Please check this to learn how to deploy functions - https://developers.cloudflare.com/pages/platform/functions/get-started/ and if you have more questions, let us know 🙂

Hi! I'm currently working with functions & pages for the first time, and I have a question regarding their cap for CPU time. We have a function that has a median CPU time of 200ms (althought with very low req/s number). But the docs for the free plan, which we can hopefully stay on, says up to 10ms CPU time per request. My question is, how does that work? We're already breaking that cap by 20x. Is it accumulative per month or something? Or are we going to be forced somehow cut that down to 50ms, which is the starting tier for paid plans?

Hello, I am using Functions, but my question is not Functions-specific. I'm trying to send 2 cookies at once in the

Set-Cookie

header, but the browser recognizes it as a single cookie (it should split them into 2). The created cookie has a name and a value from the first one and other attributes like

Path

and

Max-Age

from the second one. My code:

ts
// Next13, Edge Runtime
    const headers = new Headers({
      'Content-Type': 'application/json;charset=UTF-8',
      'Set-Cookie': this.responseCookies.join(', '),
    });

    return new Response(JSON.stringify({ message: 'Sent' }), {
      status: 200,
      headers,
    });

I've also built one local worker that uses Hono to send the same cookies and it works perfectly. this.responseCookies looks like this:

ts
[
  'refresh-token=...; Max-Age=2592000; Path=/api/auth/refresh; HttpOnly; SameSite=Lax',
  'access-token=...; Max-Age=120; Path=/; HttpOnly; SameSite=Lax'
]

> but the browser recognizes it as a single cookie (it should split them into 2) I don't think it should - Set-Cookie should not be folded.

Use

headers.append

to add multiple

Set-Cookie

headers.

It does get split when I do it in Hono (image below). Changed

set

to

append

, still does not work. This is my code now

ts
    const headers = new Headers({ 'Content-Type': 'application/json' });
    this.responseCookies.forEach((cookie) => {
      headers.append('Set-Cookie', cookie);
    });

    console.log('all cookies', headers.get('Set-Cookie'));

    return new Response(JSON.stringify({ message: 'Sent' }), {
      status: 200,
      headers,
    });

I even tried everything ChatGPT told me and eventually it ran out of ideas 😢

When you have more than one header with the same name, you must use

headers.getAll('Set-Cookie')

to see them

I think that

Headers

are extended in CF Workers, but I don't think

getAll()

is generally available

It's a special method made for workers, which explains why it won't be in MDN

As for the type issue, I believe it's only in the v4 of workers types

See the first bullet point of https://developers.cloudflare.com/workers/runtime-apis/headers/#differences

Hi guys Do

pages

functions run on node or something more like v8? Looking to see if I can get a better understanding of which API's I can use, I am assuming the same as functions (https://developers.cloudflare.com/workers/runtime-apis/) can anyone confirm this?

Yes, Functions are just Workers

It’s all V8

Im trying to add a service binding to pages functions and I am getting this error. Ive noticed I only get the error when trying with my workers that have underscores in the name. Is there a restriction put on the service names?

Invalid Service name (name_of_worker). Check your Service name and try again. (Code: 8000022)

lovely... the dash doesn't accept underscores but looks like the API does

I went off the dash for validation

Ah ok, I had created my workers with wrangler. Thanks

made a ticket but OOO so can't fix right now

Hello 🙂 Can functions in a pages project depend on other npm-pacakges or will that require a standalone worker-project?

Yes, your functions are bundled with esbuild, so any npm packages that work in V8 (meaning they don't depend on node-specific things), should all work fine

Any guides/samples on this? Have only seen standalone functions/helloworld.js samples for functions, nothing with package.json etc.

This is good feedback - it should probably be made more clear. It should ‘just work’ though - place the package.json in your root as per normal, and then a functions folder alongside. Anything you import within functions should be bundled.

Oh, I can use the reuse the root-level package.json used for my web framework? 😮

Yeah, just treat functions like a normal folder in your project

Awesome! And AFAIK functions have more or less the same limitations as workers right? So technically https://github.com/PaganMuffin/og-image-test should be achievable in functions also?

It's not yet possible to upload wasm to functions but I've seen a bit of talk about it recently so hopefully that's on the way

Delay or worker it is 🙂 Thanks for the excellent help!

Can you make a docs issue

!remind 6h functions docs issue package.json