How do i get Instagram Code for Oauth authorisation?

Question

I am making desktop app in java for instagram right now and i don't know how to get code from callback url. My app is desktop so my REDIRECT-URI is http://instagram.com. So in my app i send a request to https://api.instagram.com/oauth/authorize/?client_id=CLIENT-ID&redirect_uri=REDIRECT-URI&response_type=code and get redirected to instagram.com?code=CODE. And also forgot to mention, I get a code once by my hands a i gave all permissions. So now then i make request i redirected straightly to URL with code. How do i get code from callback uri in program in java? This is my code:

static void GetCode()
{
    try {
        String url = "https://api.instagram.com/oauth/authorize/?client_id=" + ClientId + "&redirect_uri=" + BackUri + "&response_type=code&scope=likes+comments+relationships";
        HttpClient client = new DefaultHttpClient();
        HttpGet request = new HttpGet(url);
        HttpResponse response = client.execute(request);
        BufferedReader rd = new BufferedReader(
                new InputStreamReader(response.getEntity().getContent()));

        StringBuffer result = new StringBuffer();
        String line = "";
        while ((line = rd.readLine()) != null) {
            result.append(line);
        }

        System.out.println(result.toString());

    }
    catch(Exception e)
    {
        System.out.print("GET CODE ERROR->"+e.toString());
    }

}

Answer 1

Change REDIRECT_URI to http://localhost. So the actual 'redirection' code should be done on your side. And you can parse value of argument code. Also look at the answers to this question. This will help you to grab URI with the code.