Allow user to specify custom field on product at checkout

[MattiaEffendi]

Hi!

I am developing a custom t-shirts store and I would need to let the user specify some text during checkout (the text to print on the shirt), and Medusa doesn't seem to support it out of the box.

Would it be possible to do it via medusa-extender? I imagine i should need to edit the LineItem entity.

If someone could point me in the right direction, that would be great! Thanks!

[MattiaEffendi]

I've solved it in a simpler way than editing Medusa: i just save the customizations in the metadata field of the LineItem when adding it to the cart.

Thanks for the awesome project though!