Change error response when mongoose validation fails

src/libs/routes/user.js

@@ -133,8 +133,13 @@ userApp.post('/', (req, res, next) => {
     user.save((err) => {
         if(err) {
             log.error(err);
-            log.error(err.errors);
-            return next(err);
+            let errors = [];
+            for(let errName in err.errors) {
+                errors.push(err.errors[errName].message);
+            }
+            console.log(errors);
+            res.statusCode = 400;
+            return res.json({err, errors});
         }
 
         // Create verification token