获取用户数据Gmail API - JS

Question

我正在尝试对用户进行身份验证并获取名称和电子邮件等用户数据。我正在关注google的文档。这是我的身份验证代码：

function handleClientLoad() {
    gapi.load('client:auth2', initClient);
}

function initClient() {

// Array of API discovery doc URLs for APIs used by the quickstart
var DISCOVERY_DOCS = 
["https://www.googleapis.com/discovery/v1/apis/gmail/v1/rest"];

// Authorization scopes required by the API; multiple scopes can be
// included, separated by spaces.
var SCOPES = 'https://www.googleapis.com/auth/gmail.readonly';

    gapi.client.init({
        apiKey: API_KEY,
        clientId: CLIENT_ID,
        discoveryDocs: DISCOVERY_DOCS,
        scope: SCOPES
    }).then(function (data) {
    }, function(error) {
    });
}

当用户单击按钮时：

    if(!gapi.auth2.getAuthInstance().isSignedIn.get()){
        gapi.auth2.getAuthInstance().signIn();
    }

// user IS authenticated here
    var profile = gapi.auth2.getAuthInstance().currentUser.get();
    console.log('Email: ' + profile.getEmail());

当我console.log(gapi.auth2)，我看到我有功能BasicProfile()，但如果我使用gapi.auth2.BasicProfile().getEmail()我收到此错误：

cb = gapi.loaded_0：219 Uncaught TypeError：无法在Object.PG [as BasicProfile]中读取null的属性'sub'（cb = gapi.loaded_0：219）

Answer 1

一个解决方案

// The user is authenticated here
    gapi.client.gmail.users.getProfile({
        'userId': 'me'
    }).then(function(response) {
       console.log(response);
    });