How to get a Hono app to respond to a Cloudflare Worker fetch event?

[andyjessop]

I have a Cloudflare Worker that has both a Hono app, and also some other routes not handled by Hono - how can I delegate certain routes to be handled by the Hono app?

E.g.

import { app } from './app'; // My Hono App
import { Env } from './types';

export default {
  fetch: handleFetch,
};

async function handleFetch(
  request: Request,
  env: Env,
  context: ExecutionContext,
): Promise<unknown> {
  // if route should be handled by Hono
  // What do I add here to have it handle the event?
  // return app.fire()?
}

[andyjessop]

In answer to my own question, it's:

async function handleFetch(
  request: Request,
  env: Env,
  context: ExecutionContext,
): Promise<unknown> {
  return app.fetch(request, env, context);
}