fix(logger): check span context

logging/logrus/hook.go

@@ -56,15 +56,21 @@ func (h *TraceHook) Fire(entry *logrus.Entry) error {
 
 	span := trace.SpanFromContext(entry.Context)
 
-	// non recording spans do not support modifying
-	if !span.IsRecording() {
+	// check span context
+	spanContext := span.SpanContext()
+	if !spanContext.IsValid() {
 		return nil
 	}
 
 	// attach span context to log entry data fields
-	entry.Data[traceIDKey] = span.SpanContext().TraceID()
-	entry.Data[spanIDKey] = span.SpanContext().SpanID()
-	entry.Data[traceFlagsKey] = span.SpanContext().TraceFlags()
+	entry.Data[traceIDKey] = spanContext.TraceID()
+	entry.Data[spanIDKey] = spanContext.SpanID()
+	entry.Data[traceFlagsKey] = spanContext.TraceFlags()
+
+	// non recording spans do not support modifying
+	if !span.IsRecording() {
+		return nil
+	}
 
 	if entry.Level <= h.cfg.errorSpanLevel {
 		// set span status