Express - Node Backend Studies

_References.md

NodeJS Reference Guide

Tutorials

• https://steemit.com/graphql/@alien35/creating-a-scalable-api-using-node-graphql-mysql-and-knex

Express

• https://expressjs.com/en/starter/

Packages

• Server
  • express
  • nodemon
• Request
  • body-parser
  • express-validator
• Session
  • cookie-session
  • passport
  • express-session
  • uuid
• Template
  • twing
  • marko
  • ejs
• Cluster
  • cluster
• Autoload files
  • consign
• Database
  • mysql
  • sqlite3
  • pg
  • mongo
  • knex
• Cache
  • memcached
• Log
  • winston

Express.md

Express.js

Installing

$ npm install express --save

Hello World

// index.js
const express = require('express')
const app = express()
const port = 3000

app.get('/', (req, res) => res.send('Hello World!'))

app.listen(port, () => console.log(`Example app listening on port ${port}!`))

Than run $ node index.js

Express generator

https://expressjs.com/en/starter/generator.html

Installing Express generator: $ npm install -g express-generator Creating a new project: $ express myapp && cd myapp && npm install

Routing

https://expressjs.com/en/guide/routing.html

// Basic routing
app.get('/', function (req, res) {
  res.send('Hello World!')
})

// Parameters
app.get('/users/:userId/books/:bookId', function (req, res) {
  res.send(req.params)
})
// Route path: /users/:userId/books/:bookId
// Request URL: http://localhost:3000/users/34/books/8989
// req.params: { "userId": "34", "bookId": "8989" }