Aleksei Sokol
afe5d882ac
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This is a FastAPI backend microservice template used with `copier` utility. Features of applied template are: - Configuration file processing logic - Metrics and tracing (both optional) configuration available - Debug endpoints - Database migration commands, prepared Alembic environment - Database usage example in ping_db endpoint - gitea sanity check pipeline
34 lines
1.3 KiB
Python
34 lines
1.3 KiB
Python
"""PostgresConnectionManager dependency functions are defined here."""
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from fastapi import FastAPI, Request
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from structlog.stdlib import BoundLogger
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def init_dispencer(app: FastAPI, logger: BoundLogger) -> None:
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"""Initialize BoundLogger dispencer at app's state."""
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if hasattr(app.state, "logger"):
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if not isinstance(app.state.logger, BoundLogger):
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raise ValueError("logger attribute of app's state is already set" f"with other value ({app.state.logger})")
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return
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app.state.logger = logger
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def attach_to_request(request: Request, logger: BoundLogger) -> None:
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"""Set logger for a concrete request. If request had already had a logger, replace it."""
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if hasattr(request.state, "logger"):
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if not isinstance(request.state.logger, BoundLogger):
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logger.warning("request.state.logger is already set with other value", value=request.state.logger)
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request.state.logger = logger
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def obtain(request: Request) -> BoundLogger:
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"""Get a logger from request or app state."""
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if hasattr(request.state, "logger"):
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logger = request.state.logger
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if isinstance(logger, BoundLogger):
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return logger
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if not hasattr(request.app.state, "logger"):
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raise ValueError("BoundLogger dispencer was not initialized at app preparation")
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return request.app.state.logger
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