Add Facebook and Google authentication to your HTTP REST API in Actix-web

I created this project while learning Rust. Project shows how to handle Facebook and Google token verification in Rust using Actix-Web. Hope this helps somebody out there.

How does it work?

• All magic happens in this file on this line
• Next, include AuthenticatedUser struct in your routes like this on line 9
• Under the hood, it uses google-jwt-verify library to verify Google Sign-in token and uses reqwest to verify Facebook token. Once verified, it stores the token details in Redis with auto expiration time based on the token expiration time.

How to use?

• Make sure to add Google client ID, Facebook details in .env file. Once .env file is filled, this data should seamlessly flow to the rest of the application.
• User would authenticate using Google Sign in or Facebook Login in the browser.
  • Browser would submit either google or facebook token in Authorization header of the HTTP request
  • Actix will verify the token and proceed depending on whether token is valid/invalid. If invalid, returns 401 error. If valid, it proceeds with rest of the steps.
  • For this App, all GET requests are non-authenticated so they are allowed without any verification.

Note: Instead of using google-jwt-verify crate, this project uses a local forked copy of it. I simply modified to handle Async mutation in the library. Similar changes were submitted by other user. Hence, I kept my changes local. All credits go to the author of this library.