format double & int64 & int not compatible with ajv

[GopherJ]

I use schemars to generate schema but the generated schema cannot be validated by ajv, https://github.com/ajv-validator/ajv

[GopherJ]

if I remove all format: int64, format:int, format:double then it's ok

[ahl]

That sounds like a bug in ajv:

https://json-schema.org/draft/2019-09/json-schema-validation.html#rfc.section.7.2.3

An implementation MUST NOT fail validation or cease processing due to an unknown format attribute.

[JonathanPlasse]

I had the same problem with "format": uint with Ruff and it was likewise solved by removing it.

[GREsau]

Copying my comment from here:

You could say these format values are non-standard, but I don't agree that they're "non-compliant", since as you said the JSON schema spec (at least, the current version) allows custom formats.

I'm considering adding minimum/maximum to some integer schemas depending on their size, see this comment for some of my thoughts on that, although I would probably still keep the custom formats. I'm open to implementing a built-in schema transform that would remove non-standard formats, although adding that to the generator would be opt-in.