load URL and load JSON file in servi.js

servi-load-stuff.js

var servi = require('servi');
var app = new servi(true);
var http = require('http');
start();

route('/', showHome);

function showHome(request){
	// load a local JSON file
	loadJSON('weather.json',function(data){
		console.log("____json from file_____");
		console.log(data);
	});

	// load JSON from a URL
	var myUrl = "http://api.openweathermap.org/data/2.5/weather?q=London,uk";
	loadJSON(myUrl,function(data){
		console.log("____json from url_____");
		console.log(data);
	});

	request.respond('testing');
	
}

// load text from a url
function loadURL(url,onSuccess){
	var str = '';
	http.get(url, function(res) {
	  res.on("data", function(chunk) {
 	     str += chunk.toString();
 	  });
 	  res.on("end",function(){
 	  	onSuccess(str);
 	  });
	}).on('error', function(e) {
	  console.log("Got error: " + e.message);
	  // use an onError() callback here?
	});
}

// takes a file path or a URL
function loadJSON(path,callback){
	// is it a URL ?
	if (path.indexOf('http') === 0){
		loadURL(path, function(res){
			callback(JSON.parse(res));
		});		
	} else { // assume it's a file
		callback(JSON.parse(loadFile(path)));
	}
}

weather.json

{
  "coord": {
    "lon": -74.01,
    "lat": 40.71
  },
  "sys": {
    "type": 1,
    "id": 1980,
    "message": 0.115,
    "country": "US",
    "sunrise": 1416311222,
    "sunset": 1416346537
  },
  "weather": [
    {
      "id": 500,
      "main": "Rain",
      "description": "light rain",
      "icon": "10n"
    },
    {
      "id": 701,
      "main": "Mist",
      "description": "mist",
      "icon": "50n"
    },
    {
      "id": 300,
      "main": "Drizzle",
      "description": "light intensity drizzle",
      "icon": "09n"
    }
  ],
  "base": "cmc stations",
  "main": {
    "temp": 47.84,
    "pressure": 1000,
    "humidity": 93,
    "temp_min": 42.8,
    "temp_max": 57.2
  },
  "wind": {
    "speed": 3.24,
    "deg": 270
  },
  "clouds": {
    "all": 90
  },
  "dt": 1416267540,
  "id": 5128581,
  "name": "New York",
  "cod": 200
}