aiohttp-proxy-headers.py

#!/usr/bin/env python3
"""
aiohttp with proxy headers example.

Configuration via environment variables:
    PROXY_URL       - Proxy URL (required), e.g., http://user:pass@proxy:8080
    TEST_URL        - URL to request (default: https://api.ipify.org?format=json)
    PROXY_HEADER    - Header name to send to proxy (optional)
    PROXY_VALUE     - Header value to send to proxy (optional)
    RESPONSE_HEADER - Header name to read from response (optional)

See: https://github.com/proxymesh/python-proxy-headers
"""
import os
import sys
import asyncio
from python_proxy_headers import aiohttp_proxy

# Get configuration from environment
proxy_url = os.environ.get('PROXY_URL') or os.environ.get('HTTPS_PROXY')
if not proxy_url:
    print("Error: Set PROXY_URL environment variable", file=sys.stderr)
    sys.exit(1)

test_url = os.environ.get('TEST_URL', 'https://api.ipify.org?format=json')
proxy_header = os.environ.get('PROXY_HEADER')
proxy_value = os.environ.get('PROXY_VALUE')
response_header = os.environ.get('RESPONSE_HEADER')

proxy_headers = {proxy_header: proxy_value} if proxy_header and proxy_value else None


async def main():
    async with aiohttp_proxy.ProxyClientSession() as session:
        async with session.get(
            test_url,
            proxy=proxy_url,
            proxy_headers=proxy_headers
        ) as response:
            body = await response.text()
            print(f"Status: {response.status}")
            print(f"Body: {body}")
            if response_header:
                print(f"{response_header}: {response.headers.get(response_header)}")


if __name__ == '__main__':
    asyncio.run(main())