谷歌javascript登录api：没有离线访问 [英] Google javascript sign-in api: no offline access

问题描述

我试图为Google服务器端应用实施Google Sign-In，如Google文档所示： Google登录服务器端应用程序，但同意窗口从不要求脱机访问。选择一个用户后，它会关闭并调用登录处理函数。

因此，当我得到一次性代码并将它发送到服务器时，我不能将它换为刷新令牌，仅用于访问和id令牌。

这是我的客户端代码：

在HTML文件中：

 < script src =https ：//apis.google.com/js/platform.js？onload = initasync defer>< / script> 
  

Javascript代码：

  var auth2; 
函数init（）{
 gapi.load（'auth2'，function（）{
 auth2 = gapi.auth2.init（{
 client_id：'< my client id> ; .apps.googleusercontent.com'，
范围：'https://www.google.com/m8/feeds https://www.googleapis.com/auth/drive https：//www.googleapis。 com / auth / drive.appfolder'
}）; 
}）; 
 $（'＃signinButton'）。click（function（）{
 auth2.grantOfflineAccess（{'redirect_uri'：'postmessage'}）。then（onSignIn）; 
}）; 
} 
 
函数onSignIn（authResult）{
 if（authResult ['code']）{
 //发送代码到服务器
} 
 
 $ / code> 

Google控制台中的项目包含一个带有相关javascript来源的Web客户端凭证，



我应该如何处理迫使同意窗口要求离线访问？

通过添加参数'approval_prompt'：'force'到 auth2.grantOfflineAccess 函数调用。

例如

auth2.grantOfflineAccess（{'redirect_uri'：'postmessage'，'approval_prompt'：'force'}）。then（onSignIn）;

I'm trying to implement Google Sign-In for server-side apps as shown in Google documentation: Google Sign-In for server-side apps, but the consent window never asks for offline access. After selecting a user it just closes and calls the sign in handler function.

As a result, when I get the one time code and send it to the server, I cannot exchange it for a refresh token, only for access and id tokens.

Here is my client code:

In the HTML file:

<script src="https://apis.google.com/js/platform.js?onload=init" async defer></script>

Javascript code:

var auth2;
function init() {
    gapi.load('auth2', function() {
        auth2 = gapi.auth2.init({
            client_id: '<my client id>.apps.googleusercontent.com',
            scope: 'https://www.google.com/m8/feeds https://www.googleapis.com/auth/drive https://www.googleapis.com/auth/drive.appfolder'
        });
    });
    $('#signinButton').click(function() {
        auth2.grantOfflineAccess({'redirect_uri': 'postmessage'}).then(onSignIn);
    });
}

function onSignIn(authResult) {
    if (authResult['code']) {
    // Send the code to the server
    }
}

The project in Google console contains a web client credential with the relevant javascript origins and no Authorized redirect URIs.

What should I do to force the consent window to ask for offline access?

解决方案

I'm able to force the prompt for offline, by adding the param 'approval_prompt' : 'force' to auth2.grantOfflineAccess function call.

E.g.

auth2.grantOfflineAccess({'redirect_uri' : 'postmessage', 'approval_prompt' : 'force'}).then(onSignIn);

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