Get all youtube links of a Discourse topic

main.py

import urllib.request
import json
with urllib.request.urlopen("https://linux-user.gr/t/125.json") as url:
    data = json.loads(url.read().decode())

# construct the biggest query of the world
start_url = "https://linux-user.gr/t/125/posts.json?"

for stream_id in data['post_stream']['stream']:
    start_url = start_url + "post_ids[]=" + str(stream_id) + "&"


with urllib.request.urlopen(start_url) as posts_url:
    post_data = json.loads(posts_url.read().decode())
    for post in post_data['post_stream']['posts']:
        try:
            for link in post['link_counts']:
                if link['title'] == 'YouTube':
                    print(link['url'])
        except KeyError as e:
            pass