def data_source(self) -> OrderBookTrackerDataSource: if not self._data_source: if self._data_source_type is OrderBookTrackerDataSourceType.REMOTE_API: self._data_source = RemoteAPIOrderBookDataSource() else: raise ValueError(f"data_source_type {self._data_source_type} is not supported.") return self._data_source
def data_source(self) -> OrderBookTrackerDataSource: if not self._data_source: if self._data_source_type is OrderBookTrackerDataSourceType.REMOTE_API: self._data_source = RemoteAPIOrderBookDataSource() elif self._data_source_type is OrderBookTrackerDataSourceType.EXCHANGE_API: self._data_source = KucoinAPIOrderBookDataSource(trading_pairs=self._trading_pairs) else: raise ValueError(f"data_source_type {self._data_source_type} is not supported.") return self._data_source
def data_source(self) -> OrderBookTrackerDataSource: if not self._data_source: if self._data_source_type is OrderBookTrackerDataSourceType.REMOTE_API: self._data_source = RemoteAPIOrderBookDataSource() elif self._data_source_type is OrderBookTrackerDataSourceType.EXCHANGE_API: self._data_source = DolomiteAPIOrderBookDataSource( trading_pairs=self._trading_pairs, rest_api_url=self.rest_api_url, websocket_url=self.websocket_url ) else: raise ValueError(f"data_source_type {self._data_source_type} is not supported.") return self._data_source