Lightweight user authentication with OAuth (Web)Simple Sign-In with Google provides Google sign-in with OAuth 2.0 for Android, iOS, Windows, Mac, Universal Windows Platform (UWP) and WebGL apps made with Unity.Any doubts? Try it in real apps! Need sign-in for other platforms?● Simple Sign-In with Google● Simple Sign-In with Apple● Simple Sign-In with Facebook● Simple Sign-In with X (Twitter)● Simple Sign-In with Telegram● Simple Sign-In with Microsoft● Simple Sign-In with TikTokAuthentication may be a headache, especially for beginners, especially on different platforms. So I decided to take a fresh look of current possibilities that Google and Unity provide at the moment. And after a week of research I said "Bingo!". My asset is an extremely simple solution with about 200 lines of code only. Lightweight, tiny and clean, with no massive plugins and 3rd party libs!Benefits● Cross-platform user auth for cross-platform games and apps● No plugins, not 3rd party libs, no dependencies● No impact to build size● Get access tokens for integration with other Google services● More security for client-server apps (get access tokens on a client, get all user data on a server to avoid tampering)● JSON Web Tokens (JWT) validation● SFSafariViewController is used on iOS (required by App Store review)● Deep linking for Windows (UNITY_STANDALONE_WIN)Setup stepsPlease visit our GitHub for setup instructions.Generic workflow (for platforms that support deep linking)● Your app navigates users to Google using a default web browser● Users perform sign-in to their Google account● Google redirects users to your app (using deep linking when possible) and provides an authorization code in URI parameters● The app is activated and obtains an authorization code● The app exchanges the code for an access token● The app requests user data with the access token (ID, name, email and other data according access scope defined)Loopback flow for Editor and Windows (optional)● Google redirects users to http://localhost:PORT/● The app listens to localhost using HttpListenerMiddlware flow for WebGL● Redirect to Authorization Middleware is used to temporary save an auth code● The app obtains the code from Authorization Middleware with a POST requestKnown issuesPlease visit our GitHub for known issues.Support● GitHub - Wiki● GitHub - FAQ & Troubleshooting● GitHub - Bugs & requests● Discord - Questions, live chat with developers● Unity Forums - DiscussionIt would be super awesome if you rate ★★★★★ our asset and leave your feedback! Your reviews inspire us for creating and improving our assets. Thanks and good luck with your projects!
