JAVASCRIPT

Basic Routing Express.js

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

Express Routers

const birds = require('./birds')

// ...

app.use('/birds', birds)

nodejs express routing get

const express = require('express');
const mysql = require('mysql');

// Connecting with database
const db = mysql.createConnection({
  host: 'localhost',					// The host you're using
  user: 'yourusername',					// The username you use to enter database
  password: 'yourpassword'				// Your password to your username
});

db.connect((error) => {
  if(error) {
    throw error;
  }
  console.log('MySQL Connected');
});

const app = express();

app.get('yourroute', (request, response) => {
  let sql = 'SELECT * FROM yourtable';
  let query = db.query(sql, (error, result) => {
    if(error) {
      throw error;
    }
    console.log(result)					// Use the result you get back here
  })
});

app.listen('3000', () => {
  console.log('Server is listening on port 3000');
});

nodejs: router by use express and path package

// use Express 
// use Path

const express = require('express');
const path = require('path');

const app = express();


// ###Create Public folder
app.use(express.static('./public'));




app.get('/', (req, res) => {
    res.sendFile(path.resolve(__dirname, './navbar-app/index.html'));
});


app.all('*', (req, res) => {
    res.status(404).send('Resource not founded');
})


app.listen(5000, () => {
    console.log('Server is listening on PORT: 5000');
});

express routing

app.get('/example/b', function (req, res, next) {
  console.log('the response will be sent by the next function ...')
  next()
}, function (req, res) {
  res.send('Hello from B!')
})

express basic routing syntax

app.METHOD(PATH, HANDLER)