Node.js 中使用 request 请求 GBK 页面

gistfile1.txt

var request = require('request');
var Iconv = require('iconv').Iconv;
var iconv = new Iconv('GBK', 'UTF-8//TRANSLIT//IGNORE');

request.get({
    url: 'http://foo.bar',
    encoding: null
}, function(err, res, body) {
    console.log(iconv.convert(body).toString());
});