improves error structure

src/errors/formatResponse.js

@@ -0,0 +1,18 @@
+const formatErrorResponse = (incoming, source) => {
+  switch (source) {
+    case 'mongoose':
+      return {
+        errors: Object.keys(incoming.errors).reduce((acc, key) => {
+          acc.push({
+            message: incoming.errors[key].message,
+          });
+          return acc;
+        }, []),
+      };
+
+    default:
+      return incoming;
+  }
+};
+
+module.exports = formatErrorResponse;

src/errors/formatter.js

@@ -1,14 +0,0 @@
-const errorFormatter = (incoming, source) => {
-  switch (source) {
-    case 'mongoose':
-      return Object.keys(incoming.errors).reduce((acc, key) => {
-        acc.push(incoming.errors[key].message);
-        return acc;
-      }, []);
-
-    default:
-      return incoming;
-  }
-};
-
-module.exports = errorFormatter;

src/mongoose/requestHandlers/create.js

@@ -1,11 +1,11 @@
 const httpStatus = require('http-status');
-const errorFormatter = require('../../errors/formatter');
+const formatErrorResponse = require('../../errors/formatResponse');
 
 const create = (req, res) => {
   req.model.create(req.body, (err, result) => {
     if (err) {
       res.status(httpStatus.INTERNAL_SERVER_ERROR)
-        .json(errorFormatter(err, 'mongoose'));
+        .json(formatErrorResponse(err, 'mongoose'));
       return;
     }