How to authenticate a user in Parse iOS SDK using OAuth?

Question

Parse Server offers OAuth authentication. How can I use the Parse Server's predefined OAuth modules, e.g. Facebook, to sign up a new user or login an existing user of the '_User' class?

The Parse Server docs give examples on how to configure the OAuth modules. But how do I use it in an iOS project to login or signup a user?

Jacolack · Accepted Answer · 2019-12-14 11:20:01Z

9

1, create a class extends from both NSObject and PFUserAuthenticationDelegate.

class AuthDelegate:NSObject, PFUserAuthenticationDelegate {
    func restoreAuthenticationWithAuthData(authData: [String : String]?) -> Bool {
        return true
    }
}

2, register this authentication delegate

// parmeter 'forAuthType' is the name of file defined in 
// https://github.com/parse-community/parse-server/blob/master/src/Adapters/Auth/index.js
// such as: google, github, linkedin ......
PFUser.registerAuthenticationDelegate(AuthDelegate(), forAuthType: "google")

3, using PFUser.logInWithAuthTypeInBackground method to store user info to _User

// for google oauth, authData format will be
// ["id":"PUT_USER_ID_HERE","accesstoken":"PUT_TOKEN_HERE"]
PFUser.logInWithAuthType(inBackground: "google", authData:[.....])

4, you will see a record is created in _User, with only objectId and authData

edited Dec 14, 2019 at 11:20

Jacolack

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answered Jun 7, 2016 at 20:14

Mingchao Liao

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5 Comments

Kesong Xie Over a year ago

I couldn't find any useful information regarding third party login with parse. I wonder whether i can integrate with Spotify login as well?

hhanesand Over a year ago

@KesongXie you can see the supported providers here github.com/parse-community/parse-server/tree/master/src/…

Jacolack Over a year ago

How could I get a callback for when the logInWithAuthType function finishes? I read here that it returns "A BFTask that is resolved to @YES if linking succeeds." But what does that mean? How can I use that?

Jacolack Over a year ago

Nvm, I found an example here

ashishn Over a year ago

@Jacolack If you are still looking for then check this this sample code that shows how it is handled. github.com/back4app/SignInWithApple/blob/master/Swift/app/…

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