39 lines
920 B
Python
39 lines
920 B
Python
"""
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Basic example showing how to mount StreamableHTTP server in Starlette.
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Run from the repository root:
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uvicorn examples.snippets.servers.streamable_http_basic_mounting:app --reload
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"""
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import contextlib
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from starlette.applications import Starlette
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from starlette.routing import Mount
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from mcp.server.fastmcp import FastMCP
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# Create MCP server
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mcp = FastMCP("My App")
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@mcp.tool()
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def hello() -> str:
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"""A simple hello tool"""
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return "Hello from MCP!"
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# Create a lifespan context manager to run the session manager
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@contextlib.asynccontextmanager
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async def lifespan(app: Starlette):
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async with mcp.session_manager.run():
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yield
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# Mount the StreamableHTTP server to the existing ASGI server
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# Transport-specific options are passed to streamable_http_app()
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app = Starlette(
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routes=[
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Mount("/", app=mcp.streamable_http_app(json_response=True)),
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],
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lifespan=lifespan,
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)
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