Firebase AuthenticationのTwitter認証Sample.

FirebaseTwitterAuthenticationSample.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using System.Linq;
using TwitterKit.Unity;
using Firebase;
using Firebase.Database;
using Firebase.Unity.Editor;

public class PUFirebaseTwitterLogin : MonoBehaviour {

	private string _AccessToken;
	private string _Secret;
	private string _UserName;

	void Start () {
		Twitter.Init();
		this.TwitterAuth();
	}

  	public void TwitterAuth() {
		TwitterSession session = Twitter.Session;
		if (session == null) {
			Twitter.LogIn(TwitterLoginComplete, TwitterLoginFailure);
		} else {
			TwitterLoginComplete(session);
		}
	}

	public void TwitterLoginComplete(TwitterSession session) {
		Debug.Log("[Info] : Login success. " + session.authToken);
		_AccessToken = session.authToken.token;
		_Secret      = session.authToken.secret;
		_UserName    = session.userName;

		this.FirebaseLogin();
	}

	public void TwitterLoginFailure(ApiError error) {
		Debug.Log("[Error ] : Login faild code =" + error.code + " msg =" + error.message);
	}

	public void FirebaseLogin() {

		Firebase.Auth.FirebaseAuth auth = Firebase.Auth.FirebaseAuth.DefaultInstance;
		Firebase.Auth.Credential credential = Firebase.Auth.TwitterAuthProvider.GetCredential(_AccessToken, _Secret);

		auth.SignInWithCredentialAsync(credential).ContinueWith(task => {
			if (task.IsCanceled) {
				Debug.LogError("[Info ] : SignInWithCredentialAsync canceled.");
				return;
			}
			if (task.IsFaulted) {
				Debug.LogError("[Error ] : SignInWithCredentialAsync fatal. an error: " + task.Exception);
				return;
			}

			Firebase.Auth.FirebaseUser newUser = task.Result;
			Debug.LogFormat("User signed in successfully: {0} ({1})", newUser.DisplayName, newUser.UserId);
		});
	}

}