新GoogleSignInOptions谷歌登录获取访问令牌 [英] Google login get access token with new GoogleSignInOptions

问题描述

我的Andr​​oid应用目前使用的GoogleAuthUtil来签到的用户，并获取了的access_token 被传递到后端（低于code代码展示了创建GoogleApiClient和使用GoogleAuthUtil获得令牌）。

My android app currently uses the GoogleAuthUtil to signin users and fetch an access_token which is passed to the backend (code snippets below which show creating the GoogleApiClient and using GoogleAuthUtil to get the token).

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");

然后我发送给后端

which I then sent to the backend

我现在正在试图移动到新的谷歌登入 - 的https： //developers.google.com/identity/sign-in/android/sign-in

I am now trying to move to the new Google SignIn - https://developers.google.com/identity/sign-in/android/sign-in

和改变，以便创造GoogleApiClient一样，

and so changed the GoogleApiClient creation like,

GoogleSignInOptions gso = new GoogleSignInOptions.Builder(GoogleSignInOptions.DEFAULT_SIGN_IN)
        .requestEmail()
        .requestIdToken("<web client id>")
        .build();
mGoogleApiClient = new GoogleApiClient.Builder(this)
        .enableAutoManage(this, this)
        .addApi(Auth.GOOGLE_SIGN_IN_API, gso)
        .build();

，然后做登录使用，

and then to do the login use,

startActivityForResult(Auth.GoogleSignInApi.getSignInIntent(mGoogleApiClient), RC_GET_TOKEN);

和对活动结果的使用（类似于上面的链接的例子），

and on activity result use (similar to the example in the link above),

OptionalPendingResult<GoogleSignInResult> opr = Auth.GoogleSignInApi.silentSignIn(mGoogleApiClient);
if (opr.isDone()) {
    // If the user's cached credentials are valid, the OptionalPendingResult will be "done"
    // and the GoogleSignInResult will be available instantly.
    Log.d(TAG, "Got cached sign-in");
    handleSignInResult(opr.get());
} else {
    // If the user has not previously signed in on this device or the sign-in has expired,
    // this asynchronous branch will attempt to sign in the user silently.  Cross-device
    // single sign-on will occur in this branch.
    showProgress();
    opr.setResultCallback(new ResultCallback<GoogleSignInResult>() {
        @Override
        public void onResult(GoogleSignInResult googleSignInResult) {
            hideProgress();
            handleSignInResult(googleSignInResult);
        }
    });
}

但现在看来，在 handleSingInResult（GoogleSignInResult结果）我只能得到一个 ID令牌回来
result.getSignInAccount（）getIdToken（）;

有谁知道是否有可能从该得到一个访问令牌（如previously），如果又如何？任何帮助AP preciated。

Does anyone know if it is possible to get an access token from this (like previously) and if so how? Any help appreciated.

推荐答案

在你签约之后就可以得到令牌：

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

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

不要忘了做一个AsyncTask的。对于更详细的看一下<一个href=\"https://github.com/google/iosched/blob/2531cbdbe27e5795eb78bf47d27e8c1be494aad4/android/src/main/java/com/google/samples/apps/iosched/util/LoginAndAuthHelper.java\"相对=nofollow>这里

编辑：

请注意的是，尽管该方法的名称：

Note that, despite the method name:

GoogleAuthUtil.getToken()

它不会给你一个OAuth令牌，它，而返回根据的文档。

通过调用获得授权code后，我应该做什么
  GoogleAuthUtil.getToken（）？

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

您应该传送授权code通过HTTPS后端服务器。只有从你的服务器，你应该尝试接受访问和/或刷新令牌，而不是在您的应用程序。

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.

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