const mongoose = require('mongoose')
mongoose.connect('mongodb://localhost:27017/lab', {
    useNewUrlParser: true,
    useUnifiedTopology: true,
    useCreateIndex: true
})
mongoose.connection.on('connected', () => {
    console.log('DB SUCCESS');
})
mongoose.connection.on('error', (err) => {
    console.log('DB ERROR', err);
})