old_contents: import uuid from 'node-uuid';
  
  const YEAR_IN_MS = 1000 * 60 * 60 * 24 * 365;
  
  /**
   * @method setSessionId
   *
   * simple tracking id for the browser session
   *
   * @param {Object} hapi request object
   * @param {Object} hapi response object
   */
  export const setSessionId = (request, response) => {
  	const sessionId = uuid.v4();
  	response.state(
  		'session_id',
  		sessionId,
  		{ encoding: 'none' }
  	);
  };
  
  /**
   * @method updateTrackId
   *
   * Initialize the trackId for member or anonymous user - the longest-living id
   * we can assigned to a user. Stays in place until login or logout, when it is
   * exchanged for a new trackId
   *
   *  - If the user has a tracking cookie already set, do nothing.
   *  - Otherwise, generate a new uuid and set a tracking cookie.
   *
   * @param {Object} hapi request object
   * @param {Object} hapi response object
   */
  export const updateTrackId = (request, response) => {
  	let trackId = request.state.track_id;
  
  	if (!trackId) {
  		// Generate a new track_id cookie
  		trackId = uuid.v4();
  		response.state(
  			'track_id',
  			trackId,
  			{
  				ttl: YEAR_IN_MS * 20,
  				encoding: 'none'
  			}
  		);
  	}
  	return trackId;
  };
  
  
new_contents: import uuid from 'node-uuid';
  
  const YEAR_IN_MS = 1000 * 60 * 60 * 24 * 365;
  
  /**
   * @method setSessionId
   *
   * simple tracking id for the browser session
   *
   * @param {Object} hapi request object
   * @param {Object} hapi response object
   */
  export const setSessionId = (request, response) => {
  	const sessionId = uuid.v4();
  	response.state(
  		'session_id',
  		sessionId,
  		{ encoding: 'none' }
  	);
  	return sessionId;
  };
  
  /**
   * @method updateTrackId
   *
   * Initialize the trackId for member or anonymous user - the longest-living id
   * we can assigned to a user. Stays in place until login or logout, when it is
   * exchanged for a new trackId
   *
   *  - If the user has a tracking cookie already set, do nothing.
   *  - Otherwise, generate a new uuid and set a tracking cookie.
   *
   * @param {Object} hapi request object
   * @param {Object} hapi response object
   */
  export const updateTrackId = (request, response) => {
  	let trackId = request.state.track_id;
  
  	if (!trackId) {
  		// Generate a new track_id cookie
  		trackId = uuid.v4();
  		response.state(
  			'track_id',
  			trackId,
  			{
  				ttl: YEAR_IN_MS * 20,
  				encoding: 'none'
  			}
  		);
  	}
  	return trackId;
  };
  
  
subject: return sessionId