Nodejs + Express
mkdir project-folder
npm init --yes
// express
npm install expresssrc/server.js
const express = require('express');
const app = express();
//Settings
app.set('port', process.env.PORT || 3000);
//Middlewares
app.use(express.json());
app.use('/',(req,res)=>{
res.send("Hello World form NodeJS express.");
});
app.listen(app.get('port'),()=>{
console.log("Start server on port "+app.get('port'))
})Run server
node src/server.jsNodemon
sudo npm install --g nodemonpackage.json
"dev":"nodemon src/app.js"Run server with nodemon
npm run devController
src/controller.js
const controller = {}
controller.index = (req,res) => {
const data = {
name: "Jhon Smith",
age: 20,
city: 'London'
}
res.json(data);
};
module.exports = controller;
Route
src/routes.js
var express = require('express');
var route = express();
// import controller
const controller = require('./controller')
// create route
route.get('/index',controller.index);
// exprot route
module.exports = route;
src/server.js
const routes = require('./routes');
app.use('/test', routes);
Sequelize
npm install --save sequelizeMySQL
npm install --save mysql2MariaDB
npm install mariadbPostgreSQL
npm install pghttps://sequelize.org/master/manual/dialect-specific-things.html
Database
src/database.js
var Sequelize = require('sequelize');
const database = new Sequelize(
'tutofox', // name database
'admin', // user database
'Mn2020sm#', // password database
{
host: 'localhost',
dialect: 'mysql' // mariadb / sqlite / postgres
}
);
database.sync()
module.exports = database;
Model
src/models/Customers.js
//import sequelize
var Sequelize = require('sequelize');
// importing connection database
var sequelize = require('../database');
var Customers = sequelize.define('customers', {
id: {
type: Sequelize.INTEGER,
primaryKey: true,
autoIncrement: true,
},
name: Sequelize.STRING,
email: Sequelize.STRING,
address: Sequelize.STRING,
phone: Sequelize.BIGINT
});
module.exports = Customers
Controller
src/controller.js
//import sequelize
var Sequelize = require('sequelize');
// imporconst controller = {}
// import model
var Customers = require('./models/Customers');
const { Op } = require("sequelize");
controller.index = (req,res) => {
const data = {
name: "Jhon Smith",
age: 20,
city: 'London'
}
res.json(data);
};
//
controller.list = async (req, res) => {
const response = await Customers.findAll()
.then(function(data){
const res = { success: true, data: data }
return res;
})
.catch(error =>{
const res = { success: false, error: error }
return res;
})
res.json(response);
}
controller.create = async ( req, res) =>{
try {
const response = await Customers.create({
name:"John Smith",
email:"[email protected]",
address:"Cll 100 Malibu",
phone:"123456789"
})
.then(function(data){
const res = { success: true, data: data, message:"created successful" }
return res;
})
.catch(error=>{
const res = { success: false, error: error }
return res;
})
res.json(response);
} catch (e) {
console.log(e);
}
}
controller.update = async ( req, res) =>{
try {
const id = 19;
const response = await Customers.update({
name:"Jhon Milan",
email:"[email protected]",
address:"Cll 100 California",
phone:"123456789"
},{
where: { id: id}
})
.then(function(data){
const res = { success: true, data: data, message:"updated successful" }
return res;
})
.catch(error=>{
const res = { success: false, error: error }
return res;
})
res.json(response);
} catch (e) {
console.log(e);
}
}
controller.get = async ( req, res) =>{
try {
const { id } = req.params;
const response = await Customers.findAll({
where: { id: id}
// where: { id: [ 1, 2, 4 ] }
// like: { name: "Milan" }
// where: {
// name: {
// [Op.like]: '%Milan%'
// }
// }
})
.then( function(data){
const res = { success: true, data: data }
return res;
})
.catch(error => {
const res = { success: false, error: error }
return res;
})
res.json(response);
} catch (e) {
console.log(e);
}
}
controller.delete = async ( req, res) =>{
try {
const { id } = req.params;
const response = await Customers.destroy({
where: { id: id }
})
.then( function(data){
const res = { success: true, data: data, message:"Deleted successful" }
return res;
})
.catch(error => {
const res = { success: false, error: error }
return res;
})
res.json(response);
} catch (e) {
console.log(e);
}
}
module.exports = controller;
ting connection database
var sequelize = require('../database');
var Customers = sequelize.define('customers', {
id: {
type: Sequelize.INTEGER,
primaryKey: true,
autoIncrement: true,
},
name: Sequelize.STRING,
email: Sequelize.STRING,
address: Sequelize.STRING,
phone: Sequelize.BIGINT
});
module.exports = Customers
Route
src/routes.js
var express = require('express');
var route = express();
// import controller
const controller = require('./controller')
// create route
route.get('/index',controller.index);
route.get('/list',controller.list);
route.get('/create',controller.create);
route.get('/update',controller.update);
route.get('/get/:id',controller.get);
route.get('/delete/:id',controller.delete);
// exprot route
module.exports = route;
