Serving files as routes with Remix

I needed to host some legal documents on a website, but I also wanted to be able to provide a plain text source so that the legal team could make their own modifications.

Then, if they have any changes, all I have to do is upload the new file instead of changing specific lines piece by piece.

The result of this is a /terms-of-service route that renders a well formatted article and a /terms-of-service.md route that shows the raw markdown source.

Create a layout route __markdown.tsx

import {Link, Outlet, useLocation} from 'remix'
export default function MarkdownLayout() {
  const location = useLocation()
  return (
    <>
      <article className="mx-auto max-w-prose">
        <div className="pb-12 mx-auto my-6 prose text-gray-500 prose-sky">
          <Outlet />
          <Link
            reloadDocument
            to={`${location.pathname}.md`}
          >
            View printable
          </Link>
        </div>
      </article>
    </>
  )
}

Create a dynamic route that serves the file __markdown/$file.tsx

import ReactDOMServer from 'react-dom/server'
import {
  LoaderFunction,
  redirect,
  useLoaderData,
} from 'remix'
const allowedFiles = [
  'terms-of-sale',
  'privacy-policy',
  'terms-of-use',
  'financial-disclosure',
]
export const loader: LoaderFunction = async ({
  params,
}) => {
  if (!allowedFiles.includes(params.file)) {
    return redirect('/')
  }
  const files = {
    'terms-of-sale': import(
      '../../../public/terms-of-sale.md'
    ),
    'terms-of-use': import(
      '../../../public/terms-of-use.md'
    ),
    'privacy-policy': import(
      '../../../public/privacy-policy.md'
    ),
    'financial-disclosure': import(
      '../../../public/financial-disclosure.md'
    ),
  }
  const file = await files[params.file].then(
    (mod) => mod.default,
  )
  return ReactDOMServer.renderToString(file())
}
export default function PostSlug() {
  const __html = useLoaderData()
  return (
    <div dangerouslySetInnerHTML={{__html}} />
  )
}