Add http.serve() API based on Fetch (Request -> Response)

What is the problem this feature will solve?

Node provides fetch, Request/Response, and Web Streams, but no high level server API using this model.

Other runtimes such as Deno and Bun expose a serve API based on the Fetch contract. In Node, similar patterns are commonly implemented in userland (e.g., frameworks like Hono), which indicates demand for this abstraction.

This was discussed in #42529 and received support, however that issue is focused on request.toWeb(), so opening a separate issue focused on this API.

What is the feature you are proposing to solve the problem?

Add a high-level http.serve(handler) API.

An example shape could be:

http.serve((req) => new Response("ok"))

handler: (Request) => Response | Promise<Response>

This would coexist with the existing http.createServer, and be a high level alternative using WHATWG APIs instead.

What alternatives have you considered?

• Continue using http.createServer directly.
• Implement this in userland, or use existing 3rd party solutions.

Commencez par examiner l’API http.createServer existante de Node ainsi que la discussion dans l’issue #42529. Le travail proposé consiste à définir et ajouter http.serve(handler) en utilisant Request et Response, tout en conservant createServer disponible. Le travail est terminé lorsque la forme et le comportement de l’API sont convenus, implémentés et couverts pour les handlers synchrones et asynchrones.