stable/freqtrade/rpc/webhook.py

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"""
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
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.SELL_NOTIFICATION:
valuedict = self._config['webhook'].get('webhooksell', None)
elif msg['type'] == RPCMessageType.STATUS_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
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payload = {}
for k in valuedict:
payload[k] = valuedict[k].format(**msg)
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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:
"""does the actual call to the webhook"""
try:
url = self._config['webhook']['url']
post(url, data=payload)
except RequestException as exc:
logger.warning("Could not call webhook url. Exception: %s", exc)