Compatibility with standard-schema

[BrunnerLivio]

Is there an existing issue that is already proposing this?

• I have searched the existing issues

Is your feature request related to a problem? Please describe it

There are numerous schema validators out there. This has spawned an ecosystem around NestJS with various integrations such as nestjs-valibot and many others.

Describe the solution you'd like

NestJS could support stanadard-schema which recently hit 1.0.0:

Standard Schema is a common interface designed to be implemented by JavaScript and TypeScript schema libraries.

With that a commonly shared ValidationPipe could be offered directly from the framework instead of copy/pasting the integrations from the docs site.

Teachability, documentation, adoption, migration strategy

Guide on how to accept Standard Schema: https://standardschema.dev/#how-do-i-accept-standard-schemas-in-my-library

• Offer a general ValidationPipe that is compatible with standard-schema
• Update the docs how the ValidationPipe can be utilised with different schema libraries

What is the motivation / use case for changing the behavior?

I think it makes NestJS more future-proof with any future schema/validation library that might come

[BrunnerLivio]

Notably, there is an issue open on class-validator side around this topic as well:
typestack/class-validator#2577

[micalevisk]

I like the ideia but I think this should start as a 3rd-party lib to see community's adoption

[kamilmysliwiec]

I guess there's nothing we can do until class-validator supports the standard schema too (to avoid breaking changes)