Initial commit: Gold Trading Simulator with AI-powered analysis

backend/app/providers/base.py

@@ -0,0 +1,15 @@
+from __future__ import annotations
+
+import abc
+from typing import AsyncIterator
+from .typing import Kline
+
+
+class BaseProvider(abc.ABC):
+    @abc.abstractmethod
+    async def stream_klines(self, symbol: str, timeframe: str) -> AsyncIterator["Kline"]:
+        ...
+
+    @abc.abstractmethod
+    async def get_historical_ohlcv(self, symbol: str, timeframe: str, start=None, end=None):
+        ...