import express from 'express';
import { McpServer } from '@modelcontextprotocol/sdk/server/mcp.js';
import { z } from 'zod';
import { statelessHandler } from '../src/index.js';
// Create Express app
const app = express();
app.use(express.json());
// Configure server factory function
const createServer = () => {
const server = new McpServer({
name: 'stateless-example-server',
version: '1.0.0',
});
// Add a simple echo tool
server.tool(
'echo',
{ message: z.string() },
async ({ message }) => ({ content: [{ type: 'text', text: `Echo: ${message}` }] })
);
return server;
};
// Configure the stateless handler
const handler = statelessHandler(createServer, {
onClose: (req: any, res: any) => {
console.log('Request completed and transport closed');
},
onError: (error: any) => {
console.error('Error handling request:', error);
}
});
// Mount the handler (stateless only needs POST)
app.post('/mcp', handler);
// Start the server
const PORT = process.env.PORT || 3001;
app.listen(PORT, () => {
console.log(`Stateless MCP server running on port ${PORT}`);
});
