I started using Prisma a few weeks ago and absolutely love it. One thing I can't seems to find is how to do schema validations. For example, if I have a field that is an int between 1 and 10 characters, is there a way to attach this to the Prisma Schema? All the articles I have read say you need to use something like Joi or Zod. Any ideas?

Exactly what those article said. Prisma is an ORM not a schema validation library. I think they partly support CHECK constraints at the database level but good luck with that. The best thing you can do is just use Joi, Zod or class validator library

Thanks @Adrian. I am currently using TypeORM for a project because I can use classes for my models, but I think your suggestion above is not a bad idea.

I am using TypeORM as well as class-validator and class-transformer in NestJS. We will migrate to Prisma in the following months in the company I work at and what I told you was the best approach I found for schema validation. Maybe it is not the best but didn't want to spend time looking into other libraries

Ah. Good point. Any particular reason you are switching off TypeORM?

I find it a pain in the ass to work with it. TS support is better in Prisma. Also TypeORM is less mantained.