🧪 Add more debug logs

pkg/cmd/main.go

@@ -42,6 +42,8 @@ func main() {
 	// All the things are optional so when error occurred the server won't crash
 	if err := external.SetupFirebase(viper.GetString("external.firebase.credentials")); err != nil {
 		log.Error().Err(err).Msg("An error occurred when starting firebase communicating...")
+	} else {
+		log.Info().Msg("Successfully setup firebase communication.")
 	}
 
 	// Server

pkg/services/notifications.go

@@ -75,8 +75,13 @@ func NewNotification(
 				Token: subscriber.DeviceID,
 			}
 
-			if _, err = client.Send(ctx, message); err != nil {
+			if response, err := client.Send(ctx, message); err != nil {
 				log.Warn().Err(err).Msg("An error occurred when notify subscriber though firebase FCM...")
+			} else {
+				log.Debug().
+					Str("response", response).
+					Int("subscriber", int(subscriber.ID)).
+					Msg("Notified to subscriber though firebase FCM.")
 			}
 		}
 	}