youtube API get all playlist id from a channel : python - python-3.x

Question

I'm trying to have a list of all playlists from a specific channel in youtube API ... in python
I'd like to have a list of playlist_id in a array
all_playlist_item = []
if I launch
https://www.googleapis.com/youtube/v3/playlists?part=snippet&channelId=UC1udnO-W6gpR9qzleJ5SDKw&key=xxxxxx
here's the response from this request
{
"kind": "youtube#playlistListResponse",
"etag": "PMwo-9BIp7p_L2ynH9sFOGIOido",
"nextPageToken": "CAUQAA",
"pageInfo": {
"totalResults": 17,
"resultsPerPage": 5
},
"items": [
{
"kind": "youtube#playlist",
"etag": "-V67IpyB9a1JGDGJ4pVQnEoMRy4",
"id": "PLWi7PxnyAMeN1tb-ldDzJcnJy2yd5wYrO",
"snippet": {
...
I thing i have to used nextPageToken, but I don't know how to code this function for playlist items
Here's my code (extract in excel all videos just from a specific playlist)
channel_name="UC1udnO-W6gpR9qzleJ5SDKw"
playlist_name="PLWi7PxnyAMeOJmVLv8Z_N3edNyipsnHbo"
api_key = "xxxxxx"
from apiclient.discovery import build
import pandas as pd
youtube = build('youtube', 'v3', developerKey=api_key)
def get_channel_videos(channel_id):
# get Uploads playlist id
res = youtube.channels().list(id=channel_id,
part='contentDetails').execute()
playlist_id = res['items'][0]['contentDetails']['relatedPlaylists']['uploads']
videos = []
next_page_token = None
while 1:
res = youtube.playlistItems().list(playlistId=playlist_name,
part='snippet',
maxResults=50,
pageToken=next_page_token).execute()
videos += res['items']
next_page_token = res.get('nextPageToken')
if next_page_token is None:
break
return videos
videos = get_channel_videos(channel_name)
def get_videos_stats(video_ids):
stats = []
for i in range(0, len(video_ids), 50):
res = youtube.videos().list(id=','.join(video_ids[i:i+50]),
part='statistics').execute()
stats += res['items']
return stats
video_ids = list(map(lambda x:x['snippet']['resourceId']['videoId'], videos))
stats = get_videos_stats(video_ids)
d = []
if len(stats)!=len(videos):
i=1
j=0
else:
i=0
j=0
len_video = len(videos)
len_stats = len(stats)
for video in videos:
if i >= len_video:
break
Url_video='https://www.youtube.com/watch?v='+videos[i]['snippet']['resourceId']['videoId']+'&list='+playlist_name
d.append((videos[i]['snippet']['title'],
videos[i]['snippet']['resourceId']['videoId'],
Url_video,
stats[j]['statistics']['viewCount'],
stats[j]['statistics']['likeCount'],
stats[j]['statistics']['dislikeCount']
))
i+=1
j+=1
df=pd.DataFrame(d, columns=('Titre_video', 'ID_video', 'Url_video','vues','like','dislike'))
df['vues'] = df['vues'].astype(int)
df['like'] = df['like'].astype(int)
df['dislike'] = df['dislike'].astype(int)
df.index+=1
df.to_excel("youtube-playlist.xlsx")

Answer 1

From the pagination doc, you can use :
youtube.playlistItems().list_next(request, response) for iterating playlist item response
youtube.playlists().list_next(request, response) for iterating channel response
Get all videos from Playlist
import googleapiclient.discovery
playlist_id = "PLWi7PxnyAMeOJmVLv8Z_N3edNyipsnHbo"
youtube = googleapiclient.discovery.build("youtube", "v3", developerKey = "YOUR_API_KEY")
request = youtube.playlistItems().list(
part = "snippet",
playlistId = playlist_id,
maxResults = 50
)
response = request.execute()
playlist_items = []
while request is not None:
response = request.execute()
playlist_items += response["items"]
request = youtube.playlistItems().list_next(request, response)
print(f"total: {len(playlist_items)}")
print(playlist_items)
Get all playlists from channel
import googleapiclient.discovery
channel_id = "UC1udnO-W6gpR9qzleJ5SDKw"
youtube = googleapiclient.discovery.build("youtube", "v3", developerKey = "YOUR_API_KEY")
request = youtube.playlists().list(
part = "snippet",
channelId = channel_id,
maxResults = 50
)
response = request.execute()
playlists = []
while request is not None:
response = request.execute()
playlists += response["items"]
request = youtube.playlists().list_next(request, response)
print(f"total: {len(playlists)}")
print(playlists)