getMemberInfo.java

    public void sendGetRequest(String urlString, String accessToken) throws Exception {
        URL url = new URL(urlString);
        HttpsURLConnection con = (HttpsURLConnection) url.openConnection();
        con.setRequestMethod("GET");
        con.setRequestProperty("Authorization", "Bearer " + accessToken);
        con.setRequestProperty("cache-control", "no-cache");
        con.setRequestProperty("X-Restli-Protocol-Version", "2.0.0");
        BufferedReader br = new BufferedReader(new InputStreamReader(con.getInputStream()));
        StringBuilder jsonString = new StringBuilder();
        String line;
        while ((line = br.readLine()) != null) {
            jsonString.append(line);
        }
        JSONObject jsonObject = new JSONObject(jsonString.toString());
        Log.d("Complete json object", jsonObject.toString());
        try {
            linkedInUserId = jsonObject.getString("id");
            String country = jsonObject.getJSONObject("firstName").getJSONObject("preferredLocale").getString("country");
            String language = jsonObject.getJSONObject("firstName").getJSONObject("preferredLocale").getString("language");
            String getFirstnameKey = language + "_" + country;
            linkedInUserFirstName = jsonObject.getJSONObject("firstName").getJSONObject("localized").getString(getFirstnameKey);
            linkedInUserLastName = jsonObject.getJSONObject("firstName").getJSONObject("localized").getString(getFirstnameKey);
            linkedInUserProfile = jsonObject.getJSONObject("profilePicture").getJSONObject("displayImage~").getJSONArray("elements").getJSONObject(0).getJSONArray("identifiers").getJSONObject(0).getString("identifier");

        } catch (JSONException e) {
            e.printStackTrace();
        }

    }