src/routes/models/[userId]/[slug]/+page.ts

import { error } from '@sveltejs/kit';

/** @type {import('./$types').PageLoad} */
export async function load({ params, fetch }) {
  const { userId, slug } = params;

  const model_request = await fetch(`/api/models/${userId + "@" + slug}?full=true&metadata=true`, {
    method: "GET",
    headers: {
      "Content-Type": "application/json"
    }
  })
  const data = await model_request?.clone().json().catch(() => null);

  if (!data?.model) {
    return error(404, 'Not found');
  }

  return data
}