code: func (h *Handler) GetObject(
  	tkn, objectType, id string) (json.RawMessage, error) {
  	logger := h.logger.Add("method", "GetObject",
  		"type", objectType, "id", id)
  
  	if !h.token.Check(tkn) {
  		logger.Warn("access denied")
  		return nil, ErrAccessDenied
  	}
  
  	table, ok := objectTypes[objectType]
  	if !ok {
  		logger.Warn(ErrBadObjectType.Error())
  		return nil, ErrBadObjectType
  	}
  
  	obj, err := h.db.FindByPrimaryKeyFrom(table, id)
  	if err != nil {
  		logger.Error(err.Error())
  		return nil, ErrObjectNotFound
  	}
  
  	raw, err := json.Marshal(obj)
  	if err != nil {
  		logger.Error(err.Error())
  		return nil, ErrInternal
  	}
  
  	return raw, nil
  }
docs: // GetObject finds object in a database by id,
  // then returns an object on raw JSON format.