Re-authenticating User Credentials Swift

Question

I wish to re-authenticate a user prior to allowing them to change their login information. However, due to the recent Firebase update, I found the documentation rather unhel

Answer 1

Getting the FIRAuthCredential object depends on what provider you want to use to reauthenticate.

Email:

let credential = FIREmailPasswordAuthProvider.credentialWithEmail(email, password: password)

Facebook:

let credential = FIRFacebookAuthProvider.credentialWithAccessToken(FBSDKAccessToken.currentAccessToken().tokenString)

Twitter:

let credential = FIRTwitterAuthProvider.credentialWithToken(session.authToken, secret: session.authTokenSecret)

Google:

let authentication = user.authentication
let credential = FIRGoogleAuthProvider.credentialWithIDToken(authentication.idToken, accessToken: authentication.accessToken)