support combining vercel edge with serverless

[kikyous]

Describe the feature

Like something in next.js, user can specify runtime for a route using a named export config. I know there is a vercel-edge preset, but it is project wide.

export const config = {
  runtime: 'edge',
}

export default (req) => new Response('Hello world!')

Additional information

• [ ] Would you be willing to help implement this feature?

[ugurkellecioglu]

I'm facing a similar issue. I want only one of my functions to run on the edge, while the rest should be deployed as serverless. However, I couldn't find the configuration to achieve this :/

[pi0]

Multi-target build to combine edge and lambda is planned: https://github.com/unjs/nitro/issues/1158

In the meantime, you can use a monorepo to build nitro app against vercel edge for that specific route and proxy from main app using route rules or directly update .vercel directory for custom handlers if really need the underlying API.

[ugurkellecioglu]

Thanks for the quick reply, @pi0 :) I have played with the monorepo solution a little bit. I had a Nuxt app and a Nitro app in my monorepo. When I deployed it to Vercel, both Nitro and Nuxt exported their functions into the same path (.vercel/output/functions/__nitro.func/index.mjs). Since Nitro was built first, it was just overwritten by Nuxt serverless functions. Do you have any recommendations to overcome this? Nitro app:

Nuxt App:

[pi0]

Nice try @ugurkellecioglu! Is it possible to share your testing monorepo so i can try it?

[ugurkellecioglu]

@pi0 Yeah, sure: https://github.com/ugurkellecioglu/monorepo_nuxt_nitro