Introduction

AppAuth for iOS and macOS is a client SDK for communicating with OAuth 2.0 and OpenID Connect providers. It strives to directly map the requests and responses of those specifications, while following the idiomatic style of the implementation language. In addition to mapping the raw protocol flows, convenience methods are available to assist with common tasks like performing an action with fresh tokens.

It follows the best practices set out in RFC 8252 - OAuth 2.0 for Native Apps including using SFAuthenticationSession and SFSafariViewController on iOS for the auth request. UIWebView and WKWebView are explicitly not supported due to the security and usability reasons explained in Section 8.12 of RFC 8252.

It also supports the PKCE extension to OAuth which was created to secure authorization codes in public clients when custom URI scheme redirects are used. The library is friendly to other extensions (standard or otherwise) with the ability to handle additional params in all protocol requests and responses.

Homepage: http://openid.github.io/AppAuth-iOS/
API Documentation: http://openid.github.io/AppAuth-iOS/docs/latest
Git Repository: https://github.com/openid/AppAuth-iOS