Json array and qml

[h1ddev]

Hi. I have a little problem. This is the Json:

@{"therainman":{"id":166365,"name":"The Rain Man","profileIconId":642,"summonerLevel":30,"revisionDate":1394650685000}}@

Is a example. The name "therainman" changes when i request another nickname. If i request therainman, the server send to me this json. If i request, for example, c9meteos, changes everything and they send me another thing.

Now, this is the code:

@ TextInput {
id: textInput1
x: 147
y: 42
width: 80
height: 20
text: qsTr("Text Input")
font.pixelSize: 12
focus: true
Keys.onPressed: {
if (event.key == Qt.Key_Return){

                request(textInput1.text)
                return
            }
        }
    }
}

function request(a) {
    var xhr = new XMLHttpRequest();
    xhr.onreadystatechange = function() {
        if (xhr.readyState === XMLHttpRequest.HEADERS_RECEIVED) {
            print('HEADERS_RECEIVED')
        } else if(xhr.readyState === XMLHttpRequest.DONE) {
            print('DONE');
            var obj = JSON.parse(xhr.responseText.toString());
            

            print(obj.a.id)

        }
    }
    xhr.open("GET", "https://prod.api.pvp.net/api/lol/na/v1.3/summoner/by-name/"+a+"?api_key=<api_key>");
    xhr.send();
}@

The problem is here:

print(obj.a.id)

This just not work. If i set print(obj.therainman.id), it works. But this is a value that changes to whatever i want in a textinput, so i can't put this. I don't know how to declare this.

Thanks and sorry for my english!