使用Node.js调用JSON API

回调中的

res

http.get()

var url = 'http://graph.facebook.com/517267866/?fields=picture';http.get(url, function(res){    var body = '';    res.on('data', function(chunk){        body += chunk;    });    res.on('end', function(){        var fbResponse = JSON.parse(body);        console.log("Got a response: ", fbResponse.picture);    });}).on('error', function(e){      console.log("Got an error: ", e);});