As we all know authentication plays an important role in every site. Here In this blog I am explaining how we will authenticate our site in node.js as a backend and mongoDb as a database. To authenticate I am using passport.js which will help to login with facebook,twitter and google etc.

In this article I am explaining local authentication with a mongoDb backend.

Prerequisites:

Install node.js,express.js and mongoDb .For installing them please read my previous blog.

when all installation are completed then we will create a new project using express.

1. express AuthApp

2. cd AuthApp

3. npm install

Next we will install passport module by using below command.

1. npm install passport

Read full blog Here>> Chapter 3: Authentication using node.js(passport.js) and mongoDb