I am looking for sdk that can help me do the client flow login in my Xamarin app(shared assets with forms UI) for Facebook and LinkedIn for iOS and android. I've got it working using Xamarin.Auth server flow but having hard time in client flow. For facebook, I tried Xamarin Android Facebook, Xamarin iOS Facebook and cross platform facebook sdk by outercuvce foundation. The official xamarin facebook sdk's are in very bad shape, don't work and no documentation has been provided as well. I couldn't find any for LinkedIn though. My main objective is to use facebook and linkedin app to do the authentication to provide better user experience.