public static String getJson(String fileName, Context context){
        StringBuilder stringBuilder = new StringBuilder();
        try {
            InputStream is = context.getAssets().open(fileName);
            BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(is));
            String line;
            while ((line=bufferedReader.readLine()) != null){
                stringBuilder.append(line);
            }
        } catch (IOException e) {
            e.printStackTrace();
        }

        return stringBuilder.toString();
    }