如何在http请求中解析参数并在节点中获取响应

Question

我想通过HTTP请求得到结果，我想知道如何解析post参数并得到结果。

var http    = require("http");
var email   = "email";
var password  = '12345';       
var response_string='010000000157065146a6b32b224b87d47c1b0283b1ae2fa5bd4f9af9ebc45928110f87fbae00000000700';
var post_params="jsonrpc= 1.0&id=curltest&method=decoderawtransaction&params="+response_string;

http.request({
    host: "127.0.0.1",
    port:"8332",
    path:"/path",
    method: "POST",
    headers: {                   
        "Authorization": "Basic " + new Buffer( email + ":" + password ).toString('base64')
        }
    }, function(res){
        var response = "";

        res.on('data', function(chunk){
            response += chunk;
            console.log("res"+response);
        });

        res.on('end',function(){
            response = JSON.parse(response);
            console.log("res1"+response);                   
        });
}).end(); 

如何在请求中解析post_params变量。