Handling OAuth 2.0 Redirects

Process

Handling the OAuth redirect callback is a critical part of implementing OAuth authentication in an application. This lesson demonstrates handling the OAuth 2.0 callback from Facebook in a Beego application.

It involves the the following steps:

1. Receiving the authorization code

2. Exchanging the authorization code for a token

3. Using this token to fetch user details

4. Creating a session to keep the user logged in

Setting up the route

Let’s set up a route to handle the callback URL. We assume that the callback URL is set to /auth/facebook.