Search⌘ K
AI Features
Home
Courses
Web Development with Golang and Beego

Handling OAuth 2.0 Redirects

Explore the process of managing OAuth 2.0 redirects in a Beego application. Understand how to receive the authorization code from Facebook, exchange it for an access token, fetch user details, create user sessions, and set up necessary routes for seamless user authentication.

We'll cover the following...

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.

Go (1.18.2)
package routers
import (
	"beego_notes/controllers"
	beego "github.com/beego/beego/v2/server/web"
)
func init() {
	beego.Router("/", &controllers.MainController{})
	beego.Router("/notes", &controllers.NotesController{}, "get:NotesIndex")
	beego.Router("/notes/new", &controllers.NotesController{}, "get:NotesNewForm")
	beego.Router("/notes", &controllers.NotesController{}, "post:NotesCreate")
	beego.Router("/notes/:id([0-9]+)", &controllers.NotesController{}, "get:NotesShow")
	beego.Router("/notes/edit/:id([0-9]+)", &controllers.NotesController{}, "get:NotesEditPage")
	beego.Router("/notes/:id", &controllers.NotesController{}, "post:NotesUpdate")
	beego.Router("/notes/:id", &controllers.NotesController{}, "delete:NotesDelete")
	beego.Router("/signup", &controllers.SessionsController{}, "get:SignupPage")
	beego.Router("/login", &controllers.SessionsController{}, "get:LoginPage")
	beego.Router("/signup", &controllers.SessionsController{}, "post:Signup")
	beego.Router("/login", &controllers.SessionsController{}, "post:Login")
	beego.Router("/logout", &controllers.SessionsController{}, "post:Logout")
	beego.Router("/auth/facebook", &controllers.OauthController{}, "get:FacebookAuth")
}

Here, we added a new Beego router:

  • Line 26: This line routes the GET /auth/facebook API to the FacebookAuth() method of the ...