Zod•2mo ago

hinogi - tsconst a = z.object({ foo: z.strin...

const a = z.object({
  foo: z.string()
})

const b = z.object({
  bar: z.lazy(() => a().nullish)
})

b.parse({bar: {}})

const a = z.object({
  foo: z.string()
})

const b = z.object({
  bar: z.lazy(() => a().nullish)
})

b.parse({bar: {}})

this will error because foo is undefined. What do I need to change here to make a optional so that it will not break if bar is just empty since foo should be optional?

Solution:

ok so foo has to be foo: null | undefined and {} is not a valid solutions. also, if null, the key will persist, if undefined the key is gone 😄 thanks playground

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6 Replies

hinogiOP•2mo ago

bit additional background, such a thing is generated by graphql codegen schema validation, I try to figure out how to fix this for optional input types depending on non nullable input properties

Unknown User•2mo ago

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hinogiOP•2mo ago

sure but I am not sure if it needs to be

const b = z.object({
  bar: z.lazy(()=> a.nullish()).nullish()
})

const b = z.object({
  bar: z.lazy(()=> a.nullish()).nullish()
})

or something

hinogiOP•2mo ago

https://zod-playground.vercel.app?appdata=N4IgzgxgFgpgtgQxALhALwHQHsBGArGCAFwApgAdAOwAJqAzLLZazAGwTQE8SSBKagLwA%2BFtnyFSFGrWo4EAJ2aYwReQEtKAcz5VaAX14ZKAV1as1YKH15UDIADQgAbglbGYYFAG0QwBk2pgPT0QAF1HJxh5MDUsShQQAGYMACYAFlSQPSA

Zod Playground

An interactive playground for testing and learning Zod schemas

Solution

hinogi•2mo ago

ok so foo has to be foo: null | undefined and {} is not a valid solutions. also, if null, the key will persist, if undefined the key is gone 😄 thanks playground

hinogiOP•2mo ago

Gaming

Programming

hinogi - tsconst a = z.object({ foo: z.strin...

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