Getting Started... Youtube API via Javascript to give most recent upload
video, title and description
After some wise input from jlmcdonald, I re-wrote this post
The end goal is to do some fun stuff with the YouTube API. Today's goal is
to just get it to work.
I did the youtube dev java-scrip API tutorial here:
https://developers.google.com/youtube/v3/code_samples/javascript#my_uploads
But instead of separate documents, I did one large one and adjusted the
script tags as needed.
Could not get it to work.... Ideas?
Here's a pic of my API codes from Google (if needed) http://d.pr/i/Ybcx
<!doctype html>
<html>
<head>
<title>My Uploads</title>
<link rel="stylesheet" href="my_uploads.css" />
<style>
.paging-button {
visibility: hidden;
}
.video-content {
width: 200px;
height: 200px;
background-position: center;
background-repeat: no-repeat;
float: left;
position: relative;
margin: 5px;
}
.video-title {
width: 100%;
text-align: center;
background-color: rgba(0, 0, 0, .5);
color: white;
top: 50%;
left: 50%;
position: absolute;
-moz-transform: translate(-50%, -50%);
-webkit-transform: translate(-50%, -50%);
transform: translate(-50%, -50%);
}
.video-content:nth-child(3n+1) {
clear: both;
}
.button-container {
clear: both;
}
</style>
<script>
//This is the Authorization by Client ID http://d.pr/i/mEmY
// The client id is obtained from the Google APIs Console at
https://code.google.com/apis/console
// If you run access this code from a server other than
http://localhost, you need to register
// your own client id.
var OAUTH2_CLIENT_ID = '367567738093.apps.googleusercontent.com';
var OAUTH2_SCOPES = [
'https://www.googleapis.com/auth/youtube'
];
// This callback is invoked by the Google APIs JS client
automatically when it is loaded.
googleApiClientReady = function() {
gapi.auth.init(function() {
window.setTimeout(checkAuth, 1);
});
}
// Attempt the immediate OAuth 2 client flow as soon as the page
is loaded.
// If the currently logged in Google Account has previously
authorized OAUTH2_CLIENT_ID, then
// it will succeed with no user intervention. Otherwise, it will
fail and the user interface
// to prompt for authorization needs to be displayed.
function checkAuth() {
gapi.auth.authorize({
client_id: OAUTH2_CLIENT_ID,
scope: OAUTH2_SCOPES,
immediate: true
}, handleAuthResult);
}
// Handles the result of a gapi.auth.authorize() call.
function handleAuthResult(authResult) {
if (authResult) {
// Auth was successful; hide the things related to prompting
for auth and show the things
// that should be visible after auth succeeds.
$('.pre-auth').hide();
loadAPIClientInterfaces();
} else {
// Make the #login-link clickable, and attempt a non-immediate
OAuth 2 client flow.
// The current function will be called when that flow is
complete.
$('#login-link').click(function() {
gapi.auth.authorize({
client_id: OAUTH2_CLIENT_ID,
scope: OAUTH2_SCOPES,
immediate: false
}, handleAuthResult);
});
}
}
// Loads the client interface for the YouTube Analytics and Data
APIs.
// This is required before using the Google APIs JS client; more
info is available at
//
http://code.google.com/p/google-api-javascript-client/wiki/GettingStarted#Loading_the_Client
function loadAPIClientInterfaces() {
gapi.client.load('youtube', 'v3', function() {
handleAPILoaded();
});
}
//This is the uploads script
// Some variables to remember state.
var playlistId, nextPageToken, prevPageToken;
// Once the api loads call a function to get the uploads playlist id.
function handleAPILoaded() {
requestUserUploadsPlaylistId();
}
//Retrieve the uploads playlist id.
function requestUserUploadsPlaylistId() {
// https://developers.google.com/youtube/v3/docs/channels/list
var request = gapi.client.youtube.channels.list({
// mine: '' indicates that we want to retrieve the channel for
the authenticated user.
mine: '',
part: 'contentDetails'
});
request.execute(function(response) {
playlistId = response.result.items[0].contentDetails.uploads;
requestVideoPlaylist(playlistId);
});
}
// Retrieve a playist of videos.
function requestVideoPlaylist(playlistId, pageToken) {
$('#video-container').html('');
var requestOptions = {
playlistId: playlistId,
part: 'snippet',
maxResults: 9
};
if (pageToken) {
requestOptions.pageToken = pageToken;
}
var request = gapi.client.youtube.playlistItems.list(requestOptions);
request.execute(function(response) {
// Only show the page buttons if there's a next or previous page.
nextPageToken = response.result.nextPageToken;
var nextVis = nextPageToken ? 'visible' : 'hidden';
$('#next-button').css('visibility', nextVis);
prevPageToken = response.result.prevPageToken
var prevVis = prevPageToken ? 'visible' : 'hidden';
$('#prev-button').css('visibility', prevVis);
var playlistItems = response.result.items;
if (playlistItems) {
// For each result lets show a thumbnail.
jQuery.each(playlistItems, function(index, item) {
createDisplayThumbnail(item.snippet);
});
} else {
$('#video-container').html('Sorry you have no uploaded videos');
}
});
}
// Create a thumbnail for a video snippet.
function createDisplayThumbnail(videoSnippet) {
var titleEl = $('<h3>');
titleEl.addClass('video-title');
$(titleEl).html(videoSnippet.title);
var thumbnailUrl = videoSnippet.thumbnails.medium.url;
var div = $('<div>');
div.addClass('video-content');
div.css('backgroundImage', 'url("' + thumbnailUrl + '")');
div.append(titleEl);
$('#video-container').append(div);
}
// Retrieve the next page of videos.
function nextPage() {
requestVideoPlaylist(playlistId, nextPageToken);
}
// Retrieve the previous page of videos.
function previousPage() {
requestVideoPlaylist(playlistId, prevPageToken);
}
</script>
</head>
<body>
<div id="login-container" class="pre-auth">This application requires
access to your YouTube account.
Please <a href="#" id="login-link">authorize</a> to continue.
</div>
<div id="video-container">
</div>
<div class="button-container">
<button id="prev-button" class="paging-button"
onclick="previousPage();">Previous Page</button>
<button id="next-button" class="paging-button"
onclick="nextPage();">Next Page</button>
</div>
<script
src="https://ajax.googleapis.com/ajax/libs/jquery/1.8.2/jquery.min.js"></script>
<script
src="https://apis.google.com/js/client.js?onload=googleApiClientReady"></script>
</body>
</html>
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