Express에서 Mongoose로 DB 연결

1. npm을 통해 mongoose 모듈 설치

npm install mongoose

2. 자바스크립트 작성

connection-test.js

var mongoose = require('mongoose');
mongoose.connect('mongodb://localhost/mydb');

var db = mongoose.connection;
db.on('error', console.error.bind(console, 'connection error:'));
db.once('open', function() {
    // we're connected!
    console.log('connected successfully');
});

3. 실행

node connection-test.js