Link mongodb and set environment & model for the project

+PORT=4500
+
+MONGO_URI=mongodb://localhost/facebookbot
\ No newline at end of file

+const mongoose = require('mongoose');
+
+// Define Schemes
+const lectureSchema = new mongoose.Schema({
+  lectureid: { type: String, unique: true },
+  lecturename: { type: String},
+  proname: { type: String },
+  avg_rate: { type: Number }
+});
+
+const reviewSchema = new mongoose.Schema({
+  lectureid: { type: String, required: true, unique: true },
+  review: { type: String, required: true }
+});
+
+// // Create new lecture document
+lectureSchema.statics.create = function (payload) {
+  // this === Model
+  const lecture = new this(payload);
+  // return Promise
+  return lecture.save();
+};
+
+// Find All
+lectureSchema.statics.findAll = function () {
+  // return promise
+  // V4부터 exec() 필요없음
+  return this.find({});
+};
+
+// Find One by lectureid
+lectureSchema.statics.findOneBylectureid = function (lectureid) {
+  return this.findOne({ lectureid });
+};
+
+// Update by lectureid
+lectureSchema.statics.updateBylectureid = function (lectureid, payload) {
+  // { new: true }: return the modified document rather than the original. defaults to false
+  return this.findOneAndUpdate({ lectureid }, payload, { new: true });
+};
+
+// Delete by lectureid
+lectureSchema.statics.deleteBylectureid = function (lectureid) {
+  return this.remove({ lectureid });
+};
+
+// Create Model & Export
+module.exports = mongoose.model('Lecture', lectureSchema);

+const mongoose = require('mongoose');
+
+
+const reviewSchema = new mongoose.Schema({
+  lectureid: { type: String, required: true, unique: true },
+  review: { type: String, required: true }
+});
+
+// // Create new review document
+reviewSchema.statics.create = function (payload) {
+  // this === Model
+  const review = new this(payload);
+  // return Promise
+  return review.save();
+};
+
+// Find All
+reviewSchema.statics.findAll = function () {
+  // return promise
+  // V4부터 exec() 필요없음
+  return this.find({});
+};
+
+// Find One by reviewid
+reviewSchema.statics.findOneByreviewid = function (reviewid) {
+  return this.findOne({ reviewid });
+};
+
+// Update by reviewid
+reviewSchema.statics.updateByreviewid = function (reviewid, payload) {
+  // { new: true }: return the modified document rather than the original. defaults to false
+  return this.findOneAndUpdate({ reviewid }, payload, { new: true });
+};
+
+// Delete by reviewid
+reviewSchema.statics.deleteByreviewid = function (reviewid) {
+  return this.remove({ reviewid });
+};
+
+// Create Model & Export
+module.exports = mongoose.model('Review', reviewSchema);
\ No newline at end of file

@@ -177,6 +177,11 @@
       "resolved": "https://registry.npmjs.org/destroy/-/destroy-1.0.4.tgz",
       "integrity": "sha1-l4hXRCxEdJ5CBmE+N5RiBYJqvYA="
     },
+    "dotenv": {
+      "version": "8.0.0",
+      "resolved": "https://registry.npmjs.org/dotenv/-/dotenv-8.0.0.tgz",
+      "integrity": "sha512-30xVGqjLjiUOArT4+M5q9sYdvuR4riM6yK9wMcas9Vbp6zZa+ocC9dp6QoftuhTPhFAiLK/0C5Ni2nou/Bk8lg=="
+    },
     "ecc-jsbn": {
       "version": "0.1.2",
       "resolved": "https://registry.npmjs.org/ecc-jsbn/-/ecc-jsbn-0.1.2.tgz",

@@ -11,6 +11,7 @@
   "license": "ISC",
   "dependencies": {
     "body-parser": "^1.19.0",
+    "dotenv": "^8.0.0",
     "express": "^4.17.0",
     "mongoose": "^5.5.11",
     "request": "^2.88.0"

+const router = require('express').Router();
+const Lecture = require('../models/lecture');
+
+// Find All
+router.get('/', (req, res) => {
+  Lecture.findAll()
+    .then((lectures) => {
+      if (!lectures.length) return res.status(404).send({ err: 'Lecture not found' });
+      res.send(`find successfully: ${lectures}`);
+    })
+    .catch(err => res.status(500).send(err));
+});
+
+// Find One by lectureid
+router.get('/lectureid/:lectureid', (req, res) => {
+  Lecture.findOneBylectureid(req.params.lectureid)
+    .then((lecture) => {
+      if (!lecture) return res.status(404).send({ err: 'Lecture not found' });
+      res.send(`findOne successfully: ${lecture}`);
+    })
+    .catch(err => res.status(500).send(err));
+});
+
+// Create new lecture document
+router.post('/', (req, res) => {
+  console.log(req.body)
+  Lecture.create(req.body)
+    .then(lecture => res.send(lecture))
+    .catch(err => res.status(500).send(err));
+});
+
+// Update by lectureid
+router.put('/lectureid/:lectureid', (req, res) => {
+  Lecture.updateBylectureid(req.params.lectureid, req.body)
+    .then(lecture => res.send(lecture))
+    .catch(err => res.status(500).send(err));
+});
+
+// Delete by lectureid
+router.delete('/lectureid/:lectureid', (req, res) => {
+  Lecture.deleteBylectureid(req.params.lectureid)
+    .then(() => res.sendStatus(200))
+    .catch(err => res.status(500).send(err));
+});
+
+module.exports = router;
\ No newline at end of file

+const router = require('express').Router();
+const Review = require('../models/review');
+
+// Find All
+router.get('/', (req, res) => {
+  Review.findAll()
+    .then((reviews) => {
+      if (!reviews.length) return res.status(404).send({ err: 'Review not found' });
+      res.send(`find successfully: ${reviews}`);
+    })
+    .catch(err => res.status(500).send(err));
+});
+
+// Find One by reviewid
+router.get('/reviewid/:reviewid', (req, res) => {
+  Review.findOneByreviewid(req.params.reviewid)
+    .then((review) => {
+      if (!review) return res.status(404).send({ err: 'Review not found' });
+      res.send(`findOne successfully: ${review}`);
+    })
+    .catch(err => res.status(500).send(err));
+});
+
+// Create new review document
+router.post('/', (req, res) => {
+  console.log(req.body)
+  Review.create(req.body)
+    .then(review => res.send(review))
+    .catch(err => res.status(500).send(err));
+});
+
+// Update by reviewid
+router.put('/reviewid/:reviewid', (req, res) => {
+  Review.updateByreviewid(req.params.reviewid, req.body)
+    .then(review => res.send(review))
+    .catch(err => res.status(500).send(err));
+});
+
+// Delete by reviewid
+router.delete('/reviewid/:reviewid', (req, res) => {
+  Review.deleteByreviewid(req.params.reviewid)
+    .then(() => res.sendStatus(200))
+    .catch(err => res.status(500).send(err));
+});
+
+module.exports = router;
\ No newline at end of file

+// ENV
+require('dotenv').config();
+
+// DEPENDENCIES
+const express = require('express');
+const mongoose = require('mongoose');
+const bodyParser = require('body-parser');
+
+const app = express();
+const port = process.env.PORT || 4500;
+
+// Static File Service
+app.use(express.static('public'));
+// Body-parser
+app.use(bodyParser.urlencoded({ extended: true }));
+app.use(bodyParser.json());
+
+// Node의 native Promise 사용
+mongoose.Promise = global.Promise;
+
+// Connect to MongoDB
+mongoose.connect(process.env.MONGO_URI)
+  .then(() => console.log('Successfully connected to mongodb'))
+  .catch(e => console.error(e));
+
+// ROUTERS
+app.use('/lectures', require('./routes/lectures'));
+app.use('/reviews', require('./routes/reviews'));
+app.listen(port, () => console.log(`Server listening on port ${port}`));
\ No newline at end of file