Initial QSfera import

Server/services/invitations/pkg/service/v0/tracing.go

@@ -0,0 +1,37 @@
+package service
+
+import (
+	"context"
+
+	"github.com/qsfera/server/services/invitations/pkg/invitations"
+	"go.opentelemetry.io/otel/attribute"
+	"go.opentelemetry.io/otel/trace"
+)
+
+// NewTracing returns a service that instruments traces.
+func NewTracing(next Service, tp trace.TracerProvider) Service {
+	return tracing{
+		next: next,
+		tp:   tp,
+	}
+}
+
+type tracing struct {
+	next Service
+	tp   trace.TracerProvider
+}
+
+// Invite implements the Service interface.
+func (t tracing) Invite(ctx context.Context, invitation *invitations.Invitation) (*invitations.Invitation, error) {
+	spanOpts := []trace.SpanStartOption{
+		trace.WithSpanKind(trace.SpanKindServer),
+		trace.WithAttributes(
+			attribute.KeyValue{
+				Key: "invitation", Value: attribute.StringValue(invitation.InvitedUserEmailAddress),
+			}),
+	}
+	ctx, span := t.tp.Tracer("invitations").Start(ctx, "Invite", spanOpts...)
+	defer span.End()
+
+	return t.next.Invite(ctx, invitation)
+}