谷歌登錄使用新的 GoogleSignInOptions 獲取訪問令牌 (Google login get access token with new GoogleSignInOptions)

問題描述

谷歌登錄使用新的 GoogleSignInOptions 獲取訪問令牌 (Google login get access token with new GoogleSignInOptions)

mGoogleApiClient = new GoogleApiClient.Builder(this)
        .addConnectionCallbacks(this)
        .addOnConnectionFailedListener(this)
        .addApi(Plus.API)
        .addScope(new Scope("profile"))
        .build();
...
...

String accessToken = GoogleAuthUtil.getToken(GoogleLoginActivity.this,
                            Plus.AccountApi.getAccountName(mGoogleApiClient),
                            "oauth2:profile email");

但現在看來，在 handleSingInResult(GoogleSignInResult result) 我只能用 result.getSignInAccount().getIdToken() 得到一個 id token ;

有誰知道是否可以從這裡獲取訪問令牌（就像以前一樣），如果可以，怎麼辦？任何幫助表示讚賞。

參考解法

方法 1:

After signing in you'll be able to get the token:

final String token = GoogleAuthUtil.getToken(mAppContext, mAccountName, AUTH_TOKEN_TYPE);

dont forget to do it an Asynctask. for more detail have a look at here

EDIT:

Note that, despite the method name:

GoogleAuthUtil.getToken()

it does not give you an OAuth Token, it rather returns a "short‑lived authorization code" according to the documentation.

What I should do after getting the Authorization Code by calling the GoogleAuthUtil.getToken() ?

You should transmit the Authorization Code to your backend server over HTTPS. Only from your server you should attempt to receive Access and/or Refresh token, not in your app.

方法 2:

So i was having the same problem. they have changed it now so the token comes through in

GoogleSignInAccount acct = result.getSignInAccount();
Log.d(TAG, "handleSignInResult2: "+acct.getIdToken());

To get access too this token you have too ask for it in

GoogleSignInOptions gso = new GoogleSignInOptions.Builder(GoogleSignInOptions.DEFAULT_SIGN_IN)
            .requestEmail().requestProfile().requestId().requestIdToken(getString(R.string.server_client_ID))
                    .build();

The R.string.server_client_ID is the client ID from the project that you make in your Google developer Console.

I hope this helps you.

here is also the documentation i followed. https://developers.google.com/identity/sign‑in/android/backend‑auth

(by Bootstrapper、abedfar、pjapple15)

參考文件

1. Google login get access token with new GoogleSignInOptions (CC BY‑SA 2.5/3.0/4.0)