diff --git a/middlewareNode/README.md b/middlewareNode/README.md
new file mode 100644
index 00000000..81847c23
--- /dev/null
+++ b/middlewareNode/README.md
@@ -0,0 +1,7 @@
+# Middleware Node
+
+## Where code goes
+
+Route files handle HTTP only. Reusable or complex logic goes in `utils/` or a
+domain `service.js` (for example, `badges/service.js`). There is no
+`controllers/` layer.
diff --git a/middlewareNode/src/controllers/meetings.js b/middlewareNode/src/controllers/meetings.js
deleted file mode 100644
index e69de29b..00000000
diff --git a/middlewareNode/src/routes/categorys.js b/middlewareNode/src/routes/categorys.js
index cb6170d2..a6e58b60 100644
--- a/middlewareNode/src/routes/categorys.js
+++ b/middlewareNode/src/routes/categorys.js
@@ -11,8 +11,6 @@
 
 const express = require("express");
 const router = express.Router();
-const crypto = require("crypto");
-const { check, validationResult } = require("express-validator");
 const categorys = require("../models/categorys");
 
 /**