![]() ![]() In this article, you'll see how to implement these 3 routes, and how to A route that does something with the access token.A route that exchanges an auth code for an access token and stores the access token.A route that displays a UI which can open Facebook's login dialog.That means, to implement Facebook login, your Express app needs 3 routes: Your app is responsible for storing the access token. Facebook verifies the access code and sends back an access token your app can use for authorization going forward. Your app pulls the code parameter from the query string, and makes a POST request to the Facebook with the access code.An auth code is a short-lived code that you can exchange for a long-lived access token. The dialog redirects back to your app client's domain with an auth code in the query string.Your app client opens a Facebook login dialog with your app's id and a URL to redirect the user to when they successfully authorize your app.Your standard web OAuth 2.0 flow has 3 steps: With Express, but without Passport or any dedicated OAuth libraries. With that in mind, here's how you can build a basic Facebook OAuth flow Plus Passport might be overkill if you don't want to support multiple ![]() Necessarily need to use Passport: it's a great framework, but usingĪ framework robs you of the opportunity to learn how to do it yourself. exports = passport Īside for the Passport magic, you can see that we’re either updating the user, if the user is found, or creating a new user, if a user is not found.Most Facebook login tutorials for Node.js use Passport. ![]() use ( new LinkedInStrategy ( )) // serialize user into the session init () module. ![]() Var passport = require ( 'passport' ) var LinkedInStrategy = require ( 'passport-linkedin' ) var User = require ( './models/user' ) var config = require ( './_config' ) var init = require ( './init' ) passport. ![]()
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