Property 'project' does not exist on type 'Request'

[andyjessop]

I'm unable to get type inference working on the withParams helper:

import { Router } from 'itty-router';
import { withParams } from 'itty-router-extras';

export default {
  fetch
};

const router = Router();

router.get('/projects/:project/deployments', withParams, async ({ project }) => {
  console.log(project);
  return new Response();
});

Gives me this error:

Property 'project' does not exist on type 'Request'. ts(2339)

[bkyerv]

you can extend the Request interface and add 'project' type and assign it to 'any' and make it optional

[kwhitley]

In the middle of https://github.com/kwhitley/itty-router/pull/121, where I may be rewriting all the types for core (I'm certainly doing it for extras, that are being brought into core), so this is helpful, thanks!