/**
 * Line data class
 */
class LineData {
  /**
   * Get user data from Line
   * @param {string} accessToken
   * @return {object} user data
   */
  function getUserData(accessToken) {
    var lineAPI = new LineAPI();
    var userProfile = lineAPI.getUserProfile(accessToken);
    var userData = {
      'displayName': userProfile.displayName,
      'userId': userProfile.userId,
      'pictureUrl': userProfile.pictureUrl
    };
    return userData;
  }
}