Sergey Antropoff
37 lines
1.0 KiB
Python
37 lines
1.0 KiB
Python
"""Application resource ownership."""
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from __future__ import annotations
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from collections.abc import AsyncIterator, Callable
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from contextlib import AbstractAsyncContextManager, asynccontextmanager
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from fastapi import FastAPI
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from app.config import Settings
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from app.db.pool import AsyncpgDatabase, Database
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DatabaseFactory = Callable[[Settings], Database]
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Lifespan = Callable[[FastAPI], AbstractAsyncContextManager[None]]
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def create_lifespan(settings: Settings, database_factory: DatabaseFactory) -> Lifespan:
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"""Build a lifespan context so tests can inject a database implementation."""
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@asynccontextmanager
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async def lifespan(app: FastAPI) -> AsyncIterator[None]:
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database = database_factory(settings)
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await database.connect()
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app.state.database = database
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try:
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yield
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finally:
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await database.close()
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return lifespan
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def default_database_factory(settings: Settings) -> Database:
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"""Create the production asyncpg adapter."""
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return AsyncpgDatabase(settings)
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