mirror of
https://github.com/SamyRai/tercul-backend.git
synced 2025-12-27 05:11:34 +00:00
3bcd8d08f5
This commit introduces a comprehensive observability stack to the application, addressing a key objective from the TODO list. The following features have been implemented: - **Centralized Logging:** Replaced the existing custom logger with `zerolog` for structured, leveled, and performant logging. The logger is configured to output human-friendly console logs in development and JSON logs in production. - **Distributed Tracing:** Integrated OpenTelemetry to provide distributed tracing capabilities. A new middleware has been added to create spans for all incoming HTTP requests, and the trace context is propagated. - **Prometheus Metrics:** Added Prometheus metrics to monitor HTTP request latency and total request counts. A new `/metrics` endpoint is exposed on port 9090 to serve these metrics. - **Request ID:** Implemented a middleware to add a unique request ID to every incoming request and response, improving traceability. The new observability components are encapsulated in the `internal/observability` package, and the existing `internal/platform/log` package has been refactored to be a backward-compatible wrapper around the new logger. The main application entry point (`cmd/api/main.go`) has been updated to initialize and gracefully shut down the new observability components.
41 lines
1.2 KiB
Go
41 lines
1.2 KiB
Go
package observability
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import (
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"context"
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"go.opentelemetry.io/otel"
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"go.opentelemetry.io/otel/exporters/stdout/stdouttrace"
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"go.opentelemetry.io/otel/propagation"
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"go.opentelemetry.io/otel/sdk/resource"
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sdktrace "go.opentelemetry.io/otel/sdk/trace"
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semconv "go.opentelemetry.io/otel/semconv/v1.21.0"
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)
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// TracerProvider returns a new OpenTelemetry TracerProvider.
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func TracerProvider(serviceName, environment string) (*sdktrace.TracerProvider, error) {
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exporter, err := stdouttrace.New(stdouttrace.WithPrettyPrint())
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if err != nil {
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return nil, err
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}
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res := resource.NewWithAttributes(
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semconv.SchemaURL,
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semconv.ServiceNameKey.String(serviceName),
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semconv.DeploymentEnvironmentKey.String(environment),
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)
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tp := sdktrace.NewTracerProvider(
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sdktrace.WithBatcher(exporter),
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sdktrace.WithResource(res),
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)
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otel.SetTracerProvider(tp)
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otel.SetTextMapPropagator(propagation.NewCompositeTextMapPropagator(propagation.TraceContext{}, propagation.Baggage{}))
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return tp, nil
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}
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// ShutdownTracerProvider gracefully shuts down the tracer provider.
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func ShutdownTracerProvider(ctx context.Context, tp *sdktrace.TracerProvider) error {
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return tp.Shutdown(ctx)
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} |