pythonyoutube-apiyoutube-data-apiyoutube-livestreaming-api

Issue With Changing Category for Livestream via YouTube API


I am using the YouTube API to set a category of a livestream. This is what I have so far. When the code runs nothing seems to happen.

    def Setcategory(id, title):

       //Rest of the function

        request = youtube.videos().update(
            body={
                "id": id,          
                "snippet": {
                    "title": title,
                    "categoryId": "17"
                },
            }
        )
        response = request.execute()
        return response

I have already made sure that the correct id is being passed. That did not seem to be the issue.

I would really appreciate some advice on this. Thank you.


Solution

  • I figured it out. It turns out that you need to schedule your stream(s) first, then modify the category after. For example, using oAuth, I schedule two streams for my church's services, changing the second scheduled stream to a different stream key temporarily (I have another script to change it back after the first service ends):

    from google.oauth2.credentials import Credentials
    from google_auth_oauthlib.flow import InstalledAppFlow
    from google.auth.transport.requests import Request
    from googleapiclient.discovery import build
    import os
    
    #authentication filepaths and files
    ls_token = '/path/to/token.json'
    ls_credentials = '/path/to/credentials.json'
    
    #video ids filepaths and files
    video_id_text = "/path/to/video_id.txt"
    
    #AM service metadata
    ls_title_AM = "Title"
    ls_description_AM = "Description\nDescription on a new line."
    ls_date_AM = "2024-04-11T10:30:00-03:00" #YYYY-MM-DDThh:mm:ss-TZ:00
    ls_privacy_AM = "private"
    thumbnail_AM = "/path/to/AMServiceThumbnail.png"
    ls_category_AM = "29" # Category ID for Nonprofits & Activism
    
    #PM service metadata
    ls_title_PM = "Title"
    ls_description_PM = "Description\nDescription on a new line."
    ls_date_PM = "2024-04-11T14:00:00-03:00" #YYYY-MM-DDThh:mm:ss-TZ:00
    ls_privacy_PM = "private"
    thumbnail_PM = "/path/to/PMServiceThumbnail.png"
    ls_category_PM = "29" # Category ID for Nonprofits & Activism
    
    #temporary stream key to change the PM service to in order to not conflict with the AM service
    desired_stream_key = "MY_STREAM_KEY"
    
    # Function to authenticate and build the YouTube API client
    def get_authenticated_service():
        creds = None
        if os.path.exists(ls_token):
            creds = Credentials.from_authorized_user_file(ls_token)
        if not creds or not creds.valid:
            if creds and creds.expired and creds.refresh_token:
                creds.refresh(Request())
            else:
                flow = InstalledAppFlow.from_client_secrets_file(
                    ls_credentials, SCOPES)
                creds = flow.run_local_server(port=0)
            with open(ls_token, 'w') as token:
                token.write(creds.to_json())
        return build('youtube', 'v3', credentials=creds)
    
    # Function to schedule a live video on YouTube
    def schedule_live_video(youtube, title, description, start_time, privacy_status):
        request_body = {
            "snippet": {
                "title": title,
                "description": description,
                "scheduledStartTime": start_time,
            },
            "status": {
                "privacyStatus": privacy_status
            },
            "contentDetails": {
                "enableAutoStart": True,
                "enableAutoStop": True,
                "enableLowLatency": True,
                "enableDvr": True,
                "madeForKids": "false",
                "selfDeclaredMadeForKids": "false"
            }
        }
        live_broadcast = youtube.liveBroadcasts().insert(
            part="snippet,status,contentDetails",
            body=request_body
        ).execute()
    
        return live_broadcast['id']
    
    from googleapiclient.http import MediaFileUpload
    
    def upload_thumbnail(youtube, video_id, thumbnail_filename):
        # Create a MediaFileUpload object for the thumbnail
        media = MediaFileUpload(thumbnail_filename, chunksize=-1, resumable=True)
    
        # Call the YouTube API to set the thumbnail for the video
        request = youtube.thumbnails().set(
            videoId=video_id,
            media_body=media
        )
        response = request.execute()
        return response
    
    def get_live_stream_id_by_key(youtube, stream_key):
        request = youtube.liveStreams().list(
            part="id,cdn",
            mine=True,
            fields="items(id,cdn/ingestionInfo/streamName)",
            maxResults=50
        )
        response = request.execute()
        for item in response.get('items', []):
            stream_id = item.get('id')
            cdn_info = item.get('cdn', {})
            ingestion_info = cdn_info.get('ingestionInfo', {})
            if ingestion_info.get('streamName') == stream_key:
                return stream_id
        return None
    
    # Function to modify the category of a live video
    def modify_video_category(youtube, video_id, category_id):
        video = youtube.videos().list(
            part="snippet",
            id=video_id
        ).execute()
        snippet = video['items'][0]['snippet']
        snippet['categoryId'] = category_id
    
        request_body = {
            "id": video_id,
            "snippet": snippet
        }
        youtube.videos().update(
            part="snippet",
            body=request_body
        ).execute()
    
    def main():
        youtube = get_authenticated_service()
    
        # Schedule the first live video
        video_id1 = schedule_live_video(youtube, ls_title_AM, ls_description_AM,
                                         ls_date_AM, ls_privacy_AM)
        print("First live video scheduled with ID:", video_id1)
    
        # Upload AMServiceThumbnail.png for the first live video
        thumbnail_filename1 = thumbnail_AM
        thumbnail_response1 = upload_thumbnail(youtube, video_id1, thumbnail_filename1)
        thumbnail_url1 = thumbnail_response1["items"][0]["default"]["url"]
    
        # Modify the category of the first live video
        modify_video_category(youtube, video_id1, ls_category_AM)
        print("Modified video category of AM service.")
    
        # Retrieve the ID of the live stream associated with the desired stream key
        desired_stream_id = get_live_stream_id_by_key(youtube, desired_stream_key)
    
        if desired_stream_id:
            print("Using temporary live stream key for PM service.")
        else:
            print("Temporary live stream key not found.")
            return
    
        # Schedule the second live video and associate it with the existing live stream
        video_id2 = schedule_live_video(youtube, ls_title_PM, ls_description_PM,
                                         ls_date_PM, ls_privacy_PM)
        print("Second live video scheduled with ID:", video_id2)
    
        # Associate the second live video with the existing live stream
        youtube.liveBroadcasts().bind(
            part="id,contentDetails",
            id=video_id2,
            streamId=desired_stream_id
        ).execute()
    
        # Upload PMServiceThumbnail.png for the second live video
        thumbnail_filename2 = thumbnail_PM
        thumbnail_response2 = upload_thumbnail(youtube, video_id2, thumbnail_filename2)
        thumbnail_url2 = thumbnail_response2["items"][0]["default"]["url"]
    
        # Modify the category of the second live video
        modify_video_category(youtube, video_id2, ls_category_PM)
        print("Modified video category of PM service.")
    
        # Write the video ids to a file to be used in modifystreamkey.py script
        with open(video_id_text, "w") as f:
            f.write(f"video_id2 = {video_id2}\n")
    
    if __name__ == "__main__":
        main()