backend.py

import http.server
import sys


class BackendHandler(http.server.BaseHTTPRequestHandler):
    def do_GET(self):
        self.send_response(200)
        self.send_header("Content-Type", "text/plain")
        self.end_headers()
        message = f"Response from backend server on port {self.server.server_address[1]}"
        self.wfile.write(message.encode())

    def log_message(self, format, *args):
        print(f"[Backend:{self.server.server_address[1]}] {args[0]}")


if __name__ == "__main__":
    port = int(sys.argv[1]) if len(sys.argv) > 1 else 8081
    server = http.server.HTTPServer(("localhost", port), BackendHandler)
    print(f"Backend server running on port {port}")
    server.serve_forever()