Discriminator support

[frejonb]

Do you support validation against the discriminator spec https://github.com/OAI/OpenAPI-Specification/blob/master/versions/3.0.0.md#discriminatorObject ?

[cdimascio]

The short answer is Yes. Discriminators are supported (indirectly).

To quote Evgeny

...in OpenAPI v3 you must use oneOf, discriminator is just to inform the tools what is the logic behind these oneOfs. My understanding is that removing discriminator in v3 should always result in the same validation outcome (valid/invalid), but may affect error reporting or some other behaviours. So from validation point of view it can be just ignored.

Assuming, this is the case, then yes, express-openapi-validator does support discriminators given it supports oneOf.

If you find that they is a gap or something is not working, please let us know and we'll get to work on it.

[frejonb]

Fair enough