Big int for Format int64

[wengergruppe]

Is there a way to generate Big int type fot integers with Format int64?

[mrlubos]

Hey @wengergruppe, not at the moment – adding a feature request. Do you need only types or is there any runtime transformation needed?

[mrlubos]

Closing due to inactivity. Please re-open if it's still needed

[antho1404]

I would like to reactivate this issue.
I have a similar need, where the API returns a bigInt with the following.

"amount": {
  "type": "integer",
  "format": "int64",
}

As bigInt type can't be sent via json, the api returns a string instead. This means that on the client side, I would love to be able to get the data, parse the result with the "zod" plugin that will have the bigint type, and convert the value from string to bigint with BigInt(value)

Right now, the zod schema created is typed as z.number() instead of z.string(), which might be related to this part

openapi-ts/packages/openapi-ts/src/openApi/3.1.x/parser/schema.ts

Line 81 in 8d563b5

case 'bigint':

. Note that by using a number instead of string for bigint, we are losing some precision which in most applications using bigint can be critical.

[mrlubos]

@antho1404 to clarify, you'd like 2 things?

1. Transformers to handle JSON string to BigInt transformation
2. Zod plugin to validate bigint?

[antho1404]

That's correct, to clarify for zod, it's to add the support of bigint that zod is compatible with https://zod.dev/?id=bigints. Currently, bigint are transformed in the zod schema as z.number and not z.bigint

[mrlubos]

@antho1404 @wengergruppe this will be fixed in the next release 🎉 Thanks for the patience here!

[antho1404]

Amazing, thanks for the really quick work <3