Node.js database connectivity with MongoDB?

Question

I create my new Project clientside i am using Angular6 and Serverside i use Node.js now i want to make database connectivity node.js with MongoDB. Previously i used Mysql database, then i heard about MongoDB database but i dont know how to connect MongoDB database with Node.js kindly help me how to connect node.js with MongoDB(which packages i have to install all that and then how to connect,for that good websites and links are available kinly share)

in mysql i used phpmyadmin is used, for mongoDB what is used ?

app.js(node.js)

var createError = require('http-errors');
var express = require('express');
var path = require('path');
var cookieParser = require('cookie-parser');
var logger = require('morgan');
var indexRouter = require('./routes/index');
var usersRouter = require('./routes/users');
var app = express();

// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'pug');
app.use(logger('dev'));
app.use(express.json());
app.use(express.urlencoded({ extended: false }));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));
app.use('/', indexRouter);
app.use('/users', usersRouter);
// catch 404 and forward to error handler
app.use(function(req, res, next) {
   next(createError(404));
});

// error handler
app.use(function(err, req, res, next) {
// set locals, only providing error in development
  res.locals.message = err.message;
  res.locals.error = req.app.get('env') === 'development' ? err : {};

  // render the error page
  res.status(err.status || 500);
  res.render('error');
});

module.exports = app;

Juan Velasquez · Accepted Answer · 2018-10-25 11:56:36Z

3

If you want to deploy your app, mlab its a good option

var MongoClient = require('mongodb').MongoClient;
var url = "mongodb://localhost:27017/<mydb>";

MongoClient.connect(url, function(err, db) {
  if (err) throw err;
  console.log("Database created!");
});

A good option for handle the DB is mongoose (https://www.npmjs.com/package/mongoose)

answered Oct 25, 2018 at 11:56

Juan Velasquez

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3 Comments

Dharmesh Over a year ago

for mysql i used phpmyadmin now for MongoDB what i have to use ?

Juan Velasquez Over a year ago

If you want to use a graphic interface, you can use mongo compass, Robo 3T, you can use the shell as well, I recommend you to see the official documentation to check out what is the best tool for you MongoDB Documentation

Dharmesh Over a year ago

Now dont delete I make mistake I got answer from you Thank you so much

Karan Bhomia · Accepted Answer · 2018-10-25 13:08:43Z

0

Mongoose is a npm module that is widely used for connecting to MongoDB. You can use it with local db or mlab.com.

https://mongoosejs.com/

const mongoose = require('mongoose');
mongoose.connect('mongodb://localhost/test');

answered Oct 25, 2018 at 13:08

Karan Bhomia

1694 silver badges8 bronze badges

Comments

Hussain · Accepted Answer · 2022-02-16 09:53:57Z

0

mongoose = require("mongoose");

const DB = () => {
    mongoose.connect("mongodb://localhost:27017/crud", (err) => {
        if (!err) {
            console.log('connection established');
        } else {
            console.log(' Not connection');
        }
    });
}
module.exports = DB;

answered Feb 16, 2022 at 9:53

Hussain

13810 bronze badges

1 Comment

Community Over a year ago

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