main.py

import os
import sys
import time
from ccapi import EventHandler, SessionOptions, SessionConfigs, Session, Subscription, Request, Event, Message


class MyEventHandler(EventHandler):
    def __init__(self):
        super().__init__()

    def processEvent(self, event: Event, session: Session) -> bool:
        if event.getType() == Event.Type_AUTHORIZATION_STATUS:
            print(f"Received an event of type AUTHORIZATION_STATUS:\n{event.toStringPretty(2, 2)}")
            message = event.getMessageList()[0]
            if message.getType() == Message.Type_AUTHORIZATION_SUCCESS:
                request = Request(Request.Operation_FIX, "coinbase", "", "same correlation id for subscription and request")
                request.appendParamFix(
                    [
                        (35, "D"),
                        (11, "6d4eb0fb-2229-469f-873e-557dd78ac11e"),
                        (55, "BTC-USD"),
                        (54, "1"),
                        (44, "20000"),
                        (38, "0.001"),
                        (40, "2"),
                        (59, "1"),
                    ]
                )
                session.sendRequestByFix(request)
        elif event.getType() == Event.Type_FIX:
            print(f"Received an event of type FIX:\n{event.toStringPretty(2, 2)}")
        return True  # This line is needed.


if __name__ == "__main__":
    if not os.environ.get("COINBASE_API_KEY"):
        print("Please set environment variable COINBASE_API_KEY", file=sys.stderr)
        sys.exit(1)
    if not os.environ.get("COINBASE_API_SECRET"):
        print("Please set environment variable COINBASE_API_SECRET", file=sys.stderr)
        sys.exit(1)
    if not os.environ.get("COINBASE_API_PASSPHRASE"):
        print("Please set environment variable COINBASE_API_PASSPHRASE", file=sys.stderr)
        sys.exit(1)
    eventHandler = MyEventHandler()
    option = SessionOptions()
    config = SessionConfigs()
    session = Session(option, config, eventHandler)
    subscription = Subscription("coinbase", "", "FIX", "", "same correlation id for subscription and request")
    session.subscribeByFix(subscription)
    time.sleep(10)
    session.stop()
    print("Bye")