cmd/serverFunc.go

@@ -39,7 +39,10 @@ func uploadFile(w http.ResponseWriter, r *http.Request) {
 		log.Printf("Error happened opening file: %v\n", err)
 	}
 
-	io.Copy(f, file)
+	_, err = io.Copy(f, file)
+	if err != nil {
+		log.Printf("Error happened writing file: %v\n", err)
+	}
 }
 
 func server() {