socket_client.py

"""
Minimal socket client: connect, send 0100, receive 0110.

Requires a server running (e.g. from test_socket_e2e or a custom handler).
"""


from iso8583_toolkit import build, parse
from iso8583_toolkit.framing import FramingConfig
from iso8583_toolkit.socket_client import Iso8583Client


def main() -> None:
    host = "127.0.0.1"
    port = 9999  # Change to your server port

    req_de = {
        2: "1234567890123456",
        3: "000000",
        4: "000000001000",
        11: "000001",
        12: "123456",
        13: "0217",
    }
    req = build("0100", req_de)

    client = Iso8583Client(host=host, port=port, framing_config=FramingConfig(length_bytes=2))
    client.connect()

    try:
        client.send(req.message)
        resp = client.send_and_receive(req.message, timeout=5.0)
        if resp:
            parsed = parse(resp)
            print(f"Response MTI: {parsed.mti}, DE 39: {parsed.data_elements.get(39)}")
        else:
            print("No response (timeout or error)")
    finally:
        client.disconnect()


if __name__ == "__main__":
    main()