How to extract data from unknown json file?

Question

i have this json file :

{ "moosy": { "id": 39464441, "name": "Moosy", "profileIconId": 558, "summonerLevel": 30, "revisionDate": 1436887737000 } }

Which is generated by an API. Here is my code to get it :

var http = require('http');
var LolApi = require('leagueapi');
var summonerName = 'moosy';

var server = http.createServer(function(req, res) {
  res.writeHead(200);

      LolApi.init('MY_VERY_PRIVATE_KEY', 'euw');

      LolApi.Summoner.getByName(summonerName, function(err, summoner) {
          if(!err) {

            var profil = JSON.stringify(summoner);
            console.log(profil);
            res.write(profil);

            var summonerId = profil.summonerName.id;
            console.log(summonerId);
            res.write(summonerId);

          }
      })


});
server.listen(8080);

And i'd like to extract into different variables the ID, NAME, ProfileIconId and summonerLevel.

I haven't figured out how with JSON.parse, can you help me out ? :) I'm using Node JS.

Thanks !

Answer 1

Go to http://jsonlint.com/ and validate your JSON. You will see that it is invalid. Maybe that is causing you troubles.

Answer 2

Check the below post for an idea.

Parsing json in node.js

var summonerName = 'moosy';
var profil = { summonerName : { "id": 39464441, "name": "Moosy", "profileIconId": 558, "summonerLevel": 30, "revisionDate": 1436887737000 } };
ID=profil.summonerName.id;
NAME=profil.summonerName.name; 
ProfileIconId=profil.summonerName.profileIconId;
summonerLevel=profil.summonerName.summonerLevel;

Answer 3

When you want to use a string variable (like summonerName ) to access properties of an object, you need to use a different syntax.

Instead of doing this:

var summonerId = profil.summonerName.id;

Do this:

var summonerId = profil[summonerName].id;

The first way expects the object to literally have a property called "summonerName", which does not exist.