Download-server NPM

Node.js public/private download server

npm install --save download-server

This is a small library and app to implement a file download server that is capable of serving public and private files.

Private files cannot be downloaded unless requested via a URL that contains a valid temporary download key. Temporary download keys are generated via an API call.

This download server can run as a standalone app or be included as a library in any Node.js app.

The following options are available:

Option	Default value (standalone only)	Description
`apiKey`		Shared secret key for requesting new download links to be generated
`publicDir`		The local directory containing publicly downloadable files
`publicPath`	`"/public"`	The base path of publicly downloadable file URLs
`privateDir`		The local directory containing privately downloadable files
`privatePath`	`"/private"`	The base path of privately downloadable file URLs
`port`	`3000`	The port on which the server runs
`ttl`	`300`	The number of seconds from creation after which links expire

If publicDir is not specified, this server will not serve public files. If privateDir and/or apiKey are not specified, this server will not serve private files, nor will it take requests to generate temporary download keys.

Here's an example of running this as a standalone app:

node main \
    --apiKey secret123
    --publicDir /path/to/public
    --privateDir /path/to/private

This starts an instance that serves public and private files on port 3000 with a temporary download key expiry of 300 seconds.

Here's an example of embedding this in a Node.js app:

var downloadServer = require('download-server');

var _server = null;

downloadServer.start({
    apiKey: 'secret123',
    publicDir: '/path/to/public',
    publicPath: '/public',
    privateDir: '/path/to/private',
    privatePath: '/private',
    port: 3000,
    ttl: 300
}, function(server) {
    _server = server;
    console.log('Download server started on port 3000');
});

// ...

// Stop the download server
downloadServer.stop(_server);