trace

func AddEvent ¶

func AddEvent(ctx context.Context, name string, attrs ...attribute.KeyValue)

AddEvent adds an event to the current span in ctx.

func FiberMiddleware ¶

func FiberMiddleware() fiber.Handler

FiberMiddleware returns a Fiber v3 middleware that creates an OTel span for each request.

The span is named "HTTP {method} {route}" and includes standard HTTP semantic attributes. The span is stored in ctx.Locals() under SpanKey for downstream access. W3C TraceContext is extracted from incoming headers and propagated.

func NewTracerProvider ¶

func NewTracerProvider(lc fx.Lifecycle) (*sdktrace.TracerProvider, error)

NewTracerProvider creates and configures the global OpenTelemetry TracerProvider. It sets up an OTLP HTTP exporter and registers a shutdown hook via fx lifecycle.

func RecordError ¶

func RecordError(ctx context.Context, err error)

RecordError records an error on the current span in ctx.

func SetSpanAttributes ¶

func SetSpanAttributes(ctx context.Context, attrs ...attribute.KeyValue)

SetSpanAttributes sets attributes on the span from the context if one exists.

func SpanFromFiber ¶

func SpanFromFiber(c fiber.Ctx) oteltrace.Span

SpanFromFiber returns the current OTel span from a Fiber context.

func StartSpan ¶

func StartSpan(ctx context.Context, name string, attrs ...attribute.KeyValue) (context.Context, trace.Span)

StartSpan starts a new span with the given name and returns the updated context and span. The span is created as a child of any existing span in ctx.

func Tracer ¶

func Tracer(name string) trace.Tracer

Tracer returns a named tracer from the global TracerProvider. Use this to create spans in packages that don't need their own tracer instance.