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refactor(examples): migrate all HTTP examples to streamable_http_app() (#2291)

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Max Isbey 2026-03-16 11:37:01 +00:00 • committed by GitHub
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2 changed files with 43 additions and 271 deletions
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6
examples/servers/simple-resource/README.md
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@ -4,14 +4,14 @@ A simple MCP server that exposes sample text files as resources.
## Usage
Start the server using either stdio (default) or SSE transport:
Start the server using either stdio (default) or Streamable HTTP transport:
```bash
# Using stdio transport (default)
uv run mcp-simple-resource
# Using SSE transport on custom port
uv run mcp-simple-resource --transport sse --port 8000
# Using Streamable HTTP transport on custom port
uv run mcp-simple-resource --transport streamable-http --port 8000
```
The server exposes some basic text file resources that can be read by clients.

29
examples/servers/simple-resource/mcp_simple_resource/server.py
View file

@ -4,7 +4,6 @@ import anyio
import click
from mcp import types
from mcp.server import Server, ServerRequestContext
from starlette.requests import Request
SAMPLE_RESOURCES = {
"greeting": {
@ -62,10 +61,10 @@ async def handle_read_resource(
@click.command()
@click.option("--port", default=8000, help="Port to listen on for SSE")
@click.option("--port", default=8000, help="Port to listen on for HTTP")
@click.option(
"--transport",
type=click.Choice(["stdio", "sse"]),
type=click.Choice(["stdio", "streamable-http"]),
default="stdio",
help="Transport type",
)
@ -76,30 +75,10 @@ def main(port: int, transport: str) -> int:
on_read_resource=handle_read_resource,
)
if transport == "sse":
from mcp.server.sse import SseServerTransport
from starlette.applications import Starlette
from starlette.responses import Response
from starlette.routing import Mount, Route
sse = SseServerTransport("/messages/")
async def handle_sse(request: Request):
async with sse.connect_sse(request.scope, request.receive, request._send) as streams: # type: ignore[reportPrivateUsage]
await app.run(streams[0], streams[1], app.create_initialization_options())
return Response()
starlette_app = Starlette(
debug=True,
routes=[
Route("/sse", endpoint=handle_sse, methods=["GET"]),
Mount("/messages/", app=sse.handle_post_message),
],
)
if transport == "streamable-http":
import uvicorn
uvicorn.run(starlette_app, host="127.0.0.1", port=port)
uvicorn.run(app.streamable_http_app(), host="127.0.0.1", port=port)
else:
from mcp.server.stdio import stdio_server