目的是使用 YouTube API 创建收藏夹/赞按钮。当用户单击该按钮时，视频将保存到用户的收藏夹/喜欢的播放列表中。
就像您在自己的网站上实现 Facebook 赞按钮时的工作原理一样。
这本质上是对 Bertrand Martel 发布的出色解决方案的后续问题在我之前的 question我们旨在将视频添加到“稍后观看”播放列表。
这个特定函数的工作代码是:
<!-- button 1 -->
<button type="submit" data-youtube-video-id="EH3gqI2NAiE" value="Watch Later" class="ma_youtube_watch_later" name="send">
<div class="ma_youtube_watch_later_text">Watch Later</div>
</button>
<!-- button 2 -->
<button type="submit" data-youtube-video-id="0EMmKIIF-zE" value="Watch Later" class="ma_youtube_watch_later" name="send">
<div class="ma_youtube_watch_later_text">Watch Later</div>
</button>
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.8.2/jquery.min.js"></script>
<script>
// By Bertrand Martel: https://stackoverflow.com/a/42561941/1649673
var OAUTH2_CLIENT_ID = '28993181493-c9o6hdll3di0ssvebfd4atf13edqfu9g.apps.googleusercontent.com';
var OAUTH2_SCOPES = [
'https://www.googleapis.com/auth/youtube'
];
var init = false;
var youtube_video_id = '';
var button = null;
googleApiClientReady = function() {
gapi.auth.init(function() {
window.setTimeout(checkAuth, 1);
});
}
function checkAuth() {
gapi.auth.authorize({
client_id: OAUTH2_CLIENT_ID,
scope: OAUTH2_SCOPES,
immediate: true
}, handleAuthResult);
}
// Handle the result of a gapi.auth.authorize() call.
function handleAuthResult(authResult) {
jQuery('.ma_youtube_watch_later').off('click');
jQuery('.ma_youtube_watch_later').click(function(e) {
button = this;
var youtube_video_id = jQuery(this).attr("data-youtube-video-id");
// Add a video ID specified in the form to the playlist.
function addVideoToPlaylist() {
//addToPlaylist(jQuery('#video-id').val());
addToPlaylist(youtube_video_id);
}
if (authResult && !authResult.error) {
addVideoToPlaylist();
} else {
init = true;
gapi.auth.authorize({
client_id: OAUTH2_CLIENT_ID,
scope: OAUTH2_SCOPES,
immediate: false
}, handleAuthResult);
}
return false;
});
if (authResult && !authResult.error) {
// Authorization was successful. Hide authorization prompts and show
// content that should be visible after authorization succeeds.
jQuery('.pre-auth').hide();
jQuery('.post-auth').show();
loadAPIClientInterfaces();
jQuery('#add_to_wl').click(function(e) {
button = this;
addVideoToPlaylist(self);
});
}
}
function loadAPIClientInterfaces() {
gapi.client.load('youtube', 'v3', function() {
if (init) {
init = false;
addVideoToPlaylist();
}
});
}
// Add a video to a playlist. The "startPos" and "endPos" values let you
// start and stop the video at specific times when the video is played as
// part of the playlist. However, these values are not set in this example.
function addToPlaylist(id, startPos, endPos) {
var details = {
videoId: id,
kind: 'youtube#video'
}
if (startPos != undefined) {
details['startAt'] = startPos;
}
if (endPos != undefined) {
details['endAt'] = endPos;
}
var request = gapi.client.youtube.playlistItems.insert({
part: 'snippet',
resource: {
snippet: {
playlistId: "WL",
resourceId: details
}
}
});
request.execute(function(response) {
console.log(response);
if (!response.code) {
//jQuery('#status').html('<pre>Succesfully added the video : ' + JSON.stringify(response.result) + '</pre>');
// change button text
$(button).text('Video added');
} else if (response.code == 409) {
//jQuery('#status').html('<p>Conflict : this video is already on your Watch Later playlist</p>');
// change button text
$(button).text('Already added');
} else if (response.code == 404) {
//jQuery('#status').html('<p>Not Found : this video hasnt been found</p>');
// change button text
$(button).text('Video not found');
} else {
//jQuery('#status').html('<p>Error : code ' + response.code + '</p>');
// change button text
$(button).text('Error: Try again');
}
});
}
</script>
<script src="https://apis.google.com/js/client.js?onload=googleApiClientReady"></script>
我们有很多 PHP code samples在 API 文档上。我们还有一些关于 adding a video to playlist 的文档.
这如何使用 PHP 或/和 javascript 实现？
最佳答案
您可以使用以下参数(检查 this sample request)通过 channel 列表端点找到喜欢和收藏的播放列表 ID:
{
mine: true,
part: 'contentDetails'
}
您将在 relatedPlaylists 中获得播放列表列表，包括 likes、favorites、uploads、稍后观看和观看历史记录。
{
"kind": "youtube#channelListResponse",
"etag": "\"m2yskBQFythfE4irbTIeOgYYfBU/S1x68O9aSpvmndklrnSwKw_yYdE\"",
"pageInfo": {
"totalResults": 1,
"resultsPerPage": 1
},
"items": [{
"kind": "youtube#channel",
"etag": "\"m2yskBQFythfE4irbTIeOgYYfBU/ura_vsrPt5tCZkjjGbH3ihN3Bq4\"",
"id": "UCnQt5EmYRfX1uVYtwPNj7Dg",
"contentDetails": {
"relatedPlaylists": {
"likes": "LLnQt5EmYRfX1uVYtwPNj7Dg",
"favorites": "FLnQt5EmYRfX1uVYtwPNj7Dg",
"uploads": "UUnQt5EmYRfX1uVYtwPNj7Dg",
"watchHistory": "HL",
"watchLater": "WL"
}
}
}]
}
对于 WatchLater 和 WatchHistory，playlistId 对所有用户(分别是 WL 和 HL)都是相同的
您可以使用 gapi.client.youtube.channels.list 在 Javascript 中调用 channel 列表端点，就像调用播放列表插入 API 一样。
然后使用 playlistId，您可以将视频插入到另一个播放列表而不是稍后观看。
在下面的代码中，您会发现 3 个按钮，用于将不同的视频添加到 Watch Later 播放列表、Like 播放列表和 Favorite 播放列表
Javascript
Here是 source code 的现场演示(如下)
Here是一个 fiddle 。替换您的客户端 ID 并在开发人员控制台中添加为授权的 JavaScript 来源:https://fiddle.jshell.net
<!doctype html>
<html>
<head>
<title>Add to multiple playlists</title>
</head>
<body>
<input type="submit" data-youtube-video-id="EH3gqI2NAiE" data-type="WL" value="Add to Watch Later playlist" class="yt_add_to_playlist" />
<input type="submit" data-youtube-video-id="0EMmKIIF-z" data-type="likes" value="Add to Like playlist" class="yt_add_to_playlist" />
<input type="submit" data-youtube-video-id="T4ZE2KtoFzs" data-type="favorites" value="Add to Favorite playlist" class="yt_add_to_playlist" />
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.8.2/jquery.min.js"></script>
<script>
var OAUTH2_CLIENT_ID = '28993181493-c9o6hdll3di0ssvebfd4atf13edqfu9g.apps.googleusercontent.com';
var OAUTH2_SCOPES = [
'https://www.googleapis.com/auth/youtube'
];
var init = false;
var button = null;
googleApiClientReady = function() {
gapi.auth.init(function() {
window.setTimeout(checkAuth, 1);
});
}
function checkAuth() {
gapi.auth.authorize({
client_id: OAUTH2_CLIENT_ID,
scope: OAUTH2_SCOPES,
immediate: true
}, handleAuthResult);
}
// Handle the result of a gapi.auth.authorize() call.
function handleAuthResult(authResult) {
jQuery('.yt_add_to_playlist').off('click');
jQuery('.yt_add_to_playlist').click(function(e) {
button = this;
if (authResult && !authResult.error) {
addToPlaylist($(this).attr("data-youtube-video-id"), $(this).attr("data-type"));
} else {
init = true;
gapi.auth.authorize({
client_id: OAUTH2_CLIENT_ID,
scope: OAUTH2_SCOPES,
immediate: false
}, handleAuthResult);
}
return false;
});
if (authResult && !authResult.error) {
// Authorization was successful. Hide authorization prompts and show
// content that should be visible after authorization succeeds.
jQuery('.pre-auth').hide();
jQuery('.post-auth').show();
loadAPIClientInterfaces();
jQuery('#add_to_wl').click(function(e) {
button = this;
addToPlaylist($(this).attr("data-youtube-video-id"), $(this).attr("data-type"));
});
}
}
function loadAPIClientInterfaces() {
gapi.client.load('youtube', 'v3', function() {
if (init) {
init = false;
addToPlaylist($(button).attr("data-youtube-video-id"), $(button).attr("data-type"));
}
});
}
function addToPlaylist(videoId, playlistType) {
console.log("add to playlist type : " + playlistType);
if (playlistType != "WL" && playlistType != "HL") {
var request = gapi.client.youtube.channels.list({
mine: true,
part: 'contentDetails'
});
request.execute(function(response) {
var playlistId = response.result.items[0].contentDetails.relatedPlaylists[playlistType];
if (typeof playlistId != 'undefined') {
console.log("found playlist id : " + playlistId);
insertToPlaylist(videoId, playlistId);
} else {
console.log("playlist not found");
}
});
} else {
insertToPlaylist(videoId, playlistType);
}
}
function insertToPlaylist(videoId, playlistId) {
var details = {
videoId: videoId,
kind: 'youtube#video'
};
var request = gapi.client.youtube.playlistItems.insert({
part: 'snippet',
resource: {
snippet: {
playlistId: playlistId,
resourceId: details
}
}
});
request.execute(function(response) {
console.log(response);
if (!response.code) {
$(button).val('Video added');
} else if (response.code == 409) {
$(button).val('Already added');
} else if (response.code == 404) {
$(button).val('Video not found');
} else {
$(button).val('Error: Try again');
}
});
}
</script>
<script src="https://apis.google.com/js/client.js?onload=googleApiClientReady"></script>
</body>
</html>
将 OAUTH2_CLIENT_ID 替换为您自己的客户端 ID
在 API 响应中，会检查状态代码以防找不到视频 (404)。如果视频已经在播放列表中，则返回 409 状态代码，但仅用于稍后观看播放列表(将现有视频添加到喜欢/收藏的播放列表不会改变任何内容)
PHP
同上，基于google-api php sample :
- 安装 Composer :参见instructions
安装 google-api 客户端:
composer require google/apiclient:~2.0
php脚本multi-playlist.php :
<?php
/**
* Library Requirements
*
* 1. Install composer (https://getcomposer.org)
* 2. On the command line, change to this directory (api-samples/php)
* 3. Require the google/apiclient library
* $ composer require google/apiclient:~2.0
*/
if (!file_exists(__DIR__ . '/vendor/autoload.php')) {
throw new \Exception('please run "composer require google/apiclient:~2.0" in "' . __DIR__ .'"');
}
require_once __DIR__ . '/vendor/autoload.php';
session_start();
$response = "";
/*
* You can acquire an OAuth 2.0 client ID and client secret from the
* {{ Google Cloud Console }} <{{ https://cloud.google.com/console }}>
* For more information about using OAuth 2.0 to access Google APIs, please see:
* <https://developers.google.com/youtube/v3/guides/authentication>
* Please ensure that you have enabled the YouTube Data API for your project.
*/
$OAUTH2_CLIENT_ID = 'YOUR_CLIENT_ID';
$OAUTH2_CLIENT_SECRET = 'YOUR_CLIENT_SECRET';
$client = new Google_Client();
$client->setClientId($OAUTH2_CLIENT_ID);
$client->setClientSecret($OAUTH2_CLIENT_SECRET);
$client->setScopes('https://www.googleapis.com/auth/youtube');
$redirect = filter_var('http://' . $_SERVER['HTTP_HOST'] . $_SERVER['PHP_SELF'],
FILTER_SANITIZE_URL);
$client->setRedirectUri($redirect);
// Define an object that will be used to make all API requests.
$youtube = new Google_Service_YouTube($client);
// Check if an auth token exists for the required scopes
$tokenSessionKey = 'token-' . $client->prepareScopes();
if (isset($_GET['code'])) {
if (strval($_SESSION['state']) !== strval($_GET['state'])) {
die('The session state did not match.');
}
$client->authenticate($_GET['code']);
$_SESSION[$tokenSessionKey] = $client->getAccessToken();
header('Location: ' . $redirect);
}
if (isset($_SESSION[$tokenSessionKey])) {
$client->setAccessToken($_SESSION[$tokenSessionKey]);
}
// Check to ensure that the access token was successfully acquired.
if ($client->getAccessToken()) {
try {
$videoId = "";
if (isset($_GET['video'])){
$videoId = $_GET['video'];
}
else if(isset($_SESSION['video'])){
$videoId = $_SESSION['video'];
}
if (isset($_GET['action'])){
$action = $_GET['action'];
}
else if(isset($_SESSION['action'])){
$action = $_SESSION['action'];
}
if(isset($videoId) && isset($action) && !isset($_GET['state'])) {
file_put_contents('php://stderr', print_r("adding video to watch later playlist " . $videoId . "\n", TRUE));
if ($action == "Add to Watch Later playlist") {
$playlistId = "WL";
}
else {
$listResponse = $youtube->channels->listChannels("contentDetails", array(
'mine' => true
));
if (!empty($listResponse)) {
if ($action == "Add to Like playlist"){
$playlistId = $listResponse['items'][0]['contentDetails']['relatedPlaylists']['likes'];
}
else if ($action == "Add to Favorite playlist"){
$playlistId = $listResponse['items'][0]['contentDetails']['relatedPlaylists']['favorites'];
}
}
}
if (isset($playlistId)){
// 5. Add a video to the playlist. First, define the resource being added
// to the playlist by setting its video ID and kind.
$resourceId = new Google_Service_YouTube_ResourceId();
$resourceId->setVideoId($videoId);
$resourceId->setKind('youtube#video');
// Then define a snippet for the playlist item. Set the playlist item's
// title if you want to display a different value than the title of the
// video being added. Add the resource ID and the playlist ID retrieved
// in step 4 to the snippet as well.
$playlistItemSnippet = new Google_Service_YouTube_PlaylistItemSnippet();
$playlistItemSnippet->setTitle('First video in the test playlist');
$playlistItemSnippet->setPlaylistId($playlistId);
$playlistItemSnippet->setResourceId($resourceId);
// Finally, create a playlistItem resource and add the snippet to the
// resource, then call the playlistItems.insert method to add the playlist
// item.
$playlistItem = new Google_Service_YouTube_PlaylistItem();
$playlistItem->setSnippet($playlistItemSnippet);
$playlistItemResponse = $youtube->playlistItems->insert(
'snippet,contentDetails', $playlistItem, array());
$response = json_encode($playlistItem);
}
else{
$response = "no playlist selected";
}
$_SESSION['video'] = "";
$_SESSION["action"] = "";
}
else{
file_put_contents('php://stderr', print_r("no video was specified", TRUE));
}
} catch (Google_Service_Exception $e) {
$response = htmlspecialchars($e->getMessage());
} catch (Google_Exception $e) {
$response = htmlspecialchars($e->getMessage());
}
$_SESSION[$tokenSessionKey] = $client->getAccessToken();
} else {
if(isset($_GET['video'])){
$_SESSION["video"] = $_GET['video'];
$_SESSION["action"] = $_GET['action'];
// If the user hasn't authorized the app, initiate the OAuth flow
$state = mt_rand();
$client->setState($state);
$_SESSION['state'] = $state;
$authUrl = $client->createAuthUrl();
header('Location: ' . $authUrl);
}
}
?>
<!doctype html>
<html>
<head>
<title>Add to playlists</title>
</head>
<body>
<div>
<form id="form" action="multi-playlist.php"">
<input type="hidden" name="video" value="EH3gqI2NAiE">
<input name="action" type="submit" value="Add to Watch Later playlist" />
<input name="action" type="submit" value="Add to Like playlist" />
<input name="action" type="submit" value="Add to Favorite playlist" />
</form>
<div>
<?php echo $response ?>
</div>
</div>
</body>
</html>
对于这个 PHP 版本，注意除了当前 session $_SESSION["video"] 中的视频 id 外，目标 Action 也存储在 $_SESSION["action "] 以便能够确定要使用的播放列表。使用 $youtube->channels->listChannels 的 channel 列表端点检索播放列表。
请注意，视频出现在播放列表中可能需要一些时间(有时需要几秒钟)
关于javascript - 将视频添加到 YouTube 上用户的收藏夹/喜欢的播放列表，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/43229335/