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index.js
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index.js
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const express = require('express');
const methodOverride = require('method-override');
const pg = require('pg');
// Initialise postgres client
const configs = {
user: 'akira',
host: '127.0.0.1',
database: 'pokemons',
port: 5432
};
const pool = new pg.Pool(configs);
pool.on('error', function (err) {
console.log('idle client error', err.message, err.stack);
});
/**
* ===================================
* Configurations and set up
* ===================================
*/
// Init express app
const app = express();
app.use(methodOverride('_method'));
app.use(express.urlencoded({
extended: true
}));
// Set react-views to be the default view engine
const reactEngine = require('express-react-views').createEngine();
app.set('views', __dirname + '/views');
app.set('view engine', 'jsx');
app.engine('jsx', reactEngine);
/**
* ===================================
* Routes
* ===================================
*/
app.get('/pokemon/:id', (request, response) => {
// query database for all pokemon
// respond with HTML page displaying all pokemon
//response.send('workz!');
const queryString = 'SELECT * FROM pokemon WHERE id='+request.params.id;
pool.query(queryString, (err, res) => {
if (err) {
console.error('query error:', err.stack);
response.send('error');
} else {
console.log('query result:', res.rows[0]);
// redirect to home page
response.send(res.rows);
}
});
});
app.get('/', (request, response) => {
// query database for all pokemon
// respond with HTML page displaying all pokemon
//response.send('workz!');
const queryString = 'SELECT * FROM pokemon';
pool.query(queryString, (err, res) => {
if (err) {
console.error('query error:', err.stack);
response.send('error');
} else {
//console.log('query result:', res);
// redirect to home page
response.render('home', {pokemon: res.rows});
}
});
});
app.get('/new', (request, response) => {
// respond with HTML page with form to create new pokemon
response.render('New');
});
app.get('/edit/:id', (request, response) => {
// respond with HTML page with form to create new pokemon
const queryString = 'SELECT * FROM pokemon WHERE id='+request.params.id;
pool.query(queryString, (err, res) => {
if (err) {
console.error('query error:', err.stack);
response.send('error');
} else if(res.rows.length > 0) {
console.log('query result:', res.rows[0]);
response.render('Edit', {pokemon: res.rows[0]});
}else{
response.send("doesn't exist");
}
});
});
app.post('/find', (request, response) => {
// respond with HTML page with form to create new pokemon
// how to see everything in the DB:
// ' OR 1=1 --
var queryString = "SELECT * FROM pokemon WHERE name='"+request.body.name + "'";
//const values = [request.body.name, request.body.height];
console.log( queryString );
//pool.query(queryString, values, (err, res) => {
pool.query(queryString, (err, res) => {
if (err) {
console.log( queryString );
console.error('query error:', err.stack);
response.send('error');
} else if(res.rowCount > 0) {
console.log('query result:', res.rows[0]);
response.send(res.rows);
}else{
response.send("doesn't exist");
}
});
});
app.post('/pokemons', (req, response) => {
let params = req.body;
var queryString = 'INSERT INTO pokemon(name, height) VALUES($1, $2)'
const values = [params.name, params.height];
pool.query(queryString, values, (err, res) => {
if (err) {
console.error('query error:', err.stack);
response.send('error');
} else {
//console.log('query result:', res);
// redirect to home page
//response.redirect('/');
response.send( res.rows )
}
});
});
/**
* ===================================
* Listen to requests on port 3000
* ===================================
*/
app.listen(3000, () => console.log('~~~ Tuning in to the waves of port 3000 ~~~'));