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server.js
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server.js
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// Get dependencies
const express = require('express');
const path = require('path');
const http = require('http');
const bodyParser = require('body-parser');
const url = require('url');
const fs = require('fs');
// Get our API routes
const api = require('./routes/api');
const app = express();
// Parsers for POST data
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: false }));
// Point static path to dist
app.use(express.static(path.join(__dirname, 'dist')));
// Set our api routes
app.use('/api', api);
// Catch all other routes and return the index file
app.get('/index', (req, res) => {
res.sendFile(path.join(__dirname, 'dist/index.html'));
});
// Get port from environment and store in Express
const port = process.env.PORT || '3000';
app.set('port', port);
app.use(function (req, res) {
console.log(`${req.method} ${req.url}`);
// parse URL
const parsedUrl = url.parse(req.url);
// extract URL path
let pathname = `.${parsedUrl.pathname}`;
// maps file extention to MIME types
const mimeType = {
'.ico': 'image/x-icon',
'.html': 'text/html',
'.js': 'text/javascript',
'.json': 'application/json',
'.css': 'text/css',
'.png': 'image/png',
'.jpg': 'image/jpeg',
'.wav': 'audio/wav',
'.mp3': 'audio/mpeg',
'.svg': 'image/svg+xml',
'.pdf': 'application/pdf',
'.doc': 'application/msword',
'.eot': 'appliaction/vnd.ms-fontobject',
'.ttf': 'aplication/font-sfnt'
};
fs.exists(pathname, function (exist) {
if(!exist) {
// if the file is not found, return 404
res.statusCode = 404;
res.end(`File ${pathname} not found!`);
return;
}
// if is a directory, then look for index.html
if (fs.statSync(pathname).isDirectory()) {
pathname += '/index.html';
}
// read file from file system
fs.readFile(pathname, function(err, data){
if(err){
res.statusCode = 500;
res.end(`Error getting the file: ${err}.`);
} else {
// based on the URL path, extract the file extention. e.g. .js, .doc, ...
const ext = path.parse(pathname).ext;
// if the file is found, set Content-type and send data
res.setHeader('Content-type', mimeType[ext] || 'text/plain' );
res.end(data);
}
});
});
});
// Create HTTP server
const server = http.createServer(app);
// Listen on provided port, on all network interfaces
server.listen(port, () => console.log(`API running on localhost:${port}`));