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