code: func (c *TrackerController) Show(ctx *app.ShowTrackerContext) error {
  	var trkr *remoteworkitem.Tracker
  	err := application.Transactional(c.db, func(appl application.Application) error {
  		var err error
  		trkr, err = appl.Trackers().Load(ctx.Context, ctx.ID)
  		if err != nil {
  			log.Error(ctx, map[string]interface{}{
  				"err":        err,
  				"tracker_id": ctx.ID,
  			}, "unable to load the tracker by ID")
  		}
  		return err
  	})
  	if err != nil {
  		return jsonapi.JSONErrorResponse(ctx, err)
  	}
  	result := &app.TrackerSingle{
  		Data: ConvertTracker(ctx.Request, *trkr),
  	}
  	return ctx.OK(result)
  }
docs: // Show runs the show action.