Only try to send a result back if at least one result came back

main.go

@@ -71,6 +71,7 @@ func main() {
 		if result, err := c.Geocode(context.Background(), r); err != nil {
 			log.Fatalf("fatal error: %s", err)
 		} else {
+			if len(result) > 0 {
 				l := location{
 					Name:         e.Name,
 					City:         e.City,
@@ -88,6 +89,7 @@ func main() {
 				}
 			}
 		}
+	}
 
 	if _, err := sc.QueueSubscribe("DanceHall.Created", "geo-service", mcb, stan.StartWithLastReceived(), stan.DurableName("geo-service")); err != nil {
 		_ = sc.Close()