Gat

An HTTP caching server

Features

• Supports http and https protocols
• Configurable limit for the cache - coming soon!
• Automatically deletes the resouce not found on the remote host
• Automatically reclaims the disk space based on LRU - coming soon!
• Saves bandwidth and time

Installation

$ npm i gat -g

Usage

Standalone

$ gat -h

  Usage: gat [options] [command]

  Commands:

    config                 show config
    start                  start gat
    stop                   stop gat
    restart                restart gat
    empty                  empty cache
    *                      unknown command

  Options:

    -h, --help     output usage information
    -V, --version  output the version number
    -e, --edit     edit config

$ gat start
info: starting gat on port 1947

$ gat config      # show config

$ gat -e config   # edit config

Request

curl -O "http://localhost:1947/?protocol=https&hostname=dl.dropboxusercontent.com&resource=/s/j4ev9qfa3wz34xl/walle_128.png"

Response

HTTP/1.1 200 OK
server: Gat/0.0.9
date: Sun, 10 Mar 2013 17:31:27 GMT
content-type: image/png
content-length: 817701
connection: keep-alive
x-robots-tag: noindex,nofollow
accept-ranges: bytes
x-server-response-time: 523
x-dropbox-request-id: 7914ee643fdfb67b
pragma: public
cache-control: max-age=0

As a node module

var os = require("os");
var fs = require("fs");
var path = require("path");
var Gat = require("../gat").Gat;

var FILE = "walle.png";
var FILE_PATH = path.join(os.tmpDir(), FILE);

Gat.setConfig({
  port: 3737
});

var gat = new Gat("https", "dl.dropbox.com");
gat.get("/u/11522638/" + FILE, null, function(err, stream) {
  if (err) {
    return console.error(err);
  }
  stream.pipe(fs.createWriteStream(FILE_PATH));
  stream.on("close", function() {
    console.info("File saved: " + FILE_PATH);
  });
});