chore: update demo server code

Author: kukhariev

examples/server.js

@@ -1,33 +1,44 @@
-const { multipart, tus, uploadx } = require('@uploadx/core');
-const express = require('express');
-const cors = require('cors');
+const url = require('url');
+const { tmpdir } = require('os');
+const { createServer } = require('http');
+const { DiskStorage, Multipart, Tus, Uploadx } = require('@uploadx/core');
 
-const PORT = process.env.PORT || 3002;
-const app = express();
+const port = process.env.PORT || 3002;
 
-function buildRedirectUrl(req) {
-  const { uploadType = 'uploadx' } = req.query;
-  return `/${uploadType}`;
-}
+const directory = `${tmpdir()}/uploadx/`;
+const path = '/files';
+const pathRegexp = new RegExp(`^${path}([/?]|$)`);
 
-const apiRedirect = (req, res, next) => {
-  res.redirect(308, buildRedirectUrl(req));
-  next();
-};
-
-const opts = {
-  directory: 'upload',
-  maxUploadSize: '2GB',
+const storage = new DiskStorage({
+  directory,
+  path,
+  maxUploadSize: '1GB',
   allowMIME: ['video/*', 'image/*'],
-  expiration: { maxAge: '1h', purgeInterval: '10min' },
-  logLevel: process.env.LOG_LEVEL || 'info'
-};
-
-app.use(cors());
-app.use(apiRedirect);
+  logLevel: process.env.LOG_LEVEL || 'info',
+  expiration: { maxAge: '1h', purgeInterval: '30min' }
+});
 
-app.use('/uploadx', uploadx(opts));
-app.use('/tus', tus(opts));
-app.use('/multipart', multipart({ ...opts, maxUploadSize: '100MB' }));
+const upx = new Uploadx({ storage });
+const tus = new Tus({ storage });
+const mpt = new Multipart({ storage });
 
-app.listen(PORT, () => console.log('listening on port:', PORT));
+createServer((req, res) => {
+  const { pathname, query = { uploadType: '' } } = url.parse(req.url, true);
+  if (pathRegexp.test(pathname)) {
+    switch (query.uploadType) {
+      case 'multipart':
+        mpt.handle(req, res);
+        break;
+      case 'tus':
+        tus.handle(req, res);
+        break;
+      default:
+        upx.handle(req, res);
+        break;
+    }
+  } else {
+    res.setHeader('Access-Control-Allow-Origin', '*');
+    res.statusCode = 404;
+    res.end();
+  }
+}).listen(port, () => console.info(`listening on port:  ${port}`));