Remove legacy interfaces, implement Vercel style interface

[TooTallNate]

Previously there were two interfaces supported:

import { ServerRequest } from 'https://deno.land/[email protected]/http/server.ts';

export default function (request: ServerRequest) {
  console.log(request.url);
  request.respond({ body: '...' });
}

export default function (event: Deno.RequestEvent) {
  console.log(event.request.url);
  event.respondWith(new Response('...'));
}

Supporting both interfaces has been hard/hacky to maintain, and in 2023 there is a now a more standardized interface that also fits better with the Vercel style. This PR implements this new interface:

export default function (request: Request) {
  console.log(request.url);
  return new Response('...');
}

This new interface matches the Vercel Edge runtime syntax. The Request object is passed directly as the first parameter, and a Response instance is expected to be returned from the handler. The runtime is a lot cleaner because the legacy code has been removed. There are also less URL imports needed since Deno supports these standard classes directly (only base64 still needs to be imported).

Closes #104.

[vercel]

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Name	Status	Preview	Comments	Updated
vercel-deno	✅ Ready (Inspect)	Visit Preview	💬 Add your feedback	Feb 18, 2023 at 2:35AM (UTC)