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- Compatibility with older Python versions - use `Optional` and `Union` instead of `... | None` and `a | b` - use `typing_extensions.Protocol` instead of `typing.Protocol` - use `typing.Dict`, `typing.List`, etc. instead of the concrete types. - Fix backend `.get()` annotations; not all were marked as `Optional[str]` - Don't return anything from `Backend.set()` methods. - The `Coder.decode_as_type()` type parameter must be a type to be compatible with `ModelField(..., type_=...)`. - Clean up `Optional[]` use, remove where it is not needed. - Clean up variable use in decorator, keeping the raw cached value separate from the return value from the wrapped endpoint. - Annotate the wrapper as returning either the original type _or_ a Response (returning a 304 Not Modified response). - Clean up small edge-case where `response` could be `None`. - Correct type annotation on `JsonCoder.decode()` to match `Coder.decode()`.
20 lines
582 B
Python
20 lines
582 B
Python
import hashlib
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from typing import Any, Callable, Dict, Optional, Tuple
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from starlette.requests import Request
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from starlette.responses import Response
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def default_key_builder(
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func: Callable[..., Any],
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namespace: str = "",
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request: Optional[Request] = None,
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response: Optional[Response] = None,
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args: Optional[Tuple[Any, ...]] = None,
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kwargs: Optional[Dict[str, Any]] = None,
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) -> str:
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cache_key = hashlib.md5( # nosec:B303
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f"{func.__module__}:{func.__name__}:{args}:{kwargs}".encode()
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).hexdigest()
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return f"{namespace}:{cache_key}"
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