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server.js
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server.js
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require('dotenv').config();
const express = require('express');
const bodyParser = require('body-parser');
const cookieParser = require('cookie-parser');
const connectDB = require('./handlers/db-connector');
const routes = require('./routes/routes');
var app = express();
app.use(bodyParser.urlencoded({ extended: false }));
app.use(bodyParser.json());
app.use(express.static('public'));
app.use(cookieParser());
var server;
// connect to db
connectDB((err, connection) => {
if(err) {
return console.log('error in database connection');
}
this.connection = connection;
console.log('database connected. connection id: ', connection.threadId);
// send all route requests to routes
routes(app, __dirname, connection);
// if no route found, show 404 page
app.use((req, res) => {
res.sendFile(__dirname + '/public/404.html');
});
// start the server
server = app.listen(process.env.PORT, () => {
console.log(`server is running and up at http://localhost:${server.address().port}`);
});
});
// function to handle server shutdown
const shutdown = () => {
// close the db connection
this.connection.end(err => {
if(err) {
return console.log('error in database connection close');
}
console.log('database disconnected');
// shutdown the server
server.close();
console.log('server shutted down');
});
};
// if `Ctrl + c` is pressed for stop node process, shutdown server
process.on('SIGINT', shutdown);