Is it possible to remove/omit fields from a Schema?

[justin0mcateer]

Sometimes we have derived types where we use the Omit utility type. This is often where you have some canonical type and you need some version where certain fields are not provided, for example 'id' or 'updatedAt' where those two fields are automatically generated and not accepted in the input from the client. Particularly when there are multiple derived types, it is easier to start with the full/canonical type then remove/omit certain fields to created the derived types.

Could be my ignorance, but I cannot see a way to accomplish this with Rescript Schema currently.

For reference Zod offers both 'pick' and 'omit' functions to provide this capability.

[DZakh]

It's not currently possible, and I'm not sure it's even theoretically possible. It's probably implementable, but it needs some work.

There's https://github.com/DZakh/rescript-schema/blob/main/docs/rescript-usage.md#sflatten in ReScript API, which I can expose to TS API. This was designed to solve the case of reusing object schema shapes.