31 lines
839 B
Python
31 lines
839 B
Python
from __future__ import annotations
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from typing import Any, Protocol
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from backend.data.contracts import DataSource, ProviderResult
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class ProviderError(RuntimeError):
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pass
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class MarketDataProvider(Protocol):
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source: DataSource
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@property
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def configured(self) -> bool: ...
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def calendar(self, start_date: str, end_date: str) -> ProviderResult: ...
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def entities(self) -> ProviderResult: ...
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def daily(self, entity_type: str, identifier: str, end_date: str) -> ProviderResult: ...
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def minute(self, entity_type: str, identifier: str, trade_date: str) -> ProviderResult: ...
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def snapshot_inputs(
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self, trade_date: str, previous_trade_date: str
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) -> dict[str, ProviderResult | dict[str, Any]]: ...
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def sector_members(self, representative: str, trade_date: str) -> ProviderResult: ...
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