Add Property to Object that is returned by Sequelize FindOne

Question

I am trying to add a property to a sequelize instance before passing it back to the client.

router.get(\'/cats/1\', function (req, res) {
    Cat.findOne({w         


        

Answer 1

The following works for sequelize v4.

...
const order = Order.findOne(criteria);
order.setDataValue('additionalProperty', 'some value');
...

Hope this helps. It's a bit late but in case people are still looking for answers.