from nodejs app mongose.save() block and doesn't do anything? - node.js

Question

I'm trying to use a very basic MongoDB method is to save a document on a database with mongoose.
1.I installed my MongoDB in centos 7
2.Create a database on the Mongo shell using: use mydatabase and insert a document inside it as normal.
3.Install mongoose and make a connection between my nodejs app and the MongoDB:
mongoose.connect('mongodb://localhost:27017/goClass_test', {
useUnifiedTopology: true,
useNewUrlParser: true,
});
4. test the connection and all is fine with:
db.once('open', () => {
console.log('DB Connected');
});
Import the model schema as normal:
var { Classe } = require('../DBModels/GoClassDBModels/classes');
try to add new document like this:
var newClasse = new Classe({
label: 'hello',
level: 'level',
});
newClasse.save()
My Model is:
const mongoose = require('mongoose');
const { Schema } = require('mongoose');
var ObjectId = mongoose.Schema.Types.ObjectId;
var classSchema = new Schema({
directeurId: {
type: ObjectId,
},
label: {
type: String,
},
level: {
type: String,
},
studentNbr: {
type: String,
},
});
var Classe = mongoose.model('Classes', classSchema);
module.exports = { Classe };
SERVER.JS:
const mongoose = require('mongoose');
const express = require('express');
const bodyParser = require('body-parser');
const http = require('http');
const cookieParser = require('cookie-parser');
const _ = require('lodash');
var app = express();
var server = http.createServer(app);
server.listen(80, () => {
console.log('server is started on 80');
});
mongoose.connect('mongodb://localhost:27017/goClass_test', {
useUnifiedTopology: true,
useNewUrlParser: true,
});
console.log(mongoose.connection.host);
console.log(mongoose.connection.port);
let db = mongoose.connection;
db.once('open', () => {
console.log('DB Connected');
});
db.on('error', (err) => {
console.log(err);
});
var { Classe } = require('../DBModels/GoClassDBModels/classes');
const goClasseRouteDirecteur = require('./GOClassRoutes/DirecteurRoutes/subRoutesClass');
app.use(bodyParser.json());
app.use(cookieParser(['lakkini.com']));
app.use(
bodyParser.urlencoded({
extended: false,
})
);
app.use(function (req, res, next) {
res.set(
'Cache-Control',
'no-cache, private, no-store, must-revalidate, max-stale=0, post-check=0, pre-check=0'
);
next();
});
app.set('view engine', 'hbs');
app.use(express.static('/home/admin/SMS'));
app.use(express.static('/home/admin/assets'));
app.get('/', (req, res) => {
res.render('SMS/dashboard.hbs');
});
app.get('/classes', (req, res) => {
res.render('SMS/classes.hbs');
});
app.get('/inscription', (req, res) => {
res.render('SMS/inscriptions.hbs');
});
app.post('/saveClasse', (req, res) => {
var newClasse = new Classe({
label: 'hello',
level: 'level',
});
console.log('im gonna save the new class');
newClasse.save((err, response) => {
if (err) console.log(err);
else console.log(response);
});
});
The problem is: nothing happened. No document has been inserted and no errors.
Can you suggest to me, please ?
PS: I'm trying to request from an HTTP server without HTTPS.
will that affect my requests nd block the save to the database?
result:
click to see the picture of the result please

Answer 1

Since the whole file was not given for mongoose connection and where save function is called , assuming you have structured it properly i'm giving my answer.
I was able to do this way,
The schema (same as yours) :
const mongoose = require("mongoose");
const { Schema } = require("mongoose");
var ObjectId = mongoose.Schema.Types.ObjectId;
var classSchema = new Schema({
directeurId: {
type: ObjectId,
},
label: {
type: String,
},
level: {
type: String,
},
studentNbr: {
type: String,
},
});
var Classe = mongoose.model("Classes", classSchema);
module.exports = { Classe };
Function to insert:
mongoose.connect("mongodb://localhost:27017/goClass_test", {
useUnifiedTopology: true,
useNewUrlParser: true,
});
var db = mongoose.connection;
db.on("error", console.error.bind(console, "connection error:"));
db.once("open", () => {
console.log("DB Connected");
var newClasse = new Classe({
label: "hello",
level: "level",
});
newClasse.save();
});
UPDATE:
SERVER.JS
const mongoose = require("mongoose");
const express = require("express");
const bodyParser = require("body-parser");
const http = require("http");
const cookieParser = require("cookie-parser");
const _ = require("lodash");
var app = express();
var server = http.createServer(app);
server.listen(80, () => {
console.log("server is started on 80");
});
mongoose.connect("mongodb://localhost:27017/goClass_test", {
useUnifiedTopology: true,
useNewUrlParser: true,
});
console.log(mongoose.connection.host);
console.log(mongoose.connection.port);
let db = mongoose.connection;
db.once("open", () => {
console.log("DB Connected");
});
db.on("error", (err) => {
console.log(err);
});
var { Classe } = require("./models/Classe");
// const goClasseRouteDirecteur = require('./GOClassRoutes/DirecteurRoutes/subRoutesClass');
app.use(bodyParser.json());
app.use(cookieParser(["lakkini.com"]));
app.use(
bodyParser.urlencoded({
extended: false,
})
);
app.use(function (req, res, next) {
res.set(
"Cache-Control",
"no-cache, private, no-store, must-revalidate, max-stale=0, post-check=0, pre-check=0"
);
next();
});
app.set("view engine", "hbs");
// app.use(express.static("/home/admin/SMS"));
// app.use(express.static("/home/admin/assets"));
// app.get('/', (req, res) => {
// res.render('SMS/dashboard.hbs');
// });
// app.get('/classes', (req, res) => {
// res.render('SMS/classes.hbs');
// });
// app.get('/inscription', (req, res) => {
// res.render('SMS/inscriptions.hbs');
// });
app.post("/saveClasse", (req, res) => {
var newClasse = new Classe({
label: "hello",
level: "level",
});
console.log("im gonna save the new class");
newClasse.save((err, response) => {
if (err) console.log(err);
else console.log("RESPONSE" + response);
});
});

Answer 2

I found the issue, but I don't understand why that.
the first structure was:
**
DBModel
classes.js
Server
server.js**
the structure right now:
**
DBModel
classes.js
server.js
**
I make out the server from that folder and all working fine...??
why that?