Aleksei Sokol
53f14a8624
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Changes: - put ObservabilityMiddleware before ExceptionHandlerMiddleware to avoid repetative code - add application startup and last metrics update metrics along with CPU usage metric and threads count - move host and port to new uvicorn section at config along with new reload and forwarded_allow_ips - add request_id and remove trace_id/span_id generation if tracing is disabled - move logging logic from utils to observability - pass trace_id/span_id in HEX form
30 lines
962 B
Django/Jinja
30 lines
962 B
Django/Jinja
"""Metrics dependency functions are defined here."""
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from fastapi import FastAPI, Request
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from {{project_slug}}.observability.metrics import Metrics
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def init_dispencer(app: FastAPI, metrics: Metrics) -> None:
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"""Initialize Metrics dispencer at app's state."""
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if hasattr(app.state, "metrics_dep"):
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if not isinstance(app.state.metrics_dep, Metrics):
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raise ValueError(
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f"metrics_dep attribute of app's state is already set with other value ({app.state.metrics_dep})"
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)
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return
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app.state.metrics_dep = metrics
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def from_app(app: FastAPI) -> Metrics:
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"""Get a Metrics from app state."""
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if not hasattr(app.state, "metrics_dep"):
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raise ValueError("Metrics dispencer was not initialized at app preparation")
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return app.state.metrics_dep
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async def from_request(request: Request) -> Metrics:
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"""Get a Metrics from request's app state."""
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return from_app(request.app)
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