I'm trying to build workerd from source and alter the 1MB websocket message limit, anyone know where

Xxintercept I'm trying to build workerd from source and alter the 1MB websocket message limi...

X

xinterceptOP•9/28/25, 2:16 AM

looks like there's a flag, so don't need to recompile! https://github.com/cloudflare/workerd/blob/fd378757d8e651cc566ba82975c5d68d6111cc1f/src/workerd/io/compatibility-date.capnp#L540

YYuan Hi, is there an example of setting up cache for api response or server action fo...

P

Pingo•10/1/25, 11:11 AM

There are several ways. Can you share a screen of your package.json?

P

Pingo•10/1/25, 11:12 AM

Bom dia a todos!

P

Pingo•10/1/25, 11:14 AM

Noob here. I have been struggling for months to get resend to work on my website. It works locally with .dev.vars or .env. API key is in my env variables on my dashboard secrets. Thinking of replacing resend with vanilla js or cf workers new email sending. I also can't get OG images to work on WhatsApp for any of my websites. Anyone else?

https://dev.goat.africa

Carlos Araújo | Full stack developer

Hello, I am Carlos Araújo, a technology entrepreneur in Angola. Welcome to my developer profile. Let's connect.

P

Pingo•10/1/25, 11:17 AM

I should have been more specific

Screenshot_2025-10-01-12-16-23-925_com.android.chrome.jpg

S

Salam•10/2/25, 9:02 PM

Need help guys
Getting this strange error on Pages build for a static ico file
I don't want to migrate to Workers yet for this project, so not an option

@Cloudflare/next-on-pages CLI v.1.13.7
▲ Next.js 14.2.3

21:47:34.451    ▲  ├ ○ /icon.ico                            0 B                0 B
21:47:34.451    ▲  ├ ƒ /pricing                             1.56 kB         193 kB

21:47:40.922    ⚡️ ERROR: Failed to produce a Cloudflare Pages build from the project.
21:47:40.923    ⚡️ 
21:47:40.923    ⚡️     The following routes were not configured to run with the Edge Runtime:
21:47:40.923    ⚡️       - /icon.ico
21:47:40.924    ⚡️ 
21:47:40.924    ⚡️     Please make sure that all your non-static routes export the following edge runtime route segment config:
21:47:40.924    ⚡️       export const runtime = 'edge';

21:47:34.451    ▲  ├ ○ /icon.ico                            0 B                0 B
21:47:34.451    ▲  ├ ƒ /pricing                             1.56 kB         193 kB

21:47:40.922    ⚡️ ERROR: Failed to produce a Cloudflare Pages build from the project.
21:47:40.923    ⚡️ 
21:47:40.923    ⚡️     The following routes were not configured to run with the Edge Runtime:
21:47:40.923    ⚡️       - /icon.ico
21:47:40.924    ⚡️ 
21:47:40.924    ⚡️     Please make sure that all your non-static routes export the following edge runtime route segment config:
21:47:40.924    ⚡️       export const runtime = 'edge';

21:47:34.451    ▲  ├ ○ /icon.ico                            0 B                0 B
21:47:34.451    ▲  ├ ƒ /pricing                             1.56 kB         193 kB

21:47:40.922    ⚡️ ERROR: Failed to produce a Cloudflare Pages build from the project.
21:47:40.923    ⚡️ 
21:47:40.923    ⚡️     The following routes were not configured to run with the Edge Runtime:
21:47:40.923    ⚡️       - /icon.ico
21:47:40.924    ⚡️ 
21:47:40.924    ⚡️     Please make sure that all your non-static routes export the following edge runtime route segment config:
21:47:40.924    ⚡️       export const runtime = 'edge';

21:47:34.451    ▲  ├ ○ /icon.ico                            0 B                0 B
21:47:34.451    ▲  ├ ƒ /pricing                             1.56 kB         193 kB

21:47:40.922    ⚡️ ERROR: Failed to produce a Cloudflare Pages build from the project.
21:47:40.923    ⚡️ 
21:47:40.923    ⚡️     The following routes were not configured to run with the Edge Runtime:
21:47:40.923    ⚡️       - /icon.ico
21:47:40.924    ⚡️ 
21:47:40.924    ⚡️     Please make sure that all your non-static routes export the following edge runtime route segment config:
21:47:40.924    ⚡️       export const runtime = 'edge';

A

Anes•10/5/25, 10:42 PM

can't we define abstract classes on workers? I'm keep getting this error on deployment:

01:38:28.079      Uncaught TypeError: Class extends value undefined is not a constructor or null

01:38:28.079 Uncaught TypeError: Class extends value undefined is not a constructor or null

01:38:28.079      Uncaught TypeError: Class extends value undefined is not a constructor or null

01:38:28.079 Uncaught TypeError: Class extends value undefined is not a constructor or null

code looks like this:

export abstract class CronJob {
  static readonly cron: string;

  abstract run(ctx: ExecutionContext, controller: ScheduledController): Promise<void>;
}

export class EntryTimeoutJob extends CronJob {
  static readonly cron = "*/30 * * * *"; // Every 30 minutes

  private readonly logger = new Logger(EntryTimeoutJob.name);

  constructor(private readonly db: AppDBOrTransaction) {
    super();
  }

  async run(ctx: ExecutionContext, controller: ScheduledController): Promise<void> {
    this.logger.log("Starting...")
  }
}

export abstract class CronJob {
  static readonly cron: string;

  abstract run(ctx: ExecutionContext, controller: ScheduledController): Promise<void>;
}

export class EntryTimeoutJob extends CronJob {
  static readonly cron = "*/30 * * * *"; // Every 30 minutes

  private readonly logger = new Logger(EntryTimeoutJob.name);

  constructor(private readonly db: AppDBOrTransaction) {
    super();
  }

  async run(ctx: ExecutionContext, controller: ScheduledController): Promise<void> {
    this.logger.log("Starting...")
  }
}

export abstract class CronJob {
  static readonly cron: string;

  abstract run(ctx: ExecutionContext, controller: ScheduledController): Promise<void>;
}

export class EntryTimeoutJob extends CronJob {
  static readonly cron = "*/30 * * * *"; // Every 30 minutes

  private readonly logger = new Logger(EntryTimeoutJob.name);

  constructor(private readonly db: AppDBOrTransaction) {
    super();
  }

  async run(ctx: ExecutionContext, controller: ScheduledController): Promise<void> {
    this.logger.log("Starting...")
  }
}

export abstract class CronJob {
  static readonly cron: string;

  abstract run(ctx: ExecutionContext, controller: ScheduledController): Promise<void>;
}

export class EntryTimeoutJob extends CronJob {
  static readonly cron = "*/30 * * * *"; // Every 30 minutes

  private readonly logger = new Logger(EntryTimeoutJob.name);

  constructor(private readonly db: AppDBOrTransaction) {
    super();
  }

  async run(ctx: ExecutionContext, controller: ScheduledController): Promise<void> {
    this.logger.log("Starting...")
  }
}

K

kapil•10/14/25, 1:30 PM

@cb @nora @John Spurlock What is the minimum latency that can be achieved with a Cloudflare Worker? We are currently experiencing very high latency from the Cloudflare Worker side. If possible, could you suggest what changes can be made to reduce the latency when interacting with the Cloudflare Worker.

S

SuperHelpflare•10/14/25, 1:37 PM

Please do not ping community members for non-moderation reasons. Doing so will not solve your issue faster and will make people less likely to want to help you.

S

SuperHelpflare•10/14/25, 1:41 PM

Please do not ping community members for non-moderation reasons. Doing so will not solve your issue faster and will make people less likely to want to help you.

K

kapil•10/14/25, 2:02 PM

Suppose I am sending a request that takes around 50 ms to compute, but the wall time is about 24 ms higher. I’m not able to figure out where this extra 20–24 ms delay is coming from.

B

Bota•10/14/25, 8:00 PM

when i run

npx wrangler r2 bucket list

npx wrangler r2 bucket list

npx wrangler r2 bucket list

npx wrangler r2 bucket list

i dont see my exsisting bucket in my R2 object storage. But when i create it with the CLI it finds the second created bucket. How can i use my exsisting one? Or how to list it?

B

Bota•10/14/25, 8:01 PM

(I deleted test again)

BBota when i run ```npx wrangler r2 bucket list``` i dont see my exsisting bucket in m...

H

Hard@Work•10/14/25, 8:38 PM

Try

$ npx wrangler r2 bucket list -J eu

$ npx wrangler r2 bucket list -J eu

$ npx wrangler r2 bucket list -J eu

$ npx wrangler r2 bucket list -J eu

H

Hard@Work•10/14/25, 8:38 PM

Jurisdictions must be explicitly passed

HHard@Work Try ```sh $ npx wrangler r2 bucket list -J eu ```

B

Bota•10/14/25, 8:39 PM

thanks

B

Bota•10/14/25, 8:40 PM

is there somewhere a guide how to use angular workers with cloudflare?
https://angular.dev/ecosystem/service-workers/custom-service-worker-scripts

i am kind of lost how to implement buckets in an exsisting project

Angular

The web development framework for building modern apps.

BBota is there somewhere a guide how to use angular workers with cloudflare? https://a...

H

Hard@Work•10/14/25, 8:41 PM

Angular Service Workers run on the client-side, no? I wouldn't think there is anything special that needs to be done to get them working on Cloudflare

HHard@Work Angular Service Workers run on the client-side, no? I wouldn't think there is an...

B

Bota•10/14/25, 8:47 PM

I am kind of super new to workers itself. Angular Workers get delivered in the root of the build.

Currently i just deploy the build files to Cloudfare pages with a github action. I dont understand how to configure my worker.

https://developers.cloudflare.com/r2/api/workers/workers-api-usage/

The example in section 4 uses a wrangler config file but i dont have that

Cloudflare Docs

Use R2 from Workers

C3 (create-cloudflare-cli) is a command-line tool designed to help you set up and deploy Workers & Pages applications to Cloudflare as fast as possible.

B

Bota•10/14/25, 8:48 PM

A

Alf•10/16/25, 8:00 PM

PS C:\Users\alfie\Downloads\infinity-portfolio> npm install @opennextjs/cloudflare@latest
npm error code E404
npm error 404 Not Found - GET https://registry.npmjs.org/opennext - Not found
npm error 404
npm error 404 'opennext@^2' is not in this registry.
npm error 404
npm error 404 Note that you can also install from a
npm error 404 tarball, folder, http url, or git url.
npm error A complete log of this run can be found in: C:\Users\alfie\AppData\Local\npm-cache_logs\2025-10-16T19_52_39_347Z-debug-0.log
why do i get this error

S

SmallShen•11/1/25, 1:02 PM

My typescript language server does not show worker's caches.default, im generating types using

wrangler types

wrangler types

wrangler types

wrangler types the caches language server read is from lib.dom.d.ts, not the generated file. How do I fix this?

C

code ai•11/6/25, 2:08 AM

Hi community, please where can I get an customer service agent template with Admin Dashboard ? I don't know how to add a dashborad to an agent.

SSmallShen My typescript language server does not show worker's caches.default, im generati...

O

olafg•11/6/25, 9:20 AM

Afaik this is built on top of the browser Cache API so type wouldn't come from Wrangler

Oolafg Afaik this is built on top of the browser Cache API so type wouldn't come from W...

S

SmallShen•11/6/25, 10:13 AM

But the generated .d.ts by wrangler types does contains .default

A

arnaseef•11/8/25, 9:46 PM

https://community.cloudflare.com/t/browser-rendering-json-with-custom-ai/854912
can somebody please help me with this?

S

snapps•11/10/25, 9:21 AM

Hello chat!
I have an inquiry about

ctx.waitUntil

ctx.waitUntil

ctx.waitUntil

ctx.waitUntil.
I'm trying to use it in my worker to send two
fetch
fetch
fetch
fetches (a callback response and a followup message from Discord's Bot API, for context).
When I'm running the worker locally it can send both

fetch

fetch

fetch

fetches just fine, but when its running on the cloud, Discord only receives the first request.
Admittedly, I'm not an expert in async programming, but I don't think I've done wrong since its working locally.
Asking on chance that maybe someone has experience with this.
I have a suspicion that I may have used async/await wrongly.

Posting this message is the last thing I'm doing before bed, so sorry if you'd like to see the actual code; I'll post it later if requested.
Simplified code below...

async fetch(request, env, ctx){
  ctx.waitUntil(
    // Wrapping it in a promise worked for someone else
    new Promise(async function (resolve) {
        await runCommand()
        return resolve(undefined)
    }))
  return new Response("Hello World!")
}

async function runCommand(){
  await sendCallback() // Discord only recieves this one
  // do command stuff
  await sendFollowup()
}

async function sendCallback(){ await fetch() }
async function sendFollowup(){ await fetch() }

async fetch(request, env, ctx){
  ctx.waitUntil(
    // Wrapping it in a promise worked for someone else
    new Promise(async function (resolve) {
        await runCommand()
        return resolve(undefined)
    }))
  return new Response("Hello World!")
}

async function runCommand(){
  await sendCallback() // Discord only recieves this one
  // do command stuff
  await sendFollowup()
}

async function sendCallback(){ await fetch() }
async function sendFollowup(){ await fetch() }

async fetch(request, env, ctx){
  ctx.waitUntil(
    // Wrapping it in a promise worked for someone else
    new Promise(async function (resolve) {
        await runCommand()
        return resolve(undefined)
    }))
  return new Response("Hello World!")
}

async function runCommand(){
  await sendCallback() // Discord only recieves this one
  // do command stuff
  await sendFollowup()
}

async function sendCallback(){ await fetch() }
async function sendFollowup(){ await fetch() }

async fetch(request, env, ctx){
  ctx.waitUntil(
    // Wrapping it in a promise worked for someone else
    new Promise(async function (resolve) {
        await runCommand()
        return resolve(undefined)
    }))
  return new Response("Hello World!")
}

async function runCommand(){
  await sendCallback() // Discord only recieves this one
  // do command stuff
  await sendFollowup()
}

async function sendCallback(){ await fetch() }
async function sendFollowup(){ await fetch() }

Ssnapps Hello chat! I have an inquiry about `ctx.waitUntil`. **I'm trying to use it in ...

X

xtudos•11/18/25, 2:11 AM

Why dont you call

waitUntil(sendCallback)
Then
waitUntil(sendFollowup)

Or even better
Use a Queue, waitUntil only runs for 15seconds, so thats may be your problem

S

snapps•11/18/25, 2:30 AM

I figured out what the problem was. There was an error happening inside the waitUntil and that caused it to hang

S

snapps•11/18/25, 2:31 AM

Would like to use queues in the future when I'm more confident in my abilities though

X

xtudos•11/18/25, 2:31 AM

Nice

D

DevZ•11/21/25, 9:51 AM

Hey everyone!
I’m trying to build an AI agent using the Cloudflare Agents SDK and connect it to my MCP server. I’ve gone through the official documentation, but I’m having trouble getting everything working. I’m still fairly new to Cloudflare, so I may be missing something obvious.
If anyone could point me to helpful resources or provide some guidance on the implementation, I’d really appreciate it. Thanks!

G

gegi•11/24/25, 10:18 AM

Hello, does anyone can tell me, how I can notify the user on the frontend, that a new version is deployed

Ggegi Hello, does anyone can tell me, how I can notify the user on the frontend, that ...

I

Isaac McFadyen•11/24/25, 5:04 PM

It would depend on what framework you're using (if any)

I

Isaac McFadyen•11/24/25, 5:04 PM

For example, SvelteKit has https://svelte.dev/docs/kit/configuration#version

IIsaac McFadyen It would depend on what framework you're using (if any)

G

gegi•11/24/25, 5:27 PM

Im using Tanstack start

A

Abdel-rahman•11/26/25, 7:35 AM

Hello Cloudflare developers, I’m new to the Cloudflare ecosystem and I’m looking for an up-to-date, free course that teaches how to build a simple full-stack app such as a to-do list with authentication using Cloudflare Pages, Workers, Cloudflare Auth, and the D1 database. Any recommendations?

AAbdel-rahman Hello Cloudflare developers, I’m new to the Cloudflare ecosystem and I’m looking...

G

ghost•11/26/25, 10:01 PM

I'd recommend starting with NextJS and OpenNext I'm not sure what "Cloudflare Auth" is, but you can use Clerk for development purposes.

Gghost I'd recommend starting with NextJS and OpenNext I'm not sure what "Cloudflare Au...

G

ghost•11/26/25, 10:02 PM

Might be a better framework to learn, but I am NextJS guy

Gghost I'd recommend starting with NextJS and OpenNext I'm not sure what "Cloudflare Au...

G

ghost•11/26/25, 10:02 PM

Also PrismaORM got huge update recently, they're now supporting Cloudflare D1.

Gghost I'd recommend starting with NextJS and OpenNext I'm not sure what "Cloudflare Au...

Z

zsueo•11/27/25, 1:42 PM

maybe they mean cloudflare access? plus i think hono is a better framework to learn for workers

Z

zsueo•11/27/25, 1:42 PM

nextjs runs a little slow on workers irrc

A

Azael•12/3/25, 4:31 PM

Hello everyone — I would like some help with this template: https://workers.new/templates/openauth-template
. On the first invocation, the worker consistently shows very large wall times (sometimes over 40 seconds). This also happens when testing from new clients or browsers on other devices — the first request always faces the same long wall time. I followed all steps and deployed using the Deploy to Cloudflare Workers option and C3, but the issue persists. Any pointers on what I should check would be appreciated. Thank you!

Edit: I noticed the live example only shows a pair of public keys and the one deployed by the tools creates over 192 keys, why?

J

José Junior•12/14/25, 8:18 PM

Maybe this is a stupid question, but since Cloudflare SQLite-backed Durable Objects query executions are synchronous, what happens if I mix them with other async operations inside this.ctx.storage.transaction? Can I do that? If the async operation rejects/fails and/or throws, will the transaction be rolled back?

S

shta•12/15/25, 4:16 PM

@Ven_Dev how did you solve this, please? coding-help

I'm trying to build workerd from source and alter the 1MB websocket message limit, anyone know where

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