has anyone tried to use some of https://workers.cloudflare.com/playground for users to write WfP Use

Jjuanferreras has anyone tried to use some of https://workers.cloudflare.com/playground for us...

J

juanferrerasOP•1/15/25, 10:26 PM

ended up using https://github.com/val-town/codemirror-ts with pretty good results (you do need to upload the built output to wrangler) for a single-file user worker.

it's pretty good but still kind of missing a way to let users add a dependency – it'd be pretty cool to defer this to the API or to

wrangler

wrangler

somehow to build/bundle correctly

Jjuanferreras ended up using https://github.com/val-town/codemirror-ts with pretty good result...

H

Hello, I’m Allie!•1/16/25, 4:11 AM

You could probably go the Stackblitz route? Only thing there is you can’t run dev there

T

tornado•1/23/25, 5:34 PM

Can I use workers-for-platforms to dynamically create vectorize database per customer?

A

arun2728•1/27/25, 9:53 AM

Hi there, I am using cloudflare workers for platform. I want to create a Create a dynamic dispatch Worker that can route the request to the correct worker by extracting the details from the hostname.

Eg: My dispatch workers should be able to accept all the requests for the domain:

*.route.example.com

*.route.example.com

*.route.example.com

*.route.example.com And route it to the child worker using the subdomain.

testing-1.route.example.com -> dispatch worker 1
testing-2.route.example.com -> dispatch worker 2

This is my sample routing script from the docs: https://developers.cloudflare.com/cloudflare-for-platforms/workers-for-platforms/get-started/dynamic-dispatch/

But docs doesn't specify how to setup domains to make it work. I am unable to figure out how to set the route or domain to my dispatcher worker so that I can accept requests. How can I do this? Can anyone help me with this?

export default {
  async fetch(request, env) {
    try {
      // parse the URL, read the subdomain
      let workerName = new URL(request.url).host.split('.')[0];
      let userWorker = env.dispatcher.get(workerName);
      return await userWorker.fetch(request);
    } catch (e) {
      if (e.message.startsWith('Worker not found')) {
        // we tried to get a worker that doesn't exist in our dispatch namespace
        return new Response('', { status: 404 });
      }

      // this could be any other exception from `fetch()` *or* an exception
      // thrown by the called worker (e.g. if the dispatched worker has
      // `throw MyException()`, you could check for that here).
      return new Response(e.message, { status: 500 });
    }
  },
};

export default {
  async fetch(request, env) {
    try {
      // parse the URL, read the subdomain
      let workerName = new URL(request.url).host.split('.')[0];
      let userWorker = env.dispatcher.get(workerName);
      return await userWorker.fetch(request);
    } catch (e) {
      if (e.message.startsWith('Worker not found')) {
        // we tried to get a worker that doesn't exist in our dispatch namespace
        return new Response('', { status: 404 });
      }

      // this could be any other exception from `fetch()` *or* an exception
      // thrown by the called worker (e.g. if the dispatched worker has
      // `throw MyException()`, you could check for that here).
      return new Response(e.message, { status: 500 });
    }
  },
};

export default {
  async fetch(request, env) {
    try {
      // parse the URL, read the subdomain
      let workerName = new URL(request.url).host.split('.')[0];
      let userWorker = env.dispatcher.get(workerName);
      return await userWorker.fetch(request);
    } catch (e) {
      if (e.message.startsWith('Worker not found')) {
        // we tried to get a worker that doesn't exist in our dispatch namespace
        return new Response('', { status: 404 });
      }

      // this could be any other exception from `fetch()` *or* an exception
      // thrown by the called worker (e.g. if the dispatched worker has
      // `throw MyException()`, you could check for that here).
      return new Response(e.message, { status: 500 });
    }
  },
};

export default {
  async fetch(request, env) {
    try {
      // parse the URL, read the subdomain
      let workerName = new URL(request.url).host.split('.')[0];
      let userWorker = env.dispatcher.get(workerName);
      return await userWorker.fetch(request);
    } catch (e) {
      if (e.message.startsWith('Worker not found')) {
        // we tried to get a worker that doesn't exist in our dispatch namespace
        return new Response('', { status: 404 });
      }

      // this could be any other exception from `fetch()` *or* an exception
      // thrown by the called worker (e.g. if the dispatched worker has
      // `throw MyException()`, you could check for that here).
      return new Response(e.message, { status: 500 });
    }
  },
};

Cloudflare Docs

Create a dynamic dispatch Worker · Cloudflare for Platforms docs

After you have created a dispatch namespace, you can fetch any user Workers in the namespace using a dynamic dispatch Worker. The dynamic dispatch Worker has a namespace binding.

DDORSHT Hey, beginner question that maybe someone here can help me out with. I'm going t...

A

arun2728•1/27/25, 10:38 AM

@DORSHT Were you able to implement this? I am facing the same issue. And I am not able to figure it out.

S

safah222•1/28/25, 3:31 PM

Hello , guys , how i can exclude specific path for a worker route , as i want it to run on wordpress website , how ever triggering it as wild cart , will let the worker run millions of request for wp-admin , and wp-content reuqests , so i want to exclude wp-content from the routes how i can do that
why no one anwser please help itsurgent

Y

yags•1/29/25, 5:29 PM

Hello, are there known issues with workers right now? I'm getting 503 on deployment

 [ERROR] Received a malformed response from the API

  upstream connect error or disconnect/reset before headers. reset reason: connection termination

 [ERROR] Received a malformed response from the API

  upstream connect error or disconnect/reset before headers. reset reason: connection termination

 [ERROR] Received a malformed response from the API

  upstream connect error or disconnect/reset before headers. reset reason: connection termination

 [ERROR] Received a malformed response from the API

  upstream connect error or disconnect/reset before headers. reset reason: connection termination

Y

yags•1/29/25, 5:31 PM

^ after many attempts, worked

M

Mercie•1/29/25, 5:31 PM

I'm also getting tons of 500s and 503s in the web ui for all kinds of things, it does look like an outage to me

M

Mercie•1/29/25, 5:32 PM

trying to massage my workers haha

W

Walshy•1/29/25, 5:38 PM

Should be good again - sorry about that

M

Mercie•1/29/25, 5:39 PM

Thanks!

M

Mercie•1/29/25, 5:39 PM

Looks good to me

N

neoX•1/30/25, 6:51 PM

I changed my hosting server from bluehost to cloudflare for ssl/tls and free CDN service. I did updated the dns records to cloudflare ones and I also stopped auto-ssl from bluehost but still I'm unable to use Cloudflare ssl. (Should i need to delete bluhost ssl certificates???)

Screenshot_2025-01-30_at_11.42.05_PM.png

R

rob•1/31/25, 3:02 PM

Can you bind a specific gateway to a worker on wfp!

R

rob•1/31/25, 3:02 PM

Or does binding it to AI give it access to all gateways?

A

Advany•2/1/25, 8:25 PM

We have customers developing a workflow as a worker using ai. We deploy that to wfp as a worker with endpoints like /step1 to /step10.

We where thinking of using a durable object to call the worker thats deployed. For example first step1, get result, then call step2, etc. Untill done.

Is there a better way? Steps can take while waiting for external apis like ai

E

Exception•2/4/25, 12:07 AM

What is the best way to go to update all workers' code in a particular namespace? Is there a command for that or will you need to do it in a loop?

EException What is the best way to go to update all workers' code in a particular namespace...

V

verdverm.com•2/4/25, 3:12 AM

there seem to be some breadcrumbs here, depending on the product you are using: https://developers.cloudflare.com/durable-objects/platform/known-issues/#code-updates

Cloudflare Docs

Known issues · Cloudflare Durable Objects docs

Durable Objects is generally available. However, there are some known issues.

Vverdverm.com there seem to be some breadcrumbs here, depending on the product you are using: ...

E

Exception•2/4/25, 4:09 AM

Thanks

D

Dalist•2/5/25, 12:29 PM

is there a way I can change the puppeteer browser's version? I'm getting 120 by default!

DDalist is there a way I can change the puppeteer browser's version? I'm getting 120 by ...

D

DaniFoldi•2/5/25, 6:17 PM

This isn't directly related to WfP, so I recommend asking in #workers-help or #workers-and-pages-discussions :meowwink:

A

apignotti•2/6/25, 9:23 AM

Morning all. I have a question about WfP and legal responsibility for outbound traffic from final users.

Let's assume a final user of my service (built on WfP) generate malicious/illegal traffic. It would be my responsibility to help law enforcement track the original user of the traffic. Does CF provide any builtin auditing/logging functionality to help in this or all WfP users must create a solutions from scratch?

Aapignotti Morning all. I have a question about WfP and legal responsibility for outbound t...

W

Walshy•2/6/25, 12:46 PM

Very interesting question, let's talk through it

So, in the case of someone hosting something malicious, you'll likely receive a domain. You'll know what customer that domain tracks to.
You also control the upload path so you can log who uploads what and when.
I'd recommend also having analytics/logs for general traffic (Analytics Engine + Workers Logs would be ideal)

Then for a user Worker sending requests maliciously, we have Outbound Workers which again you can use to track analytics + Logs and tie these outbound requests to specific customers

WWalshy Very interesting question, let's talk through it So, in the case of someone hos...

A

apignotti•2/6/25, 12:49 PM

Right! Outbound Workers were the concept I was missing. I see this covers fetch explicitly, but how does this interact with TCP Socket API? Do the outbound workers intercept those too? Or is the TCP Socket API maybe disabled in WfP?

W

Walshy•2/6/25, 12:50 PM

I don't believe TCP would be covered but that's a good callout, I didn't think of that. Let me bring that up with the PM

WWalshy I don't believe TCP would be covered but that's a good callout, I didn't think o...

A

apignotti•2/6/25, 12:51 PM

Appreciated. Happy to further discuss our use case in private if needed.

S

saifeddine•2/10/25, 2:45 PM

hey
there is someone to help me fix ssl error problem ?

B

BigFungus•2/11/25, 8:32 AM

Hello. There does not seem to have deployment and versioning endpoints for worker for platform like there is for normal workers

is this correct?

Z

ZachHandley•2/11/25, 6:27 PM

hey -- does anyone know what

Z

ZachHandley•2/11/25, 6:28 PM

"18:15:34 [ERROR] Error: Disallowed operation called within global scope. Asynchronous I/O (ex: fetch() or connect()), setting a timeout, and generating random values are not allowed within global scope. To fix this error, perform this operation within a handler. https://developers.cloudflare.com/workers/runtime-apis/handlers/\n    at chunks/index_DXfsLD0r.mjs:142:26\n    at randomChar (chunks/index_DXfsLD0r.mjs:230:27)\n    at encodeRandom (chunks/index_DXfsLD0r.mjs:174:15)\n    at ulid (chunks/index_DXfsLD0r.mjs:247:41)\n    at chunks/specifications_iCWK4BKj.mjs:1137:29"

"18:15:34 [ERROR] Error: Disallowed operation called within global scope. Asynchronous I/O (ex: fetch() or connect()), setting a timeout, and generating random values are not allowed within global scope. To fix this error, perform this operation within a handler. https://developers.cloudflare.com/workers/runtime-apis/handlers/\n    at chunks/index_DXfsLD0r.mjs:142:26\n    at randomChar (chunks/index_DXfsLD0r.mjs:230:27)\n    at encodeRandom (chunks/index_DXfsLD0r.mjs:174:15)\n    at ulid (chunks/index_DXfsLD0r.mjs:247:41)\n    at chunks/specifications_iCWK4BKj.mjs:1137:29"

"18:15:34 [ERROR] Error: Disallowed operation called within global scope. Asynchronous I/O (ex: fetch() or connect()), setting a timeout, and generating random values are not allowed within global scope. To fix this error, perform this operation within a handler. https://developers.cloudflare.com/workers/runtime-apis/handlers/\n    at chunks/index_DXfsLD0r.mjs:142:26\n    at randomChar (chunks/index_DXfsLD0r.mjs:230:27)\n    at encodeRandom (chunks/index_DXfsLD0r.mjs:174:15)\n    at ulid (chunks/index_DXfsLD0r.mjs:247:41)\n    at chunks/specifications_iCWK4BKj.mjs:1137:29"

"18:15:34 [ERROR] Error: Disallowed operation called within global scope. Asynchronous I/O (ex: fetch() or connect()), setting a timeout, and generating random values are not allowed within global scope. To fix this error, perform this operation within a handler. https://developers.cloudflare.com/workers/runtime-apis/handlers/\n    at chunks/index_DXfsLD0r.mjs:142:26\n    at randomChar (chunks/index_DXfsLD0r.mjs:230:27)\n    at encodeRandom (chunks/index_DXfsLD0r.mjs:174:15)\n    at ulid (chunks/index_DXfsLD0r.mjs:247:41)\n    at chunks/specifications_iCWK4BKj.mjs:1137:29"

this means?

Z

ZachHandley•2/11/25, 6:28 PM

it seems like it's mad at ulid, which is weird, cause it's ulidx, and compatible with everything afaik

L

LearnNMake•2/12/25, 2:33 AM

I need to send realtime player count data to a database on cloudflare. Does cloudflare support the setup of a websocket server that will listen for a connection and can feed a D1 database?

币

币成•2/12/25, 3:17 AM

我用谷歌帐号登录的，验证邮箱时收不到验证码如何处理？

ZZachHandley ```ts "18:15:34 [ERROR] Error: Disallowed operation called within global scope. ...

A

Acе•2/13/25, 11:23 AM

It means you can’t use fetch or connect when the script is initiated.

LLearnNMake I need to send realtime player count data to a database on cloudflare. Does clou...

A

Acе•2/13/25, 11:24 AM

Yes

BBigFungus Hello. There does not seem to have deployment and versioning endpoints for worke...

A

Acе•2/13/25, 11:29 AM

Correct. It’s not supported, but you can create your own versioning system.

AAcе It means you can’t use fetch or connect when the script is initiated.

Z

ZachHandley•2/13/25, 5:09 PM

yeah turns out it was something super dumb

Z

ZachHandley•2/13/25, 5:09 PM

I had a package I created where if the user didn't provide an $id it would use

ulid

ulid

ulid

ulid from

ulidx

ulidx

ulidx

ulidx which was browser safe but

Z

ZachHandley•2/13/25, 5:09 PM

not cloudflare safe

A

Aster•2/16/25, 7:19 PM

Hey! Is there a way to try out WfP for free?

I want to create a PoC to see how far I can build on top of it

AAster Hey! Is there a way to try out WfP for free? 🙂 I want to create a PoC to see ho...

Z

Zetax•2/17/25, 3:29 AM

Would also love to know this

LLearnNMake I need to send realtime player count data to a database on cloudflare. Does clou...

Z

Zetax•2/17/25, 5:49 AM

Yes, it does

S

scruffy•2/18/25, 1:45 PM

Hi! Couple of quick questions...

What's the best way to delete a static asset from a user worker? I believe it's possible by creating an upload session and including all the assets except the one you want to remove, but is there something neater, e.g. like
```
DELETE
```
DELETE
```
DELETE
```
DELETE
to
```
/accounts/{accountIdentifier}/workers/scripts/{scriptName}/assets/{assetKey}
```
/accounts/{accountIdentifier}/workers/scripts/{scriptName}/assets/{assetKey}
```
/accounts/{accountIdentifier}/workers/scripts/{scriptName}/assets/{assetKey}
```
/accounts/{accountIdentifier}/workers/scripts/{scriptName}/assets/{assetKey}
but for user workers?
If you hit the maximum number of assets for a user worker (which I believe is 20,000 assets), how is it handled? Does it error or does it evict assets, e.g. via FIFO or similar?

Sscruffy Hi! Couple of quick questions... 1. What's the best way to delete a static asset...

H

Hard@Work•2/18/25, 1:51 PM

Your suggestion is the best one at the moment. You can't edit files within a deployment, but you can create a new deployment that doesn't include the asset in question.
It should fail the deployment.

S

scruffy•2/18/25, 1:52 PM

^ thanks for the quick and simple answers

S

scruffy•2/18/25, 2:16 PM

If I wanted to enable users to upload their avatar to

example.my.worker.dev/:user-name/avatar.png

example.my.worker.dev/:user-name/avatar.png

example.my.worker.dev/:user-name/avatar.png

example.my.worker.dev/:user-name/avatar.png?
Could I use a dispatch worker which calls a single script as the user worker, which makes an upload session request on behalf of the user. If not, where am I going wrong? If it is possible, would I be capped at 20k users?

Sscruffy If I wanted to enable users to upload their avatar to `example.my.worker.dev/:us...

H

Hard@Work•2/18/25, 2:18 PM

I would probably just upload the images to R2/KV. They have much nicer APIs, and you wouldn't have to mess with creating scripts/deployments dynamically

HHard@Work I would probably just upload the images to R2/KV. They have much nicer APIs, and...

S

scruffy•2/18/25, 2:30 PM

Sorry for the contrived example but I'm trying to keep it simple rather than diving into the specific use case, which I have a hunch would be better served by static assets on workers for platforms. With that in mind, is the approach in the previous question possible? (I'd normally just sketch it out in code, but am trying to avoid paying $25 to find the answer, especially if the answer is "nope")

Sscruffy Sorry for the contrived example but I'm trying to keep it simple rather than div...

H

Hard@Work•2/18/25, 2:32 PM

Maybe, though I should note that Assets is built primarily to serve HTML/JS/CSS, and while it can serve other assets, using it primarily to serve non-HTML/CSS/JS assets may run afowl of the terms

has anyone tried to use some of https://workers.cloudflare.com/playground for users to write WfP Use

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