8000 Support merging ZodEffects (created from an object) into other objects · Issue #1147 · colinhacks/zod · GitHub
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Support merging ZodEffects (created from an object) into other objects #1147

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Aaronius opened this issue May 17, 2022 · 6 comments
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Support merging ZodEffects (created from an object) into other objects #1147

Aaronius opened this issue May 17, 2022 · 6 comments

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@Aaronius
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I've created a ZodEffects schema as follows:

const myObjSchema = z.object({
    foo: z.string(),
    bar: z.string().optional(),
}).refine( input => {
    // allows bar to be optional only when foo is 'foo'
    if ( input.foo !== 'foo' && input.bar === undefined ) return false
    return true
});

Now I want to merge myObjSchema into another object, like so:

const composedSchema = z.object({
  baz: s.string()
}).merge(myObjSchema);

But I can't, because merge is expecting an AnyZodObject argument and not a ZodEffects argument.
@colinhacks
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Owner

Correct, after a .refine you no longer has a ZodObject instance. Using .and here would work (in which case the final schema would be a ZodIntersection).

@thibaultleouay thibaultleouay mentioned this issue Jun 14, 2023
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@mabitten
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mabitten commented Apr 5, 2024

Has someone managed to resolve that? I have this problema, I use .refine and now want to use .pick but it not exist on ZodEffect.

@oliverterrell
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This chaotic end-typing has apparently been reworked in Zod 4 to a single consistent type. I can't wait for the release 😃

@donaldpipowitch
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This chaotic end-typing has apparently been reworked in Zod 4 to a single consistent type.

Can I read about this somewhere? Would it mean I could use pick on a refined object schema?

@donaldpipowitch
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A maybe you meant this: #2474 (comment)

@Tuscan-blue
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Maybe try this: #1147(comment)

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6 participants
@Aaronius @donaldpipowitch @colinhacks @mabitten @oliverterrell @Tuscan-blue
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