Question: How to allow optional fields to be omitted?

[CodingDive]

Package version

Latest (1.7.1)

Describe the bug

Thank you for this fantastic library and all the work in Adonis v6! ❤️

I tried to follow https://vinejs.dev/docs/schema_101#nullable-and-optional-modifiers

export const updateUserValidator = vine.compile(
  vine.object({
    password: vine.string().minLength(9).nullable().optional(),
  })

however, when I extract the type out of the validator:

type UpdateUser: Awaited<ReturnType<typeof updateUserValidator.validate>> I can see that the resulting type is password: string | null | undefined;. Is there a way to make it password?: string | null | undefined?

I could write a TypeScript helper to accomplish this in user land but it's not that pretty and I was wondering if there is an easier way.

type MakeUndefinedPropertiesOptional<T> = {
  [P in keyof T]-?: undefined extends T[P] ? P : never
}[keyof T] extends infer D
  ? { [P in keyof T as P extends D ? P : never]?: T[P] } & {
      [P in keyof T as P extends D ? never : P]: T[P]
    }
  : never

type UndefinedBar = { foo: string | null; bar: string | undefined; test: string }

type OptionalBar = MakeUndefinedPropertiesOptional<UndefinedBar> // { bar?: string | undefined } & { test: string; foo: string | null }

Small aside: In the repo, when clicking on "Get Help => Open", a new tab opens but it doesn't fill out the issue template with Question.

[RomainLanz]

Hey @CodingDive! 👋🏻

That's not how you should extract the type from the validator; you should use Infer.

import vine from '@vinejs/vine'
import type { Infer } from '@vinejs/vine/types'

const schema = vine.object({
  username: vine.string(),
  email: vine.string().email(),
  password: vine
    .string()
    .minLength(8)
    .maxLength(32)
    .confirmed()
})

type UserRegistration = Infer<typeof schema>

📚 https://vinejs.dev/docs/getting_started#inferring-types-from-schema

[CodingDive]

This simplifies the code quite a bit 😅 Thank you!

I'd still need the MakeUndefinedPropertiesOptional helper as far as I can tell

[mdsadiqueinam]

how can we make all the field optional in vine object