How to properly organize authentication via email and via social networks in an IOS application?

Question

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Hello!
Tell me how to organize the authentication process in IOS applications so that the user can log in both via email (regular login / password) and via social networks. networks (eg Facebook)?
Or maybe,. are there any articles on this topic?
Thank you.

Answer 1

About authorization via email - you can either collect your bike or use parse.com. For this task, we made an authentication system on our server. As for social networks, you can do it either through their built-in SDK or through OAuth, fortunately, many support OAuth2. What networks are needed? VK, FB and OK support OAuth2, with TW it will be a little more difficult.