Usage

import asyncio
from datetime import datetime

from cryptology import ClientWriterStub, Keys, run_client

async def main() -> None:
    client_keys = Keys.load('keys/test.pub', 'keys/test.priv')
    server_keys = Keys.load('keys/cryptology.pub', None)

    async def writer(ws: ClientWriterStub, sequence_id: int) -> None:
        while True:
            await asyncio.sleep(1)
            sequence_id += 1
            await ws.send_signed(
                sequence_id=sequence_id,
                payload={'@type': 'PlaceBuyLimitOrder',
                         'trade_pair': 'BTC_USD',
                         'amount': '2.3',
                         'price': '15000.1',
                         'client_order_id': 123 + sequence_id,
                         'ttl': 0
                        }
            )

    async def read_callback(order: int, ts: datetime, payload: dict) -> None:
        print(order, ts, payload)

    await run_client(
        client_id='test',
        client_keys=client_keys,
        ws_addr='ws://127.0.0.1:8080',
        server_keys=server_keys,
        writer=writer,
        read_callback=read_callback,
        last_seen_order=-1
    )