diff --git a/main.go b/main.go
index bbd1d55..a996087 100644
--- a/main.go
+++ b/main.go
@@ -115,7 +115,13 @@ func _newHandlerPostAPIV1EventsSlack(cfg Config) http.HandlerFunc {
 			return
 		}
 
-		log.Printf("slack event: %s", b)
+		m, err := ParseSlack(b)
+		if err != nil {
+			http.Error(w, err.Error(), http.StatusBadRequest)
+			return
+		}
+
+		log.Printf("message: %+v", m)
 		http.Error(w, "not impl", http.StatusNotImplemented)
 	}
 }