谷歌驱动器的JavaScript API(Google Drive API javascript)

我试图使用谷歌驱动器列出文件。

在使用答案https://stackoverflow.com/a/11280257我发现我无法找出原因的问题。

var clientId = '*********.apps.googleusercontent.com';
var apiKey = '##########';
var scopes = 'https://www.googleapis.com/auth/drive';


function handleClientLoad() {
    gapi.client.setApiKey(apiKey);
    window.setTimeout(checkAuth,1);
}

function checkAuth() {
    gapi.auth.authorize({client_id: clientId, scope: scopes, immediate: true},handleAuthResult);
}

function handleAuthResult(authResult) {
    var authorizeButton = document.getElementById('authorize-button');

    if (authResult && !authResult.error) {
        authorizeButton.style.visibility = 'hidden';
        makeApiCall();
    }  
    else {
        authorizeButton.style.visibility = '';
        authorizeButton.onclick = handleAuthClick;
    }
}

function handleAuthClick(event) {
    gapi.auth.authorize({client_id: clientId, scope: [scopes], immediate: false}, handleAuthResult);
    return false;
}

function makeApiCall() {  
    gapi.client.load('drive', 'v2', makeRequest);   
}

function makeRequest()
{
    var request = gapi.client.drive.files.list({'maxResults': 5 });

    request.execute(function(resp) {          
        for (i=0; i<resp.items.length; i++) {
            var titulo = resp.items[i].title;
            var fechaUpd = resp.items[i].modifiedDate;
            var userUpd = resp.items[i].lastModifyingUserName;
            var userEmbed = resp.items[i].embedLink;
            var userAltLink = resp.items[i].alternateLink;

            var fileInfo = document.createElement('li');
            fileInfo.appendChild(document.createTextNode('TITLE: ' + titulo + ' - LAST MODIF: ' + fechaUpd + ' - BY: ' + userUpd ));                
            document.getElementById('content').appendChild(fileInfo);
        }
    });    
}

我有这样的错误：

Uncaught TypeError: Cannot read property 'files' of undefined 

在线路

var request = gapi.client.drive.files.list({'maxResults': 5 });

Answer 1:

运用

var request = gapi.client.request({
        'path': '/drive/v2/files',
        'method': 'GET',
        'params': {'maxResults': '1'}
        });

代替

var request = gapi.client.drive.files.list({'maxResults': 5 });

解决了这个问题！

Answer 2:

代码看起来OK，你就正确地等到gapi.client.load完成。 可能只是与加载驱动器JS文件或其他一些问题上的错误（可能是错误的JS文件缓存？）。 我修改你的例子一点点地在运行的jsfiddle，看看http://jsfiddle.net/Rbg44/4/为完整的例子：

HTML：

<button id="authorize-button">Authorize</button>
<div id="content">Files:</div>

JS：

var CLIENT_ID = '...';
var API_KEY = '...';
var SCOPES = '...';

function handleClientLoad() {
    gapi.client.setApiKey(API_KEY);
    window.setTimeout(checkAuth,1);
}

function checkAuth() {
    var options = {
        client_id: CLIENT_ID,
        scope: SCOPES,
        immediate: true
    };
    gapi.auth.authorize(options, handleAuthResult);
}

function handleAuthResult(authResult) {
    var authorizeButton = document.getElementById('authorize-button');

    if (authResult && !authResult.error) {
        authorizeButton.style.visibility = 'hidden';
        makeApiCall();
    } else {
        authorizeButton.style.visibility = '';
        authorizeButton.onclick = handleAuthClick;
    }
}

function handleAuthClick(event) {
    var options = {
        client_id: CLIENT_ID,
        scope: SCOPES,
        immediate: false
    };
    gapi.auth.authorize(options, handleAuthResult);
    return false;
}

function makeApiCall() {  
    gapi.client.load('drive', 'v2', makeRequest);   
}

function makeRequest() {
    var request = gapi.client.drive.files.list({'maxResults': 5 });
    request.execute(function(resp) {          
        for (i=0; i<resp.items.length; i++) {
            var titulo = resp.items[i].title;
            var fechaUpd = resp.items[i].modifiedDate;
            var userUpd = resp.items[i].lastModifyingUserName;
            var userEmbed = resp.items[i].embedLink;
            var userAltLink = resp.items[i].alternateLink;

            var fileInfo = document.createElement('li');
            fileInfo.appendChild(document.createTextNode('TITLE: ' + titulo + 
                ' - LAST MODIF: ' + fechaUpd + ' - BY: ' + userUpd ));                
            document.getElementById('content').appendChild(fileInfo);
        }
    });    
}

$(document).ready(function() {
  $('#authorize-button').on('click', handleAuthClick);
  $.getScript('//apis.google.com/js/api.js', function() {
    gapi.load('auth:client', handleClientLoad);
  });
});

您可以检查您的浏览器开发工具，如果有（）任何形式的请求发出的，当你调用gapi.client.load做？

Answer 3:

你需要这样写：

gapi.client.load('drive', 'v2', null);  

文章来源: Google Drive API javascript