stable/freqtrade/rpc/webhook.py
2020-09-19 20:29:44 +02:00

73 lines
2.6 KiB
Python

"""
This module manages webhook communication
"""
import logging
from typing import Any, Dict
from requests import post, RequestException
from freqtrade.rpc import RPC, RPCMessageType
logger = logging.getLogger(__name__)
logger.debug('Included module rpc.webhook ...')
class Webhook(RPC):
""" This class handles all webhook communication """
def __init__(self, freqtrade) -> None:
"""
Init the Webhook class, and init the super class RPC
:param freqtrade: Instance of a freqtrade bot
:return: None
"""
super().__init__(freqtrade)
self._config = freqtrade.config
self._url = self._config['webhook']['url']
def cleanup(self) -> None:
"""
Cleanup pending module resources.
This will do nothing for webhooks, they will simply not be called anymore
"""
pass
def send_msg(self, msg: Dict[str, Any]) -> None:
""" Send a message to telegram channel """
try:
if msg['type'] == RPCMessageType.BUY_NOTIFICATION:
valuedict = self._config['webhook'].get('webhookbuy', None)
elif msg['type'] == RPCMessageType.BUY_CANCEL_NOTIFICATION:
valuedict = self._config['webhook'].get('webhookbuycancel', None)
elif msg['type'] == RPCMessageType.SELL_NOTIFICATION:
valuedict = self._config['webhook'].get('webhooksell', None)
elif msg['type'] == RPCMessageType.SELL_CANCEL_NOTIFICATION:
valuedict = self._config['webhook'].get('webhooksellcancel', None)
elif msg['type'] in (RPCMessageType.STATUS_NOTIFICATION,
RPCMessageType.STARTUP_NOTIFICATION,
RPCMessageType.WARNING_NOTIFICATION):
valuedict = self._config['webhook'].get('webhookstatus', None)
else:
raise NotImplementedError('Unknown message type: {}'.format(msg['type']))
if not valuedict:
logger.info("Message type '%s' not configured for webhooks", msg['type'])
return
payload = {key: value.format(**msg) for (key, value) in valuedict.items()}
self._send_msg(payload)
except KeyError as exc:
logger.exception("Problem calling Webhook. Please check your webhook configuration. "
"Exception: %s", exc)
def _send_msg(self, payload: dict) -> None:
"""do the actual call to the webhook"""
try:
post(self._url, data=payload)
except RequestException as exc:
logger.warning("Could not call webhook url. Exception: %s", exc)