This example demonstrates how to use Express 4.x and Passport to authenticate users using Facebook. Use this example as a starting point for your own web applications.
To install this example on your computer, clone the repository and install dependencies.
$ git clone git@github.com:passport/express-4.x-facebook-example.git
$ cd express-4.x-facebook-example
$ npm install
The example uses environment variables to configure the consumer key and consumer secret needed to access Facebook's API. Start the server with those variables set to the appropriate credentials.
$ CLIENT_ID=__FACEBOOK_CLIENT_ID__ CLIENT_SECRET=__FACEBOOK_CLIENT_SECRET__ node server.js
Open a web browser and navigate to http://localhost:3000/ to see the example in action.