Streaming static file server based on LevelDB.
Store and serve a nice cat picture at
/files/cat.png.
var Server = require('level-serve');
var level = require('level');
var http = require('http');
var fs = require('fs');
// initialize db and server
var db = level(__dirname + '/.server-db', { valueEncoding: 'binary' });
var server = Server(db);
// store cat
var ws = server.createWriteStream('cat.png');
fs.createReadStream(__dirname + '/cat.png').pipe(ws);
// serve cat
http.createServer(server.handle.bind(server)).listen(8000);
console.log('go to http://localhost:8000' + server.url('cat.png'));ETags are used to save bandwidth and reduce load.
With sublevels you can e.g. give a plugin or a user only access to a part of the database so they can't do anything harmful. The location in the sublevel tree is reflected in the resulting public url.
This concept involves two instances of level-serve.
- One is read only and serves the whole database over http.
- The other one is given to clients / plugins and they can write whatever they want, however only see their own section of the db, their sublevel.
var Server = require('level-serve');
var level = require('level');
var http = require('http');
var SubLevel = require('level-sublevel');
var fs = require('fs');
// initialize the db and give it sublevels
var db = level(__dirname + '/.sublevel-db', { valueEncoding: 'binary' });
SubLevel(db);
// initialize server for sublevel
var server = Server(db.sublevel('cool').sublevel('cats'));
// cat from sublevel "cool"."cats" will be served at /files/cool/cats/white.png
var ws = server.createWriteStream('white.png');
fs.createReadStream(__dirname + '/cat.png').pipe(ws);
// serve cat
var dbServer = Server(db);
http.createServer(dbServer.serve.bind(dbServer)).listen(8000);
console.log('or to http://localhost:8000' + dbServer.url('white.png'));/files/ (sublevels /) file-id
Generate URLs using Server#url.
Make sure that db has been opened with valueEncoding: 'binary' if you want
to serve binary files.
HTTP request handler. Pass this to http.createServer() or express for
example.
If next is passed it will be called when errors happen or a requested file
cannot be found.
Store a file under file-id. If you give file-id an extension it will be
served with the correct mime type.
Retrieve a file stored under file-id.
Store data as file-id. Convenience method that exposes the write stream
in an async api.
Get the url of file-id, respecting sublevels.
With npm do
$ npm install level-serve(MIT)
Copyright (c) 2013 Wayla <data@wayla.com>
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