hotfix: forgot to refine controllers for dev-exp

server/api/controllers/controller.js

@@ -1,18 +1,26 @@
 import mongoose from 'mongoose';
 import Example from './../models/model.js';
+// more about response status codes   --->   https://restapitutorial.com/httpstatuscodes.html
 
-export const getExamples = (request, response, next) =>
-  Example.find() // what is .find() ???   --->   https://mongoosejs.com/docs/queries.html
-    .then((data) => response.status(200).json(data))
-    .catch((error) => response.status(500).json(error));
+export const getExamples = async (request, response, next) => {
+  try {
+    const allExamples = await Example.find(); // what is .find() ???   --->   https://mongoosejs.com/docs/queries.html
+    response.status(200).json(allExamples);
+  } catch (error) {
+    response.status(500).json(error);
+  }
+};
 
-export const uploadExample = (request, response, next) =>
-  new Example({
+export const uploadExample = async (request, response, next) => {
+  let newExample = new Example({
     _id: mongoose.Types.ObjectId(), // _id is set by default, (you can remove this line)
     name: request.body.fieldName, // fieldName === name used on client side
-  })
-    .save() // what is .save() ???   --->   https://mongoosejs.com/docs/api.html#document_Document-save
-    .then.then((data) => response.status(201).json(data))
-    .catch((error) => response.status(500).json(error));
+  });
 
-// more about response status codes   --->   https://restapitutorial.com/httpstatuscodes.html
+  try {
+    const savedExample = await newExample.save(); // what is .save() ???   --->   https://mongoosejs.com/docs/api.html#document_Document-save
+    response.status(201).json(savedExample);
+  } catch (error) {
+    response.status(500).json(error);
+  }
+};