import * as staticFile from 'connect-static-file'; import { Request, Response } from 'express'; import * as path from 'path'; export default function handle404(serveDir: string) { const handle404Middleware = staticFile(path.join(serveDir, '.404.html')); return function(request: Request, response: Response, next: () => void) { response.statusCode = 404; return handle404Middleware(request, response, next); }; }