Firebase Provider Data

Question

I am trying to get a Firebase user's provider information (Email, Facebook, Twitter, etc). When I run FIRAuth.auth()?.currentUser.providerID I get and output of Firebase even when the user signs up with Twitter. When I run FIRAuth.auth()?.currentUser.providerData I get [<FIRUserInfoImpl: 0x7a63e7f0>]. How do I get an output of Facebook or Twitter?

Answer 1

    if let providerData = FIRAuth.auth()?.currentUser?.providerData {
        for item in providerData {
            print("\(item.providerID)")
        }
    }