I have a question about NextJS on Pages. Is it like workers where there is a concurrency limit of 6

I have a question about NextJS on Pages. Is it like workers where there is a concurrency limit of 6 outgoing requests at a time?

Kkchro3 I have a question about NextJS on Pages. Is it like workers where there is a con...

Hard@Work•1/22/25, 9:57 PM

Yes, since Pages runs on Workers too

Qalib•1/23/25, 12:34 PM

hey guys, we have reached the limit of Pages Functions bundle size of 25Mib, which prevents us from releasing new features on Cloudflare Pages and blocks the development process. We have requested a limit increase last week, but didn't get a reply. Is there a way to increase this limit?
We are using CF pages Paid plan + Pro plan
Account ID: a8ca576f8d052ec304f234b76fa71044
Deployment ID: 1582ba91-a2f8-4cd4-bd91-0dadf991771e

James•1/23/25, 2:19 PM

I believe 25mb is a hard limit, i.e. can't go above

James•1/23/25, 2:20 PM

You should try and see if there are areas of your app that can be optimized to reduce the bundle size, because 25mb (after deduplication etc.) sounds very big

JJames I believe 25mb is a hard limit, i.e. can't go above

Hello, I’m Allie!•1/23/25, 2:20 PM

Isn’t that for Assets, not Functions?

HHello, I’m Allie!Isn’t that for Assets, not Functions?

James•1/23/25, 2:20 PM

¯\_(ツ)_/¯

James•1/23/25, 2:21 PM

That's just what I remember being told a while ago

HHello, I’m Allie!Isn’t that for Assets, not Functions?

Qalib•1/23/25, 2:25 PM

yup, that's what i thought as well

JJames I believe 25mb is a hard limit, i.e. can't go above

Walshy•1/23/25, 3:35 PM

this.

dex•1/23/25, 4:13 PM

is there a place where i can seew hich nextjs version is compatible with pages?

dex•1/23/25, 4:13 PM

which latest next version i mean

James•1/23/25, 5:22 PM

Only Next.js 14 is officially supported, but I believe people have got Next.js 15 working as well

makisuo•1/25/25, 11:48 PM

I'm also having soem size issue, but at this point have nothing more to optimize it feels like... all dependencies are required. But the page size is keep growing with every new page we add and we are very close to the 25mb again. Are we doing something wrong here?

blocks-getjustd-com.a5358b05-d6b7-4319-a5b7-43bf7978fb98.log118.79KB

Dev•1/26/25, 12:59 PM

does resend email work with next-on-pages?
im getting this error ✘ [ERROR] Failed to send email: ReferenceError: MessageChannel is not defined✘ [ERROR] Failed to send email: ReferenceError: MessageChannel is not defined when called the email sending server action

Dev•1/26/25, 12:59 PM

if it does not, whats the next best method to send email from a cloudflare environment

Mmakisuo I'm also having soem size issue, but at this point have nothing more to optimize...

James•1/26/25, 4:17 PM

109 edge function routes is a heck of a lot. The deduping of webpack chunks is helping massively already taking each route from 600-650kb to 140-180kb. i think you're running into the limit purely just because you have so many routes

Yomisana•1/26/25, 4:21 PM

Hi I have issue about build v2 nodejs version is 18.17.118.17.1 issue about latest nextjs need 18.18.018.18.0
using command create nextjs app of npm create cloudflare@latest -- my-next-app --framework=nextnpm create cloudflare@latest -- my-next-app --framework=next
Cloudflare docs

Cloudflare Docs

Get started | Full-stack (SSR) | Next.js apps · Cloudflare Pages docs

Deploy a full-stack Next.js app to Cloudflare Pages

YYomisana Hi I have issue about build v2 nodejs version is ``18.17.1`` issue about latest ...

Isaac McFadyen•1/26/25, 4:23 PM

Set an environment variable (in the Pages settings) of NODE_VERSIONNODE_VERSION and a value of 2020

JJames 109 edge function routes is a heck of a lot. The deduping of webpack chunks is h...

makisuo•1/26/25, 4:25 PM

We just have a lot of routes yeah.
I have everything as edge runtime right now preventing some of the routes that could be statically rendered to be static.

But as far as i understood it, thats kinda the limitation here. Does this just mean next on pages has a "soft route limit"?

IIsaac McFadyen Set an environment variable (in the Pages settings) of `NODE_VERSION` and a valu...

Yomisana•1/26/25, 4:26 PM

still failed

YYomisana still failed

Isaac McFadyen•1/26/25, 4:27 PM

What does the error say in the logs?

Yomisana•1/26/25, 4:27 PM

well make me try create ".env" file to fix that?

Isaac McFadyen•1/26/25, 4:27 PM

.env file won't work, that's not a thing that changes the Node version

Yomisana•1/26/25, 4:27 PM

yomisana-nextjs-cloudflare-tauri-app-frontend.9671abf3-0e8f-47ab-8950-d12c7d4e1646.log24.55KB

Yomisana•1/26/25, 4:29 PM

Build system versionBuild system version are V2, and I try Variables and SecretsVariables and Secrets: Plaintext, NODE_VERSION, 20

Yomisana•1/26/25, 4:29 PM

Is any I did wrong? thisisfine

YYomisana ``Build system version`` are V2, and I try ``Variables and Secrets``: Plaintext,...

Isaac McFadyen•1/26/25, 4:32 PM

Make sure you don't have a space in your environment variable?

Isaac McFadyen•1/26/25, 4:33 PM

Just 2020

Yomisana•1/26/25, 4:33 PM

yup sir not have space

Isaac McFadyen•1/26/25, 4:35 PM

Do you have a .node-version.node-version or .nvmrc.nvmrc file in your project?

Yomisana•1/26/25, 4:37 PM

nope it new from the Pages Nextjs SSR docs like I said just follow the command

IIsaac McFadyen Do you have a `.node-version` or `.nvmrc` file in your project?

Yomisana•1/26/25, 4:45 PM

okay I fix it but it just need manual add like .nvmrc.nvmrc and input 2020 push commit and it publish rocketmoon

Yomisana•1/26/25, 4:45 PM

might add this tip in docs?

Yomisana•1/26/25, 4:47 PM

follow at this cf thread https://community.cloudflare.com/t/node-version-is-being-ignored/657974/2

DDev does resend email work with next-on-pages? im getting this error `✘ [ERROR] Fail...

Dev•1/28/25, 5:50 AM

can anybody help

James•1/28/25, 8:35 AM

Most likely not, that API is not implemented in workerd - https://github.com/cloudflare/workerd/issues/3273

GitHub

Runtime APIs: MessageChannel · Issue #3273 · cloudflare/workerd

The MessageChannel API is available on node but not CF Workers. This is causing an issue during the deployment of sites using React 19 + Astro + Workers, see facebook/react#31827 and withastro/astr...

JJames Most likely not, that API is not implemented in workerd - https://github.com/clo...

Dev•1/28/25, 12:37 PM

Is there any other way to send emails from cloudflare environment?

James•1/28/25, 1:11 PM

I do not know

Althaf•1/28/25, 3:22 PM

Does cloudflare pages support react server actions ?

Althaf•1/28/25, 3:23 PM

codecrafter-fs•1/28/25, 3:28 PM

cloudflare pages nextjs, caching on KV not populating. Followed the steps as given in below documentation, but nothing gets populated on KV store.

https://developers.cloudflare.com/pages/framework-guides/nextjs/ssr/caching/#workers-kv-recommended

Cloudflare Docs

Caching and data revalidation in your Next.js app · Cloudflare Page...

@cloudflare/next-on-pages supports caching and revalidating data returned by subrequests you make in your app by calling fetch().

AAlthaf Click to see attachment

James•1/28/25, 9:00 PM

That runtime export is a page/layout level concern, so I think it's just being put in the wrong place

YoYo•1/29/25, 1:37 PM

I have a nextjs project which is using next on pages to build it for the cloudflare pages platform. I followed the documentation here: https://developers.cloudflare.com/pages/framework-guides/nextjs/ssr/get-started/
I am also using D1 as my database. Running the development server, I can send requests to my /api/waitlist/api/waitlist route, where waitlistwaitlist is the route defined, and I am able to save data to my local D1 correctly.
The problem comes when I run a build preview using this

package.json

package.json

script: "preview": "npm run cfbuild && wrangler pages dev --port 3005""preview": "npm run cfbuild && wrangler pages dev --port 3005".
It builds the project perfectly fine and I am using the experimental-edgeexperimental-edge runtime.
When the wrangler dev server starts and I make a request to my /api/waitlist/api/waitlist route, it is throwing the following error:

[wrangler:inf] POST /api/waitlist 500 Internal Server Error (52ms)
✘ [ERROR] [Error: No such module "__next-on-pages-dist__/functions/api/async_hooks".

    imported from "__next-on-pages-dist__/functions/api/waitlist.func.js"]

[wrangler:inf] POST /api/waitlist 500 Internal Server Error (52ms)
✘ [ERROR] [Error: No such module "__next-on-pages-dist__/functions/api/async_hooks".

    imported from "__next-on-pages-dist__/functions/api/waitlist.func.js"]

I don't know why I am getting this error and how do i fix it? Please help.

I am using this version of "@cloudflare/next-on-pages": "^1.13.7","@cloudflare/next-on-pages": "^1.13.7", in my package.json.

James•1/29/25, 2:14 PM

Can you make sure your compatibility date is after Sept 23rd

JJames Can you make sure your compatibility date is after Sept 23rd

YoYo•1/29/25, 3:03 PM

Just checked, it isn't. What should I change it to?
I can't find any mention of distinct comptability date options

YoYo•1/29/25, 3:04 PM

in documentation

JJames Can you make sure your compatibility date is after Sept 23rd

YoYo•1/29/25, 3:11 PM

I changed it to 2024-09-24 and it worked.
Thank you so much. I have been stuck on this all day.
It would be better if these things are present in the documentation.

James•1/29/25, 3:29 PM

it's becaues next.js/vercel made a change that only works with the new version of nodejs_compat_v2 and that was merged into nodejs_compat on sept 23rd - https://developers.cloudflare.com/workers/runtime-apis/nodejs/#get-started

Vero•1/29/25, 5:03 PM

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This channel is archived. The product is still supported and can receive community support in pages-help

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I have a question about NextJS on Pages. Is it like workers where there is a concurrency limit of 6

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