import json
import requests

session = requests.Session()
session.proxies.update(proxies)
session.headers.update(headers)

response = session.post(endpoint, data=post_data, timeout=10)


with open('cache/cookies.json', 'w') as f:
    cookies_dict = {}
    for cookie in response.cookies:
        cookies_dict[cookie.name] = cookie.value
    json.dump(cookies_dict, f)