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d10f4af6d6
This ensures that any syntax issues are caught early (by type checkers and tests). Backends that are missing dependencies are skipped. By importing, this exposed an issue where the redis type annotations raised an exception, which has been fixed by using forward annotations. To help avoid import dependency hell, the Backend ABC has been moved to `fastapi_cache.types`. In the process, it has been made an actual ABC.
30 lines
626 B
Python
30 lines
626 B
Python
from fastapi_cache.types import Backend
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from fastapi_cache.backends import inmemory
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__all__ = ["Backend", "inmemory"]
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# import each backend in turn and add to __all__. This syntax
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# is explicitly supported by type checkers, while more dynamic
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# syntax would not be recognised.
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try:
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from fastapi_cache.backends import dynamodb
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except ImportError:
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pass
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else:
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__all__ += ["dynamodb"]
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try:
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from fastapi_cache.backends import memcached
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except ImportError:
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pass
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else:
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__all__ += ["memcached"]
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try:
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from fastapi_cache.backends import redis
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except ImportError:
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pass
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else:
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__all__ += ["redis"]
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