chore: move the go code into a subfolder

apps/api/internal/telemetry/tracing/tracing.go

@@ -0,0 +1,81 @@
+package tracing
+
+import (
+	"context"
+	"net/http"
+
+	sdk_trace "go.opentelemetry.io/otel/sdk/trace"
+	api_trace "go.opentelemetry.io/otel/trace"
+)
+
+type Tracer interface {
+	NewSpan(ctx context.Context, caller string) (context.Context, *Span)
+	NewClientSpan(ctx context.Context, caller string) (context.Context, *Span)
+	NewServerSpan(ctx context.Context, caller string) (context.Context, *Span)
+	NewClientInterceptorSpan(ctx context.Context, name string) (context.Context, *Span)
+	NewServerInterceptorSpan(ctx context.Context, name string) (context.Context, *Span)
+	NewSpanHTTP(r *http.Request, caller string) (*http.Request, *Span)
+	Sampler() sdk_trace.Sampler
+}
+
+var T Tracer
+
+func Sampler() sdk_trace.Sampler {
+	if T == nil {
+		return sdk_trace.NeverSample()
+	}
+	return T.Sampler()
+}
+
+func NewSpan(ctx context.Context) (context.Context, *Span) {
+	if T == nil {
+		return ctx, CreateSpan(nil)
+	}
+	return T.NewSpan(ctx, GetCaller())
+}
+
+func NewNamedSpan(ctx context.Context, name string) (context.Context, *Span) {
+	if T == nil {
+		return ctx, CreateSpan(nil)
+	}
+	return T.NewSpan(ctx, name)
+}
+
+func NewClientSpan(ctx context.Context) (context.Context, *Span) {
+	if T == nil {
+		return ctx, CreateSpan(nil)
+	}
+	return T.NewClientSpan(ctx, GetCaller())
+}
+
+func NewServerSpan(ctx context.Context) (context.Context, *Span) {
+	if T == nil {
+		return ctx, CreateSpan(nil)
+	}
+	return T.NewServerSpan(ctx, GetCaller())
+}
+
+func NewClientInterceptorSpan(ctx context.Context) (context.Context, *Span) {
+	if T == nil {
+		return ctx, CreateSpan(nil)
+	}
+	return T.NewClientInterceptorSpan(ctx, GetCaller())
+}
+
+func NewServerInterceptorSpan(ctx context.Context) (context.Context, *Span) {
+	if T == nil {
+		return ctx, CreateSpan(nil)
+	}
+	return T.NewServerInterceptorSpan(ctx, GetCaller())
+}
+
+func NewSpanHTTP(r *http.Request) (*http.Request, *Span) {
+	if T == nil {
+		return r, CreateSpan(nil)
+	}
+	return T.NewSpanHTTP(r, GetCaller())
+}
+
+func TraceIDFromCtx(ctx context.Context) string {
+	return api_trace.SpanFromContext(ctx).SpanContext().TraceID().String()
+}