how to connect local mongoDb to node
//with mongoose
const mongoose = require('mongoose');
mongoose.connect(
mongoURI,
{
useNewUrlParser: true,
useUnifiedTopology: true
},
(err) => {
if (err) console.log(err);
app.listen(3000);
}
);
/********************************************************************/
// with mongodb lib
const mongodb = require('mongodb');
const MongoClient = mongodb.MongoClient;
let _db;
// you can replace test with any database name that you want
const mongoConnect = (cb) => {
MongoClient.connect('mongodb://127.0.0.1:27017/test')
.then((client) => {
_db = client.db();
cb()
console.log('Connected to MongoDb');
}).catch((err) => {
console.log(err);
});
}
//after your server started you can use getDb to access mongo Database
const getDb = () => {
if (_db) return _db;
throw 'No database found';
}
exports.mongoConnect = mongoConnect;
exports.getDb = getDb;