ExpressJS MCP

import express, { type Application, type Request, type Response, type NextFunction, } from "express"; import { registerController } from "../../src/decorators"; import { ItemsController } from "./controllers/items.controller"; // Create Express app export function createApp(): Application { const app = express(); // Middleware app.use(express.json()); app.use(express.urlencoded({ extended: true })); // CORS middleware (optional) app.use((req: Request, res: Response, next: NextFunction) => { res.header("Access-Control-Allow-Origin", "*"); res.header( "Access-Control-Allow-Methods", "GET, POST, PUT, DELETE, OPTIONS", ); res.header("Access-Control-Allow-Headers", "Content-Type, Authorization"); if (req.method === "OPTIONS") { return res.sendStatus(200); } next(); }); // Health check endpoint app.get("/health", (req: Request, res: Response) => { res.json({ status: "healthy", timestamp: new Date().toISOString() }); }); // Register controllers const itemsController = new ItemsController(); registerController(app, itemsController); // Error handling middleware app.use((err: Error, req: Request, res: Response, next: NextFunction) => { console.error("Error:", err); res.status(500).json({ error: "Internal server error", message: err.message, }); }); // 404 handler app.use((req: Request, res: Response) => { res.status(404).json({ error: "Not found", message: `Route ${req.method} ${req.path} not found`, }); }); return app; } // Export a singleton instance export const app = createApp();