Function echo_handler

test_interop/python_request_receiver.py:39–47

(path, data, request_id, link_id, remote_identity, requested_at)

def echo_handler(path, data, request_id, link_id, remote_identity, requested_at):
    ok = (data == EXPECTED_PAYLOAD)
    print(f"[python] handler called: path={path!r} data_len={len(data)} match={ok}",
          flush=True)
    state["request_seen"] = True
    state["request_ok"]   = ok
    # Echo the bytes back regardless — easier to debug a mismatch on the
    # client side if both ends see the wrong content.
    return data


def on_link_established(link):