👌 IMPROVE: getPagesHelper refactoring code API

api/assets/utils/getPagesHelper.js

@@ -0,0 +1,34 @@
+const errorHandling     = require('../utils/errorHandling');
+const { serverError }   = require('../config/errors');
+const helperQueryNumber = require('../utils/helperQueryNumber');
+
+const DEFAULT_OPTIONS = {
+    order: [['createdAt', 'DESC']]
+};
+
+/**
+ * @description Permet de faire un système de pagination sur un model Sequelize
+ * @param {Object} Object { req, res, next }
+ * @param {*} Model Model Sequelize
+ * @param {Object} options Options avec clause where etc.
+ */
+async function getPagesHelper({ req, res, next }, Model, options = DEFAULT_OPTIONS) {
+    const page   = helperQueryNumber(req.query.page, 1);
+    const limit  = helperQueryNumber(req.query.limit, 10);
+    const offset = (page - 1) * limit;
+    try {
+        const result = await Model.findAndCountAll({
+            limit, 
+            offset, 
+            ...options
+        });
+        const { count, rows } = result;
+        const hasMore         = (page * limit) < count;
+        return res.status(200).json({ totalItems: count, hasMore, rows });
+    } catch (error) {
+        console.log(error);
+        return errorHandling(next, serverError);
+    }
+}
+
+module.exports = getPagesHelper;