Strong-caching-http-client is an HTTP client with a transparent filesystem-based cache.

$ npm install strong-caching-http-client

The API is similar to the API of request.

var client = require("strong-caching-http-client");

client.request(
  "http://nodejs.org/",
  {
    cache: "/tmp/http-client-cache"
  },
  function(err, resp) {
    // resp is http.IncomingMessage
  }
);

• cache Path to the directory where the client should keep cached data.
• method GET/POST/etc.
• headers Request headers (optional).
• body Request body (optional). Either String, Buffer or Stream.
• maxAge Accept a cached response whose age is no greater that the specified time in seconds. Default: 60.
• maxStale Accept a cached response that has exceeded its expiration time (as set by maxAge option) by no more than the specified time in seconds.