Define custom type formats

[grosch]

Is there any way to specify a custom type? A large number of my parameters are a UUID and I'm not seeing anything explicit for that. I'd like to somehow define a UUID format for string where it also knows a default example value for a UUID.

I'd like to do something like:

CustomType:
  uuid:
    parentType: string
    examples: 
      application/json: "71b4702f-ed9f-48f6-b77f-d4dda03ea01b"

[hkosova]

Some tools support format: uuid:

type: string
format: uuid

format is an open-valued property so you can specify any format provided that the tools support that. See also OAI/OpenAPI-Specification#607 (comment).