javascript - 获取 facebook 应用安装时间戳

Question

如何仅在当前使用的 facebook 应用程序的安装时间中使用 JS api？

一般来说，我想验证当前在线的用户是新用户，而不是尚未注册的返回用户。

Answer 1

您可以按照这里FB.getLoginStatus的推荐使用它可以告诉您天气访问者是否已登录 facebook，如果是，他们是否已在您的应用程序中注册。

FB.getLoginStatus(function(response) {
  if (response.status === 'connected') {
    // the user is logged in and has authenticated your
    // app, and response.authResponse supplies
    // the user's ID, a valid access token, a signed
    // request, and the time the access token 
    // and signed request each expire
    var uid = response.authResponse.userID;
    var accessToken = response.authResponse.accessToken;
  } else if (response.status === 'not_authorized') {
    // the user is logged in to Facebook, 
    // but has not authenticated your app
  } else {
    // the user isn't logged in to Facebook.
  }
 });