Database (MongoDB with Mongoose)
Mongoose connection
Section titled “Mongoose connection”Make sure to have mongodb running first!
mongod --dbpath data/
package.json
"dependencies": { "mongoose": "^4.5.5",}server.js (ECMA 6)
import mongoose from 'mongoose';
mongoose.connect('mongodb://localhost:27017/stackoverflow-example');const db = mongoose.connection;db.on('error', console.error.bind(console, 'DB connection error!'));server.js (ECMA 5.1)
var mongoose = require('mongoose');
mongoose.connect('mongodb://localhost:27017/stackoverflow-example');var db = mongoose.connection;db.on('error', console.error.bind(console, 'DB connection error!'));Define your model(s):
app/models/user.js (ECMA 6)
import mongoose from 'mongoose';
const userSchema = new mongoose.Schema({ name: String, password: String});
const User = mongoose.model('User', userSchema);
export default User;app/model/user.js (ECMA 5.1)
var mongoose = require('mongoose');
var userSchema = new mongoose.Schema({ name: String, password: String});
var User = mongoose.model('User', userSchema);
module.exports = UserInsert data
Section titled “Insert data”ECMA 6:
const user = new User({ name: 'Stack', password: 'Overflow', }) ;
user.save((err) => { if (err) throw err;
console.log('User saved!');});ECMA5.1:
var user = new User({ name: 'Stack', password: 'Overflow', }) ;
user.save(function (err) { if (err) throw err;
console.log('User saved!');});Read data
Section titled “Read data”ECMA6:
User.findOne({ name: 'stack'}, (err, user) => { if (err) throw err;
if (!user) { console.log('No user was found'); } else { console.log('User was found'); }});ECMA5.1:
User.findOne({ name: 'stack'}, function (err, user) { if (err) throw err;
if (!user) { console.log('No user was found'); } else { console.log('User was found'); }});