OpenAPI 3.0 nullable not supported

[fabiendeborde]

Hello,
I am working on a schema that was failing validation in Postman documentation tab, and finally found why it was failing.
I have this property in the schema

siteLogo:
    type: string

and this example

siteLogo: null

Even when adding nullable: true in my schema the validation fails.
If I replace the example by siteLogo: '', it passes.

Am i missing something, or the nullable property is not supported?

[VShingala]

@fabiendeborde Yes, It seems nullable keyword is not supported yet. The reason for it is we use JSON schema validation (we first convert OpenAPI schema to JSON schema for validation) and nullable is not supported by JSON schema.

Adding this as feature request.

[fabiendeborde]

@VShingala
Thank you for your answer. I was not sure if I had missed something.
From what I have read, the null type is supported in OpenAPI 3.1.
Between nullable property and null type, I have no idea which is easier to implement, but I hope you can add this feature in a somewhat near future.

[abhijitkane]

Thanks for reporting this @fabiendeborde
@VShingala Changed this to bug - we should correctly interpret all parts of OAS that we claim to support.