迅速获得Facebook AccessToken

Question

I'm trying to obtain the Facebook Accesstoken. when I print accessToken it returns a object with appId and authenticationToken, How do I parse out the token? I am using the following code:

let loginManager = LoginManager()
    loginManager.logIn([ .publicProfile, .userFriends, .email ], viewController: self) { loginResult in
        switch loginResult {
        case .failed(let error):
            print(error)
        case .cancelled:
            print("User cancelled login.")
        case .success(let grantedPermissions, let declinedPermissions, let accessToken):

            print("accessToken: " + String(describing: accessToken))
            break

        }
    }

Answer 1

The token you're trying to parse is a struct

the actual token is:

accessToken.authenticationToken

your code should be like that:

let loginManager = LoginManager()
loginManager.logIn([ .publicProfile, .userFriends, .email ], viewController: self) { loginResult in
    switch loginResult {
    case .failed(let error):
        print(error)
    case .cancelled:
        print("User cancelled login.")
    case .success(let grantedPermissions, let declinedPermissions, let accessToken):

        print("accessToken: " +  accessToken.authenticationToken)
        break

    }
}