Split a TypeScript schema into multiple files

[lonix1]

I'm using v8 with TypeScript-based schemas.

The documentation states the ts approach is useful when:

model definitions must be split, composed, or reused across ordinary TypeScript modules or packages

It also shows an example single-file schema; here it is, but simplified:

import { defineContract, rel } from "@prisma/orm-postgres/contract-builder";

export default defineContract({}, ({ field, model }) => {

  const User = model("User", {
    fields: {
      id: field.int32().primaryKey(),
      name: field.text(),
    },
  });

  const Post = model("Post", {
    fields: {
      id: field.int32().primaryKey(),
      title: field.text(),
      userId: field.int32(),
    },
  });

  return {
    models: {
      User: User.relations({
        posts: rel.hasMany(Post, { by: "userId" }),
      }).sql({ table: "user" }),
      Post: Post.relations({
        user: rel.belongsTo(User, {
          from: "userId",
          to: "id",
        }),
      }),
    },
  };
});

I want to split that into separate files and compose them in the main contract file, for example:

prisma/
  contract.ts
  user.ts
  post.ts

I've struggled to get that to work, as there's no guidance for that scenario (other than stating it's possible), and the changes between versions makes it hard to find the correct syntax.

What is the official approach for this scenario?

Thanks!

[lonix1]

I don't think this is officially/properly supported despite the claim in the docs, so added it as a feature request here.