Add not found handler

src/app.ts

@@ -5,11 +5,13 @@ import express from 'express';
 import bodyParser from 'body-parser';
 import { errorHandler } from './error';
 import itemsRouter from './routes/items';
+import notFoundHandler from './routes/not-found';
 
 const app = express()
 	.disable('x-powered-by')
 	.use(bodyParser.json())
 	.use('/items', itemsRouter)
+	.use(notFoundHandler)
 	.use(errorHandler);
 
 export default app;

src/routes/not-found.ts

@@ -0,0 +1,8 @@
+import { RequestHandler } from 'express';
+import APIError, { ErrorCode } from '../error';
+
+const notFound: RequestHandler = (req, res, next) => {
+	throw new APIError(ErrorCode.NOT_FOUND, `Route ${req.path} not found.`);
+};
+
+export default notFound;