Inline router definition

[Strajk]

Crawlee is so good that router definition often can be very simple, so it would be nice to have an option to define it "inline".
Also could be great for tutorials and snippets in docs.

const crawler = new CheerioCrawler({
  requestHandler: createCheerioRouter({
    [LABEL.INDEX]: async ({ enqueueLinks }) => {
      await enqueueLinks({
        selector: `#sitemap a`,
        label: LABEL.PRODUCTS,
      })
    },
    [LABEL.PRODUCTS]: async ({ $ }) => {
      await Actor.pushData({ title: $(`title`).text() })
    },
  }),
})
await crawler.run([{ url: `https://example.com`, label: LABEL.INDEX }])

I've prototyped the solution in my fork and it's pretty easy.

export function createCheerioRouter<
    Context extends CheerioCrawlingContext = CheerioCrawlingContext,
    UserData extends Dictionary = GetUserDataFromRequest<Context['request']> // quick&dirty copy-paste
>(
    routes?: {
        [key: string | symbol]: (ctx: Omit<Context, 'request'> & { request: Request<UserData> }) => Awaitable<void>; // quick&dirty copy-paste
    },
) {
    return Router.create<Context>(routes);
}

[Strajk]

@B4nan hey mr. 🍌 , should I make a PR or do u wanna discuss it internally?

[B4nan]

Yeah PR welcome. I am out for next week so it will need to wait a bit.

[Strajk]

#1877