ADD: create a new category logic

components/category/categoryService.js

@@ -4,3 +4,8 @@ const AppError = require('../../globalErrorHandler/AppError')
 module.exports.getAllCategories = async () => {
     return Category.find().populate('parentId')
 }
+
+module.exports.createCategory = async (data) => {
+    const category = Category.create(data, null)
+    return category
+}