wehub-resource-sync
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50 lines
1.8 KiB
Python
50 lines
1.8 KiB
Python
"""Sessionful Streamable HTTP (lowlevel `Server`): tool-triggered `list_changed` over the standalone GET stream."""
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import itertools
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from typing import Any
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import mcp_types as types
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from mcp.server.context import ServerRequestContext
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from mcp.server.lowlevel import Server
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from stories._hosting import run_server_from_args
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ADD_NOTE_INPUT_SCHEMA: dict[str, Any] = {
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"type": "object",
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"properties": {"content": {"type": "string"}},
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"required": ["content"],
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}
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def build_server() -> Server[Any]:
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counter = itertools.count(1)
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resources: list[types.Resource] = [types.Resource(uri="note://initial", name="initial", mime_type="text/plain")]
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async def list_tools(
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ctx: ServerRequestContext[Any], params: types.PaginatedRequestParams | None
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) -> types.ListToolsResult:
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return types.ListToolsResult(tools=[types.Tool(name="add_note", input_schema=ADD_NOTE_INPUT_SCHEMA)])
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async def list_resources(
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ctx: ServerRequestContext[Any], params: types.PaginatedRequestParams | None
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) -> types.ListResourcesResult:
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return types.ListResourcesResult(resources=list(resources))
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async def call_tool(ctx: ServerRequestContext[Any], params: types.CallToolRequestParams) -> types.CallToolResult:
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assert params.name == "add_note" and params.arguments is not None
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name = f"note-{next(counter)}"
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resources.append(types.Resource(uri=f"note://{name}", name=name, mime_type="text/plain"))
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await ctx.session.send_resource_list_changed()
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return types.CallToolResult(content=[types.TextContent(text=f"registered {name}")])
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return Server(
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"standalone-get-example",
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on_list_tools=list_tools,
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on_list_resources=list_resources,
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on_call_tool=call_tool,
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)
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if __name__ == "__main__":
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run_server_from_args(build_server)
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