[types.Prompt]]]):
|
||||
logger.debug("Registering handler for PromptListRequest")
|
||||
|
||||
async def handler(_: Any):
|
||||
prompts = await func()
|
||||
return ServerResult(ListPromptsResult(prompts=prompts))
|
||||
return types.ServerResult(types.ListPromptsResult(prompts=prompts))
|
||||
|
||||
self.request_handlers[ListPromptsRequest] = handler
|
||||
self.request_handlers[types.ListPromptsRequest] = handler
|
||||
return func
|
||||
|
||||
return decorator
|
||||
@@ -174,47 +133,42 @@ class Server:
|
||||
def get_prompt(self):
|
||||
def decorator(
|
||||
func: Callable[
|
||||
[str, dict[str, str] | None], Awaitable[GetPromptResult]
|
||||
[str, dict[str, str] | None], Awaitable[types.GetPromptResult]
|
||||
],
|
||||
):
|
||||
logger.debug("Registering handler for GetPromptRequest")
|
||||
|
||||
async def handler(req: GetPromptRequest):
|
||||
async def handler(req: types.GetPromptRequest):
|
||||
prompt_get = await func(req.params.name, req.params.arguments)
|
||||
return ServerResult(prompt_get)
|
||||
return types.ServerResult(prompt_get)
|
||||
|
||||
self.request_handlers[GetPromptRequest] = handler
|
||||
self.request_handlers[types.GetPromptRequest] = handler
|
||||
return func
|
||||
|
||||
return decorator
|
||||
|
||||
def list_resources(self):
|
||||
def decorator(func: Callable[[], Awaitable[list[Resource]]]):
|
||||
def decorator(func: Callable[[], Awaitable[list[types.Resource]]]):
|
||||
logger.debug("Registering handler for ListResourcesRequest")
|
||||
|
||||
async def handler(_: Any):
|
||||
resources = await func()
|
||||
return ServerResult(ListResourcesResult(resources=resources))
|
||||
return types.ServerResult(types.ListResourcesResult(resources=resources))
|
||||
|
||||
self.request_handlers[ListResourcesRequest] = handler
|
||||
self.request_handlers[types.ListResourcesRequest] = handler
|
||||
return func
|
||||
|
||||
return decorator
|
||||
|
||||
def read_resource(self):
|
||||
from mcp.types import (
|
||||
BlobResourceContents,
|
||||
TextResourceContents,
|
||||
)
|
||||
|
||||
def decorator(func: Callable[[AnyUrl], Awaitable[str | bytes]]):
|
||||
logger.debug("Registering handler for ReadResourceRequest")
|
||||
|
||||
async def handler(req: ReadResourceRequest):
|
||||
async def handler(req: types.ReadResourceRequest):
|
||||
result = await func(req.params.uri)
|
||||
match result:
|
||||
case str(s):
|
||||
content = TextResourceContents(
|
||||
content = types.TextResourceContents(
|
||||
uri=req.params.uri,
|
||||
text=s,
|
||||
mimeType="text/plain",
|
||||
@@ -222,130 +176,117 @@ class Server:
|
||||
case bytes(b):
|
||||
import base64
|
||||
|
||||
content = BlobResourceContents(
|
||||
content = types.BlobResourceContents(
|
||||
uri=req.params.uri,
|
||||
blob=base64.urlsafe_b64encode(b).decode(),
|
||||
mimeType="application/octet-stream",
|
||||
)
|
||||
|
||||
return ServerResult(
|
||||
ReadResourceResult(
|
||||
return types.ServerResult(
|
||||
types.ReadResourceResult(
|
||||
contents=[content],
|
||||
)
|
||||
)
|
||||
|
||||
self.request_handlers[ReadResourceRequest] = handler
|
||||
self.request_handlers[types.ReadResourceRequest] = handler
|
||||
return func
|
||||
|
||||
return decorator
|
||||
|
||||
def set_logging_level(self):
|
||||
from mcp.types import EmptyResult
|
||||
|
||||
def decorator(func: Callable[[LoggingLevel], Awaitable[None]]):
|
||||
def decorator(func: Callable[[types.LoggingLevel], Awaitable[None]]):
|
||||
logger.debug("Registering handler for SetLevelRequest")
|
||||
|
||||
async def handler(req: SetLevelRequest):
|
||||
async def handler(req: types.SetLevelRequest):
|
||||
await func(req.params.level)
|
||||
return ServerResult(EmptyResult())
|
||||
return types.ServerResult(types.EmptyResult())
|
||||
|
||||
self.request_handlers[SetLevelRequest] = handler
|
||||
self.request_handlers[types.SetLevelRequest] = handler
|
||||
return func
|
||||
|
||||
return decorator
|
||||
|
||||
def subscribe_resource(self):
|
||||
from mcp.types import EmptyResult
|
||||
|
||||
def decorator(func: Callable[[AnyUrl], Awaitable[None]]):
|
||||
logger.debug("Registering handler for SubscribeRequest")
|
||||
|
||||
async def handler(req: SubscribeRequest):
|
||||
async def handler(req: types.SubscribeRequest):
|
||||
await func(req.params.uri)
|
||||
return ServerResult(EmptyResult())
|
||||
return types.ServerResult(types.EmptyResult())
|
||||
|
||||
self.request_handlers[SubscribeRequest] = handler
|
||||
self.request_handlers[types.SubscribeRequest] = handler
|
||||
return func
|
||||
|
||||
return decorator
|
||||
|
||||
def unsubscribe_resource(self):
|
||||
from mcp.types import EmptyResult
|
||||
|
||||
def decorator(func: Callable[[AnyUrl], Awaitable[None]]):
|
||||
logger.debug("Registering handler for UnsubscribeRequest")
|
||||
|
||||
async def handler(req: UnsubscribeRequest):
|
||||
async def handler(req: types.UnsubscribeRequest):
|
||||
await func(req.params.uri)
|
||||
return ServerResult(EmptyResult())
|
||||
return types.ServerResult(types.EmptyResult())
|
||||
|
||||
self.request_handlers[UnsubscribeRequest] = handler
|
||||
self.request_handlers[types.UnsubscribeRequest] = handler
|
||||
return func
|
||||
|
||||
return decorator
|
||||
|
||||
def list_tools(self):
|
||||
def decorator(func: Callable[[], Awaitable[list[Tool]]]):
|
||||
def decorator(func: Callable[[], Awaitable[list[types.Tool]]]):
|
||||
logger.debug("Registering handler for ListToolsRequest")
|
||||
|
||||
async def handler(_: Any):
|
||||
tools = await func()
|
||||
return ServerResult(ListToolsResult(tools=tools))
|
||||
return types.ServerResult(types.ListToolsResult(tools=tools))
|
||||
|
||||
self.request_handlers[ListToolsRequest] = handler
|
||||
self.request_handlers[types.ListToolsRequest] = handler
|
||||
return func
|
||||
|
||||
return decorator
|
||||
|
||||
def call_tool(self):
|
||||
from mcp.types import (
|
||||
CallToolResult,
|
||||
EmbeddedResource,
|
||||
ImageContent,
|
||||
TextContent,
|
||||
)
|
||||
|
||||
def decorator(
|
||||
func: Callable[
|
||||
...,
|
||||
Awaitable[Sequence[TextContent | ImageContent | EmbeddedResource]],
|
||||
Awaitable[Sequence[types.TextContent | types.ImageContent | types.EmbeddedResource]],
|
||||
],
|
||||
):
|
||||
logger.debug("Registering handler for CallToolRequest")
|
||||
|
||||
async def handler(req: CallToolRequest):
|
||||
async def handler(req: types.CallToolRequest):
|
||||
try:
|
||||
results = await func(req.params.name, (req.params.arguments or {}))
|
||||
content = []
|
||||
for result in results:
|
||||
match result:
|
||||
case str() as text:
|
||||
content.append(TextContent(type="text", text=text))
|
||||
case ImageContent() as img:
|
||||
content.append(types.TextContent(type="text", text=text))
|
||||
case types.ImageContent() as img:
|
||||
content.append(
|
||||
ImageContent(
|
||||
types.ImageContent(
|
||||
type="image",
|
||||
data=img.data,
|
||||
mimeType=img.mimeType,
|
||||
)
|
||||
)
|
||||
case EmbeddedResource() as resource:
|
||||
case types.EmbeddedResource() as resource:
|
||||
content.append(
|
||||
EmbeddedResource(
|
||||
types.EmbeddedResource(
|
||||
type="resource", resource=resource.resource
|
||||
)
|
||||
)
|
||||
|
||||
return ServerResult(CallToolResult(content=content, isError=False))
|
||||
return types.ServerResult(types.CallToolResult(content=content, isError=False))
|
||||
except Exception as e:
|
||||
return ServerResult(
|
||||
CallToolResult(
|
||||
content=[TextContent(type="text", text=str(e))],
|
||||
return types.ServerResult(
|
||||
types.CallToolResult(
|
||||
content=[types.TextContent(type="text", text=str(e))],
|
||||
isError=True,
|
||||
)
|
||||
)
|
||||
|
||||
self.request_handlers[CallToolRequest] = handler
|
||||
self.request_handlers[types.CallToolRequest] = handler
|
||||
return func
|
||||
|
||||
return decorator
|
||||
@@ -356,47 +297,46 @@ class Server:
|
||||
):
|
||||
logger.debug("Registering handler for ProgressNotification")
|
||||
|
||||
async def handler(req: ProgressNotification):
|
||||
async def handler(req: types.ProgressNotification):
|
||||
await func(
|
||||
req.params.progressToken, req.params.progress, req.params.total
|
||||
)
|
||||
|
||||
self.notification_handlers[ProgressNotification] = handler
|
||||
self.notification_handlers[types.ProgressNotification] = handler
|
||||
return func
|
||||
|
||||
return decorator
|
||||
|
||||
def completion(self):
|
||||
"""Provides completions for prompts and resource templates"""
|
||||
from mcp.types import CompleteResult, Completion, CompletionArgument
|
||||
|
||||
def decorator(
|
||||
func: Callable[
|
||||
[PromptReference | ResourceReference, CompletionArgument],
|
||||
Awaitable[Completion | None],
|
||||
[types.PromptReference | types.ResourceReference, types.CompletionArgument],
|
||||
Awaitable[types.Completion | None],
|
||||
],
|
||||
):
|
||||
logger.debug("Registering handler for CompleteRequest")
|
||||
|
||||
async def handler(req: CompleteRequest):
|
||||
async def handler(req: types.CompleteRequest):
|
||||
completion = await func(req.params.ref, req.params.argument)
|
||||
return ServerResult(
|
||||
CompleteResult(
|
||||
return types.ServerResult(
|
||||
types.CompleteResult(
|
||||
completion=completion
|
||||
if completion is not None
|
||||
else Completion(values=[], total=None, hasMore=None),
|
||||
else types.Completion(values=[], total=None, hasMore=None),
|
||||
)
|
||||
)
|
||||
|
||||
self.request_handlers[CompleteRequest] = handler
|
||||
self.request_handlers[types.CompleteRequest] = handler
|
||||
return func
|
||||
|
||||
return decorator
|
||||
|
||||
async def run(
|
||||
self,
|
||||
read_stream: MemoryObjectReceiveStream[JSONRPCMessage | Exception],
|
||||
write_stream: MemoryObjectSendStream[JSONRPCMessage],
|
||||
read_stream: MemoryObjectReceiveStream[types.JSONRPCMessage | Exception],
|
||||
write_stream: MemoryObjectSendStream[types.JSONRPCMessage],
|
||||
initialization_options: InitializationOptions,
|
||||
# When True, exceptions are returned as messages to the client.
|
||||
# When False, exceptions are raised, which will cause the server to shut down
|
||||
@@ -412,7 +352,7 @@ class Server:
|
||||
logger.debug(f"Received message: {message}")
|
||||
|
||||
match message:
|
||||
case RequestResponder(request=ClientRequest(root=req)):
|
||||
case RequestResponder(request=types.ClientRequest(root=req)):
|
||||
logger.info(
|
||||
f"Processing request of type {type(req).__name__}"
|
||||
)
|
||||
@@ -437,7 +377,7 @@ class Server:
|
||||
except Exception as err:
|
||||
if raise_exceptions:
|
||||
raise err
|
||||
response = ErrorData(
|
||||
response = types.ErrorData(
|
||||
code=0, message=str(err), data=None
|
||||
)
|
||||
finally:
|
||||
@@ -448,14 +388,14 @@ class Server:
|
||||
await message.respond(response)
|
||||
else:
|
||||
await message.respond(
|
||||
ErrorData(
|
||||
code=METHOD_NOT_FOUND,
|
||||
types.ErrorData(
|
||||
code=types.METHOD_NOT_FOUND,
|
||||
message="Method not found",
|
||||
)
|
||||
)
|
||||
|
||||
logger.debug("Response sent")
|
||||
case ClientNotification(root=notify):
|
||||
case types.ClientNotification(root=notify):
|
||||
if type(notify) in self.notification_handlers:
|
||||
assert type(notify) in self.notification_handlers
|
||||
|
||||
@@ -479,5 +419,5 @@ class Server:
|
||||
)
|
||||
|
||||
|
||||
async def _ping_handler(request: PingRequest) -> ServerResult:
|
||||
return ServerResult(EmptyResult())
|
||||
async def _ping_handler(request: types.PingRequest) -> types.ServerResult:
|
||||
return types.ServerResult(types.EmptyResult())
|
||||
|
||||
@@ -11,29 +11,7 @@ from mcp.shared.session import (
|
||||
BaseSession,
|
||||
RequestResponder,
|
||||
)
|
||||
from mcp.types import (
|
||||
LATEST_PROTOCOL_VERSION,
|
||||
ClientNotification,
|
||||
ClientRequest,
|
||||
CreateMessageResult,
|
||||
EmptyResult,
|
||||
Implementation,
|
||||
IncludeContext,
|
||||
InitializedNotification,
|
||||
InitializeRequest,
|
||||
InitializeResult,
|
||||
JSONRPCMessage,
|
||||
ListRootsResult,
|
||||
LoggingLevel,
|
||||
ModelPreferences,
|
||||
PromptListChangedNotification,
|
||||
ResourceListChangedNotification,
|
||||
SamplingMessage,
|
||||
ServerNotification,
|
||||
ServerRequest,
|
||||
ServerResult,
|
||||
ToolListChangedNotification,
|
||||
)
|
||||
import mcp.types as types
|
||||
|
||||
|
||||
class InitializationState(Enum):
|
||||
@@ -44,37 +22,37 @@ class InitializationState(Enum):
|
||||
|
||||
class ServerSession(
|
||||
BaseSession[
|
||||
ServerRequest,
|
||||
ServerNotification,
|
||||
ServerResult,
|
||||
ClientRequest,
|
||||
ClientNotification,
|
||||
types.ServerRequest,
|
||||
types.ServerNotification,
|
||||
types.ServerResult,
|
||||
types.ClientRequest,
|
||||
types.ClientNotification,
|
||||
]
|
||||
):
|
||||
_initialized: InitializationState = InitializationState.NotInitialized
|
||||
|
||||
def __init__(
|
||||
self,
|
||||
read_stream: MemoryObjectReceiveStream[JSONRPCMessage | Exception],
|
||||
write_stream: MemoryObjectSendStream[JSONRPCMessage],
|
||||
read_stream: MemoryObjectReceiveStream[types.JSONRPCMessage | Exception],
|
||||
write_stream: MemoryObjectSendStream[types.JSONRPCMessage],
|
||||
init_options: InitializationOptions,
|
||||
) -> None:
|
||||
super().__init__(read_stream, write_stream, ClientRequest, ClientNotification)
|
||||
super().__init__(read_stream, write_stream, types.ClientRequest, types.ClientNotification)
|
||||
self._initialization_state = InitializationState.NotInitialized
|
||||
self._init_options = init_options
|
||||
|
||||
async def _received_request(
|
||||
self, responder: RequestResponder[ClientRequest, ServerResult]
|
||||
self, responder: RequestResponder[types.ClientRequest, types.ServerResult]
|
||||
):
|
||||
match responder.request.root:
|
||||
case InitializeRequest():
|
||||
case types.InitializeRequest():
|
||||
self._initialization_state = InitializationState.Initializing
|
||||
await responder.respond(
|
||||
ServerResult(
|
||||
InitializeResult(
|
||||
protocolVersion=LATEST_PROTOCOL_VERSION,
|
||||
types.ServerResult(
|
||||
types.InitializeResult(
|
||||
protocolVersion=types.LATEST_PROTOCOL_VERSION,
|
||||
capabilities=self._init_options.capabilities,
|
||||
serverInfo=Implementation(
|
||||
serverInfo=types.Implementation(
|
||||
name=self._init_options.server_name,
|
||||
version=self._init_options.server_version,
|
||||
),
|
||||
@@ -87,11 +65,11 @@ class ServerSession(
|
||||
"Received request before initialization was complete"
|
||||
)
|
||||
|
||||
async def _received_notification(self, notification: ClientNotification) -> None:
|
||||
async def _received_notification(self, notification: types.ClientNotification) -> None:
|
||||
# Need this to avoid ASYNC910
|
||||
await anyio.lowlevel.checkpoint()
|
||||
match notification.root:
|
||||
case InitializedNotification():
|
||||
case types.InitializedNotification():
|
||||
self._initialization_state = InitializationState.Initialized
|
||||
case _:
|
||||
if self._initialization_state != InitializationState.Initialized:
|
||||
@@ -100,19 +78,14 @@ class ServerSession(
|
||||
)
|
||||
|
||||
async def send_log_message(
|
||||
self, level: LoggingLevel, data: Any, logger: str | None = None
|
||||
self, level: types.LoggingLevel, data: Any, logger: str | None = None
|
||||
) -> None:
|
||||
"""Send a log message notification."""
|
||||
from mcp.types import (
|
||||
LoggingMessageNotification,
|
||||
LoggingMessageNotificationParams,
|
||||
)
|
||||
|
||||
await self.send_notification(
|
||||
ServerNotification(
|
||||
LoggingMessageNotification(
|
||||
types.ServerNotification(
|
||||
types.LoggingMessageNotification(
|
||||
method="notifications/message",
|
||||
params=LoggingMessageNotificationParams(
|
||||
params=types.LoggingMessageNotificationParams(
|
||||
level=level,
|
||||
data=data,
|
||||
logger=logger,
|
||||
@@ -123,43 +96,33 @@ class ServerSession(
|
||||
|
||||
async def send_resource_updated(self, uri: AnyUrl) -> None:
|
||||
"""Send a resource updated notification."""
|
||||
from mcp.types import (
|
||||
ResourceUpdatedNotification,
|
||||
ResourceUpdatedNotificationParams,
|
||||
)
|
||||
|
||||
await self.send_notification(
|
||||
ServerNotification(
|
||||
ResourceUpdatedNotification(
|
||||
types.ServerNotification(
|
||||
types.ResourceUpdatedNotification(
|
||||
method="notifications/resources/updated",
|
||||
params=ResourceUpdatedNotificationParams(uri=uri),
|
||||
params=types.ResourceUpdatedNotificationParams(uri=uri),
|
||||
)
|
||||
)
|
||||
)
|
||||
|
||||
async def create_message(
|
||||
self,
|
||||
messages: list[SamplingMessage],
|
||||
messages: list[types.SamplingMessage],
|
||||
*,
|
||||
max_tokens: int,
|
||||
system_prompt: str | None = None,
|
||||
include_context: IncludeContext | None = None,
|
||||
include_context: types.IncludeContext | None = None,
|
||||
temperature: float | None = None,
|
||||
stop_sequences: list[str] | None = None,
|
||||
metadata: dict[str, Any] | None = None,
|
||||
model_preferences: ModelPreferences | None = None,
|
||||
) -> CreateMessageResult:
|
||||
model_preferences: types.ModelPreferences | None = None,
|
||||
) -> types.CreateMessageResult:
|
||||
"""Send a sampling/create_message request."""
|
||||
from mcp.types import (
|
||||
CreateMessageRequest,
|
||||
CreateMessageRequestParams,
|
||||
)
|
||||
|
||||
return await self.send_request(
|
||||
ServerRequest(
|
||||
CreateMessageRequest(
|
||||
types.ServerRequest(
|
||||
types.CreateMessageRequest(
|
||||
method="sampling/createMessage",
|
||||
params=CreateMessageRequestParams(
|
||||
params=types.CreateMessageRequestParams(
|
||||
messages=messages,
|
||||
systemPrompt=system_prompt,
|
||||
includeContext=include_context,
|
||||
@@ -171,46 +134,40 @@ class ServerSession(
|
||||
),
|
||||
)
|
||||
),
|
||||
CreateMessageResult,
|
||||
types.CreateMessageResult,
|
||||
)
|
||||
|
||||
async def list_roots(self) -> ListRootsResult:
|
||||
async def list_roots(self) -> types.ListRootsResult:
|
||||
"""Send a roots/list request."""
|
||||
from mcp.types import ListRootsRequest
|
||||
|
||||
return await self.send_request(
|
||||
ServerRequest(
|
||||
ListRootsRequest(
|
||||
types.ServerRequest(
|
||||
types.ListRootsRequest(
|
||||
method="roots/list",
|
||||
)
|
||||
),
|
||||
ListRootsResult,
|
||||
types.ListRootsResult,
|
||||
)
|
||||
|
||||
async def send_ping(self) -> EmptyResult:
|
||||
async def send_ping(self) -> types.EmptyResult:
|
||||
"""Send a ping request."""
|
||||
from mcp.types import PingRequest
|
||||
|
||||
return await self.send_request(
|
||||
ServerRequest(
|
||||
PingRequest(
|
||||
types.ServerRequest(
|
||||
types.PingRequest(
|
||||
method="ping",
|
||||
)
|
||||
),
|
||||
EmptyResult,
|
||||
types.EmptyResult,
|
||||
)
|
||||
|
||||
async def send_progress_notification(
|
||||
self, progress_token: str | int, progress: float, total: float | None = None
|
||||
) -> None:
|
||||
"""Send a progress notification."""
|
||||
from mcp.types import ProgressNotification, ProgressNotificationParams
|
||||
|
||||
await self.send_notification(
|
||||
ServerNotification(
|
||||
ProgressNotification(
|
||||
types.ServerNotification(
|
||||
types.ProgressNotification(
|
||||
method="notifications/progress",
|
||||
params=ProgressNotificationParams(
|
||||
params=types.ProgressNotificationParams(
|
||||
progressToken=progress_token,
|
||||
progress=progress,
|
||||
total=total,
|
||||
@@ -222,8 +179,8 @@ class ServerSession(
|
||||
async def send_resource_list_changed(self) -> None:
|
||||
"""Send a resource list changed notification."""
|
||||
await self.send_notification(
|
||||
ServerNotification(
|
||||
ResourceListChangedNotification(
|
||||
types.ServerNotification(
|
||||
types.ResourceListChangedNotification(
|
||||
method="notifications/resources/list_changed",
|
||||
)
|
||||
)
|
||||
@@ -232,8 +189,8 @@ class ServerSession(
|
||||
async def send_tool_list_changed(self) -> None:
|
||||
"""Send a tool list changed notification."""
|
||||
await self.send_notification(
|
||||
ServerNotification(
|
||||
ToolListChangedNotification(
|
||||
types.ServerNotification(
|
||||
types.ToolListChangedNotification(
|
||||
method="notifications/tools/list_changed",
|
||||
)
|
||||
)
|
||||
@@ -242,8 +199,8 @@ class ServerSession(
|
||||
async def send_prompt_list_changed(self) -> None:
|
||||
"""Send a prompt list changed notification."""
|
||||
await self.send_notification(
|
||||
ServerNotification(
|
||||
PromptListChangedNotification(
|
||||
types.ServerNotification(
|
||||
types.PromptListChangedNotification(
|
||||
method="notifications/prompts/list_changed",
|
||||
)
|
||||
)
|
||||
|
||||
@@ -12,7 +12,7 @@ from starlette.requests import Request
|
||||
from starlette.responses import Response
|
||||
from starlette.types import Receive, Scope, Send
|
||||
|
||||
from mcp.types import JSONRPCMessage
|
||||
import mcp.types as types
|
||||
|
||||
logger = logging.getLogger(__name__)
|
||||
|
||||
@@ -30,7 +30,7 @@ class SseServerTransport:
|
||||
"""
|
||||
|
||||
_endpoint: str
|
||||
_read_stream_writers: dict[UUID, MemoryObjectSendStream[JSONRPCMessage | Exception]]
|
||||
_read_stream_writers: dict[UUID, MemoryObjectSendStream[types.JSONRPCMessage | Exception]]
|
||||
|
||||
def __init__(self, endpoint: str) -> None:
|
||||
"""
|
||||
@@ -50,11 +50,11 @@ class SseServerTransport:
|
||||
raise ValueError("connect_sse can only handle HTTP requests")
|
||||
|
||||
logger.debug("Setting up SSE connection")
|
||||
read_stream: MemoryObjectReceiveStream[JSONRPCMessage | Exception]
|
||||
read_stream_writer: MemoryObjectSendStream[JSONRPCMessage | Exception]
|
||||
read_stream: MemoryObjectReceiveStream[types.JSONRPCMessage | Exception]
|
||||
read_stream_writer: MemoryObjectSendStream[types.JSONRPCMessage | Exception]
|
||||
|
||||
write_stream: MemoryObjectSendStream[JSONRPCMessage]
|
||||
write_stream_reader: MemoryObjectReceiveStream[JSONRPCMessage]
|
||||
write_stream: MemoryObjectSendStream[types.JSONRPCMessage]
|
||||
write_stream_reader: MemoryObjectReceiveStream[types.JSONRPCMessage]
|
||||
|
||||
read_stream_writer, read_stream = anyio.create_memory_object_stream(0)
|
||||
write_stream, write_stream_reader = anyio.create_memory_object_stream(0)
|
||||
@@ -125,7 +125,7 @@ class SseServerTransport:
|
||||
logger.debug(f"Received JSON: {json}")
|
||||
|
||||
try:
|
||||
message = JSONRPCMessage.model_validate(json)
|
||||
message = types.JSONRPCMessage.model_validate(json)
|
||||
logger.debug(f"Validated client message: {message}")
|
||||
except ValidationError as err:
|
||||
logger.error(f"Failed to parse message: {err}")
|
||||
|
||||
@@ -5,7 +5,7 @@ import anyio
|
||||
import anyio.lowlevel
|
||||
from anyio.streams.memory import MemoryObjectReceiveStream, MemoryObjectSendStream
|
||||
|
||||
from mcp.types import JSONRPCMessage
|
||||
import mcp.types as types
|
||||
|
||||
|
||||
@asynccontextmanager
|
||||
@@ -24,11 +24,11 @@ async def stdio_server(
|
||||
if not stdout:
|
||||
stdout = anyio.wrap_file(sys.stdout)
|
||||
|
||||
read_stream: MemoryObjectReceiveStream[JSONRPCMessage | Exception]
|
||||
read_stream_writer: MemoryObjectSendStream[JSONRPCMessage | Exception]
|
||||
read_stream: MemoryObjectReceiveStream[types.JSONRPCMessage | Exception]
|
||||
read_stream_writer: MemoryObjectSendStream[types.JSONRPCMessage | Exception]
|
||||
|
||||
write_stream: MemoryObjectSendStream[JSONRPCMessage]
|
||||
write_stream_reader: MemoryObjectReceiveStream[JSONRPCMessage]
|
||||
write_stream: MemoryObjectSendStream[types.JSONRPCMessage]
|
||||
write_stream_reader: MemoryObjectReceiveStream[types.JSONRPCMessage]
|
||||
|
||||
read_stream_writer, read_stream = anyio.create_memory_object_stream(0)
|
||||
write_stream, write_stream_reader = anyio.create_memory_object_stream(0)
|
||||
@@ -38,7 +38,7 @@ async def stdio_server(
|
||||
async with read_stream_writer:
|
||||
async for line in stdin:
|
||||
try:
|
||||
message = JSONRPCMessage.model_validate_json(line)
|
||||
message = types.JSONRPCMessage.model_validate_json(line)
|
||||
except Exception as exc:
|
||||
await read_stream_writer.send(exc)
|
||||
continue
|
||||
|
||||
@@ -6,7 +6,7 @@ from anyio.streams.memory import MemoryObjectReceiveStream, MemoryObjectSendStre
|
||||
from starlette.types import Receive, Scope, Send
|
||||
from starlette.websockets import WebSocket
|
||||
|
||||
from mcp.types import JSONRPCMessage
|
||||
import mcp.types as types
|
||||
|
||||
logger = logging.getLogger(__name__)
|
||||
|
||||
@@ -21,11 +21,11 @@ async def websocket_server(scope: Scope, receive: Receive, send: Send):
|
||||
websocket = WebSocket(scope, receive, send)
|
||||
await websocket.accept(subprotocol="mcp")
|
||||
|
||||
read_stream: MemoryObjectReceiveStream[JSONRPCMessage | Exception]
|
||||
read_stream_writer: MemoryObjectSendStream[JSONRPCMessage | Exception]
|
||||
read_stream: MemoryObjectReceiveStream[types.JSONRPCMessage | Exception]
|
||||
read_stream_writer: MemoryObjectSendStream[types.JSONRPCMessage | Exception]
|
||||
|
||||
write_stream: MemoryObjectSendStream[JSONRPCMessage]
|
||||
write_stream_reader: MemoryObjectReceiveStream[JSONRPCMessage]
|
||||
write_stream: MemoryObjectSendStream[types.JSONRPCMessage]
|
||||
write_stream_reader: MemoryObjectReceiveStream[types.JSONRPCMessage]
|
||||
|
||||
read_stream_writer, read_stream = anyio.create_memory_object_stream(0)
|
||||
write_stream, write_stream_reader = anyio.create_memory_object_stream(0)
|
||||
@@ -35,7 +35,7 @@ async def websocket_server(scope: Scope, receive: Receive, send: Send):
|
||||
async with read_stream_writer:
|
||||
async for message in websocket.iter_json():
|
||||
try:
|
||||
client_message = JSONRPCMessage.model_validate(message)
|
||||
client_message = types.JSONRPCMessage.model_validate(message)
|
||||
except Exception as exc:
|
||||
await read_stream_writer.send(exc)
|
||||
continue
|
||||
|
||||
Reference in New Issue
Block a user