我试图使用他们的新API:https://developers.google.com/identity/sign-in/web/实现google登录
签到和签出都很好。我的问题是,没有服务器端,我不知道如何管理其他页面上的会话。
所以我尝试了这个代码- https://developers.google.com/identity/sign-in/web/session-state
对我来说也不太好。我不想让谷歌登录按钮在每一页。如果我删除了“auth2.attachClickHandler.”部分代码不起作用。
我所要做的就是在其他页面中(而不是在带有google按钮的页面中)显示用户是否仍在连接。你能帮帮我吗?
编辑:我尝试了答案中建议的以下代码,但我得到了一个错误:“未定义的TypeError:无法读取未定义的属性'init‘”
代码:
var auth2 = gapi.auth2.init({
client_id : 'ID.apps.googleusercontent.com'
});
auth2.then(function() {
var isSignedIn = auth2.isSignedIn.get();
var currentUser = auth2.currentUser.get();
if (isSignedIn) {
    console.log("signed in");
    // User is signed in.
    // Pass currentUser to onSignIn callback.
 } else {
    console.log("NOT signed in");
    // User is not signed in.
    // call auth2.attachClickHandler
    // or even better call gapi.signin2.render
    }
}); 发布于 2015-06-30 22:13:29
您可以在所有页面上加载gapi.auth2并调用:
var auth2 = gapi.auth2.init(...);
auth2.then(function() {
  var isSignedIn = auth2.isSignedIn.get();
  var currentUser = auth2.currentUser.get();
  if (isSignedIn) {
    // User is signed in.
    // Pass currentUser to onSignIn callback.
  } else {
    // User is not signed in.
    // call auth2.attachClickHandler
    // or even better call gapi.signin2.render
  }
});在此解决方案中,只有当用户未登录时才显示“登录”按钮。
https://stackoverflow.com/questions/31074986
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