YouTube API to fetch all videos on a channel

Question

You need to look at the YouTube Data API. You will find there documentation about how the API can be accessed. You can also find client libraries.

You could also make the requests yourself. Here is an example URL that retrieves the latest videos from a channel:

https://www.googleapis.com/youtube/v3/search?key={your_key_here}&channelId={channel_id_here}&part=snippet,id&order=date&maxResults=20

After that you will receive a JSON with video ids and details, and you can construct your video URL like this:

http://www.youtube.com/watch?v={video_id_here}

First, you need to get the ID of the playlist that represents the uploads from the user/channel:

https://developers.google.com/youtube/v3/docs/channels/list#try-it

You can specify the username with the forUsername={username} param, or specify mine=true to get your own (you need to authenticate first). Include part=contentDetails to see the playlists.

GET https://www.googleapis.com/youtube/v3/channels?part=contentDetails&forUsername=jambrose42&key={YOUR_API_KEY}

In the result "relatedPlaylists" will include "likes" and "uploads" playlists. Grab that "upload" playlist ID. Also note the "id" is your channelID for future reference.

Next, get a list of videos in that playlist:

https://developers.google.com/youtube/v3/docs/playlistItems/list#try-it

Just drop in the playlistId!

GET https://www.googleapis.com/youtube/v3/playlistItems?part=snippet%2CcontentDetails&maxResults=50&playlistId=UUpRmvjdu3ixew5ahydZ67uA&key={YOUR_API_KEY}

Here is a video from Google Developers showing how to list all videos in a channel in v3 of the YouTube API.

There are two steps:

1. Query Channels to get the "uploads" Id. eg https://www.googleapis.com/youtube/v3/channels?id={channel Id}&key={API key}&part=contentDetails

2. Use this "uploads" Id to query PlaylistItems to get the list of videos. eg https://www.googleapis.com/youtube/v3/playlistItems?playlistId={"uploads" Id}&key={API key}&part=snippet&maxResults=50

To get channels list :

Get Channels list by forUserName:

https://www.googleapis.com/youtube/v3/channels?part=snippet,contentDetails,statistics&forUsername=Apple&key=

Get channels list by channel id:

https://www.googleapis.com/youtube/v3/channels/?part=snippet,contentDetails,statistics&id=UCE_M8A5yxnLfW0KghEeajjw&key=

Get Channel sections:

https://www.googleapis.com/youtube/v3/channelSections?part=snippet,contentDetails&channelId=UCE_M8A5yxnLfW0KghEeajjw&key=

To get Playlists :

Get Playlists by Channel ID:

https://www.googleapis.com/youtube/v3/playlists?part=snippet,contentDetails&channelId=UCq-Fj5jknLsUf-MWSy4_brA&maxResults=50&key=

Get Playlists by Channel ID with pageToken:

https://www.googleapis.com/youtube/v3/playlists?part=snippet,contentDetails&channelId=UCq-Fj5jknLsUf-MWSy4_brA&maxResults=50&key=&pageToken=CDIQAA

To get PlaylistItems :

Get PlaylistItems list by PlayListId:

https://www.googleapis.com/youtube/v3/playlistItems?part=snippet,contentDetails&maxResults=25&playlistId=PLHFlHpPjgk70Yv3kxQvkDEO5n5tMQia5I&key=

To get videos :

Get videos list by video id:

https://www.googleapis.com/youtube/v3/videos?part=snippet,contentDetails,statistics&id=YxLCwfA1cLw&key=

Get videos list by multiple videos id:

https://www.googleapis.com/youtube/v3/videos?part=snippet,contentDetails,statistics&id=YxLCwfA1cLw,Qgy6LaO3SB0,7yPJXGO2Dcw&key=

Get comments list

Get Comment list by video ID:

https://www.googleapis.com/youtube/v3/commentThreads?part=snippet,replies&videoId=el****kQak&key=A**********k

Get Comment list by channel ID:

https://www.googleapis.com/youtube/v3/commentThreads?part=snippet,replies&channelId=U*****Q&key=AI********k

Get Comment list by allThreadsRelatedToChannelId:

https://www.googleapis.com/youtube/v3/commentThreads?part=snippet,replies&allThreadsRelatedToChannelId=UC*****ntcQ&key=AI*****k

Here all api's are Get approach.

Based on channel id we con't get all videos directly, that's the important point here.

For integration https://developers.google.com/youtube/v3/quickstart/ios?ver=swift

Here is the code that will return all video ids under your channel

<?php 
    $baseUrl = 'https://www.googleapis.com/youtube/v3/';
    // https://developers.google.com/youtube/v3/getting-started
    $apiKey = 'API_KEY';
    // If you don't know the channel ID see below
    $channelId = 'CHANNEL_ID';

    $params = [
        'id'=> $channelId,
        'part'=> 'contentDetails',
        'key'=> $apiKey
    ];
    $url = $baseUrl . 'channels?' . http_build_query($params);
    $json = json_decode(file_get_contents($url), true);

    $playlist = $json['items'][0]['contentDetails']['relatedPlaylists']['uploads'];

    $params = [
        'part'=> 'snippet',
        'playlistId' => $playlist,
        'maxResults'=> '50',
        'key'=> $apiKey
    ];
    $url = $baseUrl . 'playlistItems?' . http_build_query($params);
    $json = json_decode(file_get_contents($url), true);

    $videos = [];
    foreach($json['items'] as $video)
        $videos[] = $video['snippet']['resourceId']['videoId'];

    while(isset($json['nextPageToken'])){
        $nextUrl = $url . '&pageToken=' . $json['nextPageToken'];
        $json = json_decode(file_get_contents($nextUrl), true);
        foreach($json['items'] as $video)
            $videos[] = $video['snippet']['resourceId']['videoId'];
    }
    print_r($videos);

Note: You can get channel id at https://www.youtube.com/account_advanced after logged in.

Below is a Python alternative that does not require any special packages. By providing the channel id it returns a list of video links for that channel. Please note that you need an API Key for it to work.

import urllib
import json

def get_all_video_in_channel(channel_id):
    api_key = YOUR API KEY

    base_video_url = 'https://www.youtube.com/watch?v='
    base_search_url = 'https://www.googleapis.com/youtube/v3/search?'

    first_url = base_search_url+'key={}&channelId={}&part=snippet,id&order=date&maxResults=25'.format(api_key, channel_id)

    video_links = []
    url = first_url
    while True:
        inp = urllib.urlopen(url)
        resp = json.load(inp)

        for i in resp['items']:
            if i['id']['kind'] == "youtube#video":
                video_links.append(base_video_url + i['id']['videoId'])

        try:
            next_page_token = resp['nextPageToken']
            url = first_url + '&pageToken={}'.format(next_page_token)
        except:
            break
    return video_links