import requests
import re

def get_sales_data(url):
    headers = {
        'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.3'
    }
    response = requests.get(url, headers=headers)
    html = response.text
    pattern = re.compile(r'"soldQuantity":(\d+)')
    result = pattern.search(html)

    if result:
        return result.group(1)
    else:
        return None

if __name__ == '__main__':
    url = 'https://detai