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feat: add the FastApiInstrumentator to the API

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wilson 2026-05-29 10:12:42 +01:00
parent 8b0989a566
commit 40af152a2a
1 changed files with 3 additions and 6 deletions
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7
api/app/observability.py
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@ -14,16 +14,14 @@ from opentelemetry.sdk.trace.export import (
) )
from prometheus_client import start_http_server from prometheus_client import start_http_server
_observability_initialized = False _observability_initialized = False
def setup_observability(app: FastAPI) -> None: def setup_observability(app: FastAPI) -> None:
global _observability_initialized global _observability_initialized
if _observability_initialized: if _observability_initialized:
return return
service_name = os.getenv("OTEL_SERVICE_NAME", "language-learning-api") service_name = os.getenv("OTEL_SERVICE_NAME", "language-learning-api")
metrics_host = os.getenv("OTEL_EXPORTER_PROMETHEUS_HOST", "0.0.0.0") metrics_host = os.getenv("OTEL_EXPORTER_PROMETHEUS_HOST", "0.0.0.0")
metrics_port = int(os.getenv("OTEL_EXPORTER_PROMETHEUS_PORT", "9464")) metrics_port = int(os.getenv("OTEL_EXPORTER_PROMETHEUS_PORT", "9464"))
@ -40,10 +38,9 @@ def setup_observability(app: FastAPI) -> None:
metrics.set_meter_provider(meter_provider) metrics.set_meter_provider(meter_provider)
LoggingInstrumentor().instrument(set_logging_format=True) LoggingInstrumentor().instrument(set_logging_format=True)
FastAPIInstrumentor.instrument_app(app)
# Expose OTel metrics for Prometheus scraping on the standard endpoint. # Expose OTel metrics for Prometheus scraping on the standard endpoint.
start_http_server(port=metrics_port, addr=metrics_host) start_http_server(port=metrics_port, addr=metrics_host)
_observability_initialized = True _observability_initialized = True