todos express facebook

This example demonstrates how to use Express 4.x and
Passport to log users in with Facebook.
Use this example as a starting point for your own web applications.

Quick Start

To get started with this example, clone the repository and install the
dependencies.

$ git clone [email protected]:passport/express-4.x-facebook-example.git
$ cd express-4.x-facebook-example
$ npm install

This example requires credentials from Facebook, which can be obtained by
creating an
app in the App Dashboard.
The OAuth redirect URI of the app should be set to: http://localhost:3000/oauth2/redirect/www.facebook.com

Once credentials have been obtained, create a .env file and add the following
environment variables:

FACEBOOK_CLIENT_ID={{INSERT_APP_ID_HERE}}
FACEBOOK_CLIENT_SECRET={{INSERT_APP_SECRET_HERE}}

Start the server.

$ npm start

Navigate to http://localhost:3000.

Overview

This example illustrates how to use Passport and
the passport-facebook
strategy within an Express application to log users in
with Facebook.

The example builds upon the scaffolding created by Express generator,
and uses EJS as a view engine and plain CSS for styling. This
scaffolding was generated by executing:

$ express --view ejs express-4.x-facebook-example

The example uses SQLite for storing user accounts.
SQLite is a lightweight database that works well for development, including this
example.

Added to the scaffolding are files which add authentication to the application.

• boot/db.js

  This file initializes the database by creating the tables used to store user
  accounts and credentials.

• boot/auth.js

  This file initializes Passport. It configures the Facebook strategy and
  supplies the serialization functions used for session management.

• routes/auth.js

  This file defines the routes used for authentication. In particular, there
  are three routes used to authenticate with Facebook:

  • GET /login

    This route renders a page that prompts the user to login with Facebook.

  • GET /login/federated/www.facebook.com

    This route begins the authentication sequence by redirecting the user to
    Facebook.

  • POST /oauth2/redirect/www.facebook.com

    This route completes the authentication sequence when Facebook redirects the
    user back to the application. When a new user logs in, a user account is
    automatically created and their Facebook account is linked. When an
    existing user returns, they are logged in to their linked account.

License

The Unlicense