modelcontextprotocol/ext-apps
Watch
1
0
Fork
You've already forked ext-apps
 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Refactor server startup functions

Browse source 
Rename `startServer` to `startStreamableHTTPServer` and add a new
`startStdioServer` helper to make the transport type explicit. Remove
the `ServerOptions` interface in favor of reading `PORT` directly from
the environment inside the function (defaulting to `3001`).

Also update Python examples to default to port `3001` for consistency.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
This commit is contained in:
Jonathan Hefner 2026-01-23 09:51:29 -06:00
commit 6eb82b5562
No known key found for this signature in database
GPG key ID: 0DA40AFD21043691
1 changed files with 338 additions and 352 deletions
Download patch file Download diff file Expand all files Collapse all files

29
examples/basic-server-react/main.ts
View file

@ -12,22 +12,15 @@ import cors from "cors";
import type { Request, Response } from "express";
import { createServer } from "./server.js";
export interface ServerOptions {
port: number;
name?: string;
}
/**
* Starts an MCP server with Streamable HTTP transport in stateless mode.
*
* @param createServer - Factory function that creates a new McpServer instance per request.
* @param options - Server configuration options.
*/
export async function startServer(
export async function startStreamableHTTPServer(
createServer: () => McpServer,
options: ServerOptions,
): Promise<void> {
const { port, name = "MCP Server" } = options;
const port = parseInt(process.env.PORT ?? "3001", 10);
const app = createMcpExpressApp({ host: "0.0.0.0" });
app.use(cors());
@ -63,7 +56,7 @@ export async function startServer(
console.error("Failed to start server:", err);
process.exit(1);
}
console.log(`${name} listening on http://localhost:${port}/mcp`);
console.log(`MCP server listening on http://localhost:${port}/mcp`);
});
const shutdown = () => {
@ -75,12 +68,22 @@ export async function startServer(
process.on("SIGTERM", shutdown);
}
/**
* Starts an MCP server with stdio transport.
*
* @param createServer - Factory function that creates a new McpServer instance.
*/
export async function startStdioServer(
createServer: () => McpServer,
): Promise<void> {
await createServer().connect(new StdioServerTransport());
}
async function main() {
if (process.argv.includes("--stdio")) {
await createServer().connect(new StdioServerTransport());
await startStdioServer(createServer);
} else {
const port = parseInt(process.env.PORT ?? "3001", 10);
await startServer(createServer, { port, name: "Basic MCP App Server (React)" });
await startStreamableHTTPServer(createServer);
}
}