Added proper error handling

app.js

@@ -1,13 +1,15 @@
 const express = require('express');
 const bodyParser = require('body-parser');
 const mongoose = require('mongoose');
+const path = require('path');
 
 const feedRoutes = require('./routes/feed');
 
 const app = express();
 
 // app.use(bodyParser.urlencoded()); // x-www-form-urlencoded <form>
 app.use(bodyParser.json()); // application/json
+app.use('/images', express.static(path.join(__dirname, 'images')));
 
 app.use((req, res, next) => {
 	res.setHeader('Access-Control-Allow-Origin', '*');
@@ -20,6 +22,13 @@ app.use((req, res, next) => {
 });
 
 app.use('/feed', feedRoutes);
+app.use((error, req, res, next) => {
+	console.log(error);
+	const status = error.statusCode || 500;
+	const message = error.message;
+
+	res.status(status).json({ message: message });
+});
 
 mongoose
 	.connect(process.env.DB_CONNECTION_STRING)

controllers/feed.js

@@ -19,12 +19,13 @@ exports.getPosts = (req, res, next) => {
 };
 
 exports.createPost = (req, res, next) => {
-	const errors = validationResult(req);
+  const errors = validationResult(req);
 
 	if (!errors.isEmpty()) {
-		return res
-			.status(422)
-			.json({ message: 'Validation Failed!', errors: errors.array() });
+		const error = new Error('Validation Failed!');
+		error.statusCode = 422;
+
+		throw error;
 	}
 	const title = req.body.title;
 	const content = req.body.content;
@@ -38,13 +39,18 @@ exports.createPost = (req, res, next) => {
 		},
 	});
 
-	return post
+  return post
 		.save()
 		.then((post) => {
 			res.status(201).json({
 				message: 'Post created successfully!',
 				post: post,
 			});
 		})
-		.catch((err) => next(new Error(err)));
+		.catch((err) => {
+			if (!err.statusCode) {
+				err.statusCode = 500;
+			}
+			next(err);
+		});
 };