foo.js

var request = require('request');
var zlib = require('zlib');

var websiteRequest = request('http://oliverjash.me/', {
  headers: {
    'Accept-Encoding': 'gzip,deflate'
  }
});

// Request,  `http.ClientRequest`   – writable stream, emits a `response` event
// containing a `http.IncomingMessage`
// Response, `http.IncomingMessage` – readable stream, emits a `readable` event

websiteRequest
  .on('response', function (response) {
    // Uncompress the response (if compressed to begin with) into pipe into
    // a writable stream.

    var contentEncoding = response.headers['content-encoding'];
    var output = response;

    // TODO: Use `_.contains`
    if (['gzip', 'deflate'].indexOf(contentEncoding) !== -1) {
      output = response.pipe(zlib.createUnzip());
    }

    var responseBody = '';
    output.setEncoding('utf8');
    output
      .on('data', function (data) {
        responseBody += data;
      })
      .on('end', function () {
        console.log(responseBody);
      });
});