feat: add prepend_data to download_data endpoint

part of freqtrade/frequi#2743

freqtrade/rpc/api_server/api_download_data.py

@@ -63,6 +63,7 @@ def pairlists_evaluate(
     config_loc["timeframes"] = payload.timeframes
     config_loc["erase"] = payload.erase
     config_loc["download_trades"] = payload.download_trades
+    config_loc["prepend_data"] = payload.prepend_data
     if payload.candle_types is not None:
         config_loc["candle_types"] = payload.candle_types
 

freqtrade/rpc/api_server/api_schemas.py

@@ -513,6 +513,7 @@ class DownloadDataPayload(ExchangeModePayloadMixin, BaseModel):
     erase: bool = False
     download_trades: bool = False
     candle_types: list[str] | None = None
+    prepend_data: bool = False
 
     @model_validator(mode="before")
     def check_mutually_exclusive(cls, values):

freqtrade/rpc/api_server/api_v1.py

@@ -59,7 +59,8 @@ logger = logging.getLogger(__name__)
 # 2.43: Add /profit_all endpoint
 # 2.44: Add candle_types parameter to download-data endpoint
 # 2.45: Add price to forceexit endpoint
-API_VERSION = 2.45
+# 2.46: Add prepend_data to download-data endpoint
+API_VERSION = 2.46
 
 # Public API, requires no auth.
 router_public = APIRouter()