nodeGetJson.js

var http = require('http');
// var buffer = require('buffer');
var url = "/ws/Data/AQX/?$orderby=SiteName&$skip=0&$top=1000&format=json"


var Options = {
  R1: {
    hostname: 'opendata.epa.gov.tw',
    path: url,
    method: 'GET',
    headers: {
      'Content-Type': 'application/json',
      'Upgrade-Insecure-Requests': 1,
      'User-Agent': "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/45.0.2454.85 Safari/537.36",
    }
  }
};

var req = http.request(Options.R1 , function(res){
	// console.log(res);
	var body = '';
	res.on('data' , function(chunk){
		// console.dir(chunk);
		var str = new Buffer(chunk);
		body+= str;

	})
	res.on('end' , function(){
		console.log('end');
		console.log(body);
	})
})

req.end();