is there a way to generate all types for a client, like graphql code generator has?

graphql nexus + paljs

Do you require it for the backend?

no, I was thinking of using the prisma model types/enums in the frontend so I dont need to manually copy paste them

You can directly import model types in the frontend via:

import { User } from '@prisma/client'

the API and frontent are seperate project

You can create an NPM package as shown here.