voxblog/apps/api/examples/downloads/index.js

41 lines
1.2 KiB
JavaScript

'use strict'
/**
* Module dependencies.
*/
var express = require('../../');
var path = require('node:path');
var app = module.exports = express();
// path to where the files are stored on disk
var FILES_DIR = path.join(__dirname, 'files')
app.get('/', function(req, res){
res.send('<ul>' +
'<li>Download <a href="/files/notes/groceries.txt">notes/groceries.txt</a>.</li>' +
'<li>Download <a href="/files/amazing.txt">amazing.txt</a>.</li>' +
'<li>Download <a href="/files/missing.txt">missing.txt</a>.</li>' +
'<li>Download <a href="/files/CCTV大赛上海分赛区.txt">CCTV大赛上海分赛区.txt</a>.</li>' +
'</ul>')
});
// /files/* is accessed via req.params[0]
// but here we name it :file
app.get('/files/*file', function (req, res, next) {
res.download(req.params.file.join('/'), { root: FILES_DIR }, function (err) {
if (!err) return; // file sent
if (err.status !== 404) return next(err); // non-404 error
// file for download not found
res.statusCode = 404;
res.send('Cant find that file, sorry!');
});
});
/* istanbul ignore next */
if (!module.parent) {
app.listen(3000);
console.log('Express started on port 3000');
}