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Add documentation and clarity for send_msg

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This commit is contained in:
Matthias 2022-07-26 20:24:52 +02:00
parent 229e8864bb
commit 7bac054668
4 changed files with 29 additions and 4 deletions
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17
docs/strategy-customization.md
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@ -731,6 +731,23 @@ if self.dp:
!!! Warning "Warning about backtesting"
This method will always return up-to-date values - so usage during backtesting / hyperopt will lead to wrong results.
### Send Notification
The dataprovider `.send_msg()` function allows you to send custom notifications from your strategy.
Identical notifications will only be sent once per candle, unless the 2nd argument (`always_send`) is set to True.
``` python
self.dp.send_msg(f"{metadata['pair']} just got hot!")
# Force send this notification, avoid caching (Please read warning below!)
self.dp.send_msg(f"{metadata['pair']} just got hot!", always_send=True)
```
Notifications will only be sent in trading modes (Live/Dry-run) - so this method can be called without conditions for backtesting.
!!! Warning "Spamming"
You can spam yourself pretty good by setting `always_send=True` in this method. Use this with great care and only in conditions you know will not happen throughout a candle to avoid a message every 5 seconds.
### Complete Data-provider sample
```python

4
docs/telegram-usage.md
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@ -98,6 +98,7 @@ Example configuration showing the different settings:
"exit_fill": "off",
"protection_trigger": "off",
"protection_trigger_global": "on",
"strategy_msg": "off",
"show_candle": "off"
},
"reload": true,
@ -109,7 +110,8 @@ Example configuration showing the different settings:
`exit` notifications are sent when the order is placed, while `exit_fill` notifications are sent when the order is filled on the exchange.
`*_fill` notifications are off by default and must be explicitly enabled.
`protection_trigger` notifications are sent when a protection triggers and `protection_trigger_global` notifications trigger when global protections are triggered.
`show_candle` - show candle values as part of entry/exit messages. Only possible value is "ohlc".
`strategy_msg` - Receive notifications from the strategy, sent via `self.dp.send_msg()` from the strategy [more details](strategy-customization.md#send-notification).
`show_candle` - show candle values as part of entry/exit messages. Only possible values are `"ohlc"` or `"off"`.
`balance_dust_level` will define what the `/balance` command takes as "dust" - Currencies with a balance below this will be shown.
`reload` allows you to disable reload-buttons on selected messages.

4
freqtrade/constants.py
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@ -317,6 +317,10 @@ CONF_SCHEMA = {
'type': 'string',
'enum': ['off', 'ohlc'],
},
'strategy_msg': {
'type': 'string',
'enum': TELEGRAM_SETTING_OPTIONS,
},
}
},
'reload': {'type': 'boolean'},

8
freqtrade/data/dataprovider.py
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@ -36,8 +36,9 @@ class DataProvider:
self.__slice_index: Optional[int] = None
self.__cached_pairs_backtesting: Dict[PairWithTimeframe, DataFrame] = {}
self._msg_queue: deque = deque()
self.__msg_cache = PeriodicCache(
maxsize=1000, ttl=timeframe_to_seconds(self._config['timeframe']))
maxsize=1000, ttl=timeframe_to_seconds(self._config.get('timeframe', '1h')))
def _set_dataframe_max_index(self, limit_index: int):
"""
@ -271,9 +272,10 @@ class DataProvider:
raise OperationalException(NO_EXCHANGE_EXCEPTION)
return self._exchange.fetch_l2_order_book(pair, maximum)
def send_msg(self, message: str, always_send: bool = False) -> None:
def send_msg(self, message: str, *, always_send: bool = False) -> None:
"""
TODO: Document me
Send custom RPC Notifications from your bot.
Will not send any bot in modes other than Dry-run or Live.
:param message: Message to be sent. Must be below 4096.
:param always_send: If False, will send the message only once per candle, and surpress
identical messages.