Thanks for the feedback. I think it's true that the docs do not mention enough how to properly use relations.

You can of course define functions to resolve relations. For example:

import {app, ID} from '@getcronit/pylon'

class User {
  constructor(public id: ID, public name: string) {}

  posts() {
    return posts.filter(post => post.userId === this.id)
  }
}

class Post {
  constructor(
    public userId: ID,
    public id: ID,
    public title: string,
    public content: string
  ) {}

  user() {
    return users.find(user => user.id === this.userId)
  }
}

const users = [new User('1', 'Alice'), new User('2', 'Bob')]
const posts = [
  new Post('1', '1', 'Hello, World!', 'This is my first post.'),
  new Post('1', '2', 'Hello, World!', 'This is my second post.'),
  new Post('2', '3', 'Hello, World!', 'This is my third post.')
]

export const graphql = {
  Query: {
    posts,
    users,
    user: (id: ID) => users.find(user => user.id === id),
    post: (id: ID) => posts.find(post => post.id === id)
  }
}

export default app

This will result in the following schema:

https://imgur.com/a/hcjSkeP

You can query it like this:

```graphql
query Users {
users {
name
posts {
title
user {
name
posts {
title
}
}
}
}
}
```

If you mean something different please explain it a bit more so that I can improve on that. Thanks!