backend library now complete

server/api/controllers/controller.js

@@ -0,0 +1,18 @@
+import mongoose from 'mongoose';
+import Example from './../models/model.js';
+
+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 uploadExample = (request, response, next) =>
+  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

server/api/models/model.js

@@ -0,0 +1,16 @@
+import mongoose from 'mongoose';
+
+const instance = new mongoose.Schema({
+  _id: mongoose.Schema.Types.ObjectId, // _id is set by default, (you can remove this line)
+  /*
+    name = property of document object
+    String = type of value   --->   https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures
+  */
+  name: String,
+});
+
+// document = model name   --->   https://mongoosejs.com/docs/guide.html
+// note: use a singular name, mongoose automatically creates a collection like so -> model: 'Person' === collection: 'people'
+const document = 'Example';
+
+export default mongoose.model(document, instance);

server/api/routes/route.js

@@ -0,0 +1,16 @@
+import express from 'express';
+import { getExamples, uploadExample } from './../controllers/controller.js'; // import request & response function
+
+// initialize router
+const router = express.Router();
+
+/*
+  request methods   --->   https://www.tutorialspoint.com/http/http_methods.htm
+  1st param = extended url path
+  2nd param = middlewares (optional)
+  3rd param = request & response function (controller)
+*/
+router.get('/', (request, response, next) => next(), getExamples); // current path: http://localhost:8080/api/v1/example
+router.post('/upload', (request, response, next) => next(), uploadExample); // current path: http://localhost:8080/api/v1/example/upload
+
+export default router;