2 way transformations possibility

I went through documentation and I am wondering, whether there is something like cast reverse.

Here is my use case.

Lets say I have schema with a Date field. Now cast calls chain of transformations. But I am interested in 2 sides of it, namely string > Date and Date > string, can this be achieved somehow?

With this, I could use one yup schema as a serializer/deserializer, which would be awesome.

[jquense]

There isn’t anything built into yup for this specifically but the pattern i often use is to define two schema and export serialize/deserialize functions something like:

const schema = object({
  name: string(),
  createdAt: date().required(),
  clientId: string().required()
})

export const serialize = value => schema.shape({
  clientId: string().strip(),
  createdAt: string().transform(date => date.toISOString())
}).cast(value, { stripUnknown: true })

export const deserialize = value => schema.cast(value)

[klis87]

@jquense Added in #282