whole structure done based on sequelize reccommendation

app/controllers/donors.controller.js

@@ -0,0 +1,50 @@
+const db = require('../config/db.config.js');
+const Donors = db.donors;
+ 
+// Post a Customer
+exports.create = (req, res) => {	
+	// Save to MySQL database
+	Donors.create({  
+	  firstname: req.body.firstname,
+	  lastname: req.body.lastname,
+	  age: req.body.age
+	}).then(customer => {		
+		// Send created customer to client
+		res.send(customer);
+	});
+};
+ 
+// FETCH all Customers
+exports.findAll = (req, res) => {
+	Donors.findAll().then(customers => {
+	  // Send all customers to Client
+	  res.send(customers);
+	});
+};
+ 
+// Find a Customer by Id
+exports.findById = (req, res) => {	
+	Donors.findById(req.params.customerId).then(customer => {
+		res.send(customer);
+	})
+};
+ 
+// Update a Customer
+exports.update = (req, res) => {
+	const id = req.params.customerId;
+	Donors.update( { firstname: req.body.firstname, lastname: req.body.lastname, age: req.body.age }, 
+					 { where: {id: req.params.customerId} }
+				   ).then(() => {
+					 res.status(200).send("updated successfully a customer with id = " + id);
+				   });
+};
+ 
+// Delete a Customer by Id
+exports.delete = (req, res) => {
+	const id = req.params.customerId;
+	Donors.destroy({
+	  where: { id: id }
+	}).then(() => {
+	  res.status(200).send('deleted successfully a customer with id = ' + id);
+	});
+};