What you mean by domain doesn't exists ? I have received many email on a valid address and inserted

What you mean by domain doesn't exists ?
I have received many email on a valid address and inserted into my D1, only issue with with catch-all doesn't work for non-exists address.

VVikash What you mean by domain doesn't exists ? I have received many email on a valid a...

Hello, I’m Allie!•3/22/24, 11:20 AM

That is ticketdesk.aiticketdesk.ai. You sent an email to ticketdek.aiticketdek.ai

Hello, I’m Allie!•3/22/24, 11:20 AM

You forgot the

in deskdesk

HHello, I’m Allie!That is `ticketdesk.ai`. You sent an email to `ticketdek.ai`

VikashOP•3/22/24, 11:23 AM

Oops, sorry about that. But same response after correction as well.

VikashOP•3/22/24, 11:25 AM

This is my email worker and code -

VVikash Oops, sorry about that. But same response after correction as well.

Hello, I’m Allie!•3/22/24, 11:39 AM

Just to confirm, what if you send an email from an address that isn't blocked?

Hello, I’m Allie!•3/22/24, 11:39 AM

It shouldn't show that error, but maybe...

HHello, I’m Allie!It shouldn't show that error, but maybe...

VikashOP•3/22/24, 11:44 AM

That works fine, I can see message in logs. But the catch-all doesn't work and I need to read all the inbound email and decide to insert / reject on worker. Instead CF reject it before the email is reaching to my worker.

VVikash That works fine, I can see message in logs. But the catch-all doesn't work and I...

Hello, I’m Allie!•3/22/24, 11:45 AM

No, I meant send an email to

customer-2@ticketdesk.ai

customer-2@ticketdesk.ai

from an email that isn't

vikash.rathee@gmail.com

vikash.rathee@gmail.com

HHello, I’m Allie!No, I meant send an email to `customer-2@ticketdesk.ai` from an email that isn't...

VikashOP•3/22/24, 11:46 AM

Ohh, i am not sending from

vikash.rathee@gmail.com

vikash.rathee@gmail.com

, that's not my email id. Just an example in array.

Piero512•3/22/24, 12:52 PM

Do you know if the dart support for workers is any good?

Piero512•3/22/24, 12:53 PM

It's just that the main works a little like a deprecated JS entrypoint

Piero512•3/22/24, 12:56 PM

ie. the startup script looks like the service workers flow.

Piero512•3/22/24, 12:58 PM

and also the js bindings are extremely basic

GoodluckH•3/22/24, 7:09 PM

let's say i have 10000 active users. And I need to do some jobs for each of them, ideally concurrently. wondering if this is achieveable using cf workers?

i looked at the Limits page, it says the limit is 6 for Simultaneous outgoing
connections/request, that sounds pretty limiting

should i programatically create and deploy many workers so i distribute load among workers?

GGoodluckH let's say i have 10000 active users. And I need to do some jobs for each of them...

Chaika•3/22/24, 7:12 PM

it's 6 per invocation/incoming request

Chaika•3/22/24, 7:13 PM

If your 10k active users all send http requests to your worker at the same time, Workers have no issue handling that load, and each of those requests has 6 Simultaneous outgoing requests it can make

GoodluckH•3/22/24, 7:14 PM

what does outgoing requests mean?

GoodluckH•3/22/24, 7:15 PM

like performing http requests inside of the worker?

GGoodluckH like performing http requests inside of the worker?

Chaika•3/22/24, 7:15 PM

yea

Chaika•3/22/24, 7:15 PM

the docs has really good detail on that: https://developers.cloudflare.com/workers/platform/limits/#simultaneous-open-connections

Cloudflare Docs

Limits · Cloudflare Workers docs

Cloudflare Workers plan and platform limits.

GoodluckH•3/22/24, 7:16 PM

ok sounds good, thanks for the help!

OOmark Hello, I need to find a way how can i configure the following: i have a worker t...

Chaika•3/22/24, 7:25 PM

like allowing customers to cname from anydomain.com -> service.mydomain.com to allow them to use custom domains?

OOmark yes exactly

Chaika•3/22/24, 7:27 PM

Sounds like you want CF for SaaS: https://developers.cloudflare.com/cloudflare-for-platforms/cloudflare-for-saas/,
https://developers.cloudflare.com/cloudflare-for-platforms/cloudflare-for-saas/start/advanced-settings/worker-as-origin/
You have to specifically setup each Customer Domain though, can do it through the API though. For example, all Shopify Custom Domains use CF For SaaS

Cloudflare Docs

Workers as your fallback origin · Cloudflare for Platforms docs

Learn how to use a Worker as the fallback origin for your SaaS zone.

Cryptic Jack•3/22/24, 8:23 PM

anyone know of a way to automatically generate a schema for an openAPIRoute using a sample of json?

Cryptic Jack•3/22/24, 8:23 PM

for this library @cloudflare/itty-router-openapi

sirhype•3/22/24, 8:52 PM

If I'm worried about a Worker getting spammed (not a strong concern, just a thought), is there a way to protect against that before it hits the worker to save cost? It's not a huge deal since Workers are inexpensive. But are there options?

Ssirhype If I'm worried about a Worker getting spammed (not a strong concern, just a thou...

Cyb3r-Jak3•3/22/24, 9:42 PM

You can use rate limiting rules. https://developers.cloudflare.com/waf/rate-limiting-rules/

Cloudflare Docs

Rate limiting rules · Cloudflare Web Application Firewall (WAF) docs

Rate limiting rules allow you to define rate limits for requests matching an expression, and the action to perform when those rate limits are reached.

sirhype•3/22/24, 9:45 PM

Ah thank you so much!

SageSphinx63920•3/23/24, 11:54 AM

Anyone experienced this issue with email workers before

Unknown error: permanent error (521): 5.5.2 mail.sageee.xyz Error: bare <LF> received

Unknown error: permanent error (521): 5.5.2 mail.sageee.xyz Error: bare <LF> received

SageSphinx63920•3/23/24, 11:55 AM

Trying to sent a message to my mail address with

mail.sageee.xyz

mail.sageee.xyz

being my mail server but i do not know why it is not working as sending mails to smth like outlook or gmail does work

SageSphinx63920•3/23/24, 12:18 PM

This is my postfix log

SageSphinx63920•3/23/24, 7:35 PM

fixed this

SageSphinx63920•3/23/24, 7:36 PM

But now i have this error

could not obtain a forward upstream: Failed to connect to egress transport: no usable transport

could not obtain a forward upstream: Failed to connect to egress transport: no usable transport

when sending mails to a specific mail provider

SageSphinx63920•3/23/24, 7:36 PM

Can anyone help with this

GoodluckH•3/23/24, 8:24 PM

why would i need a queue if i can invoke wokers millions of times a day? let's say every day i have 10000 active users each needs to get info from 100 websites. so a worker basically just scrape the info.

in this case can't i just do a 10,000 * 100 for loop to call my worker 1 million times?

GGoodluckH why would i need a queue if i can invoke wokers millions of times a day? let's s...

Chaika•3/23/24, 8:53 PM

Queues are for more reasons for that,
to start with, you get 1k subrequests per worker invocation, only 6 at one time, and Workers can only call workers up to a certain depth (I forgot what, exactly). The user may disconnect before all your requests are done.

Queues also are for instances where your backend can't handle it at all at once. They let you trade off latency for throughput.

GoodluckH•3/23/24, 8:54 PM

interesting. how did you get 1k subrequests?

Chaika•3/23/24, 8:55 PM

The limits are on here: https://developers.cloudflare.com/workers/platform/limits/

Cloudflare Docs

Limits · Cloudflare Workers docs

Cloudflare Workers plan and platform limits.

GoodluckH•3/23/24, 8:56 PM

got it! thanks!

SSageSphinx63920 Anyone experienced this issue with email workers before `Unknown error: permanen...

DarkDeviL•3/23/24, 11:20 PM

Was this the one you referred to with "fixed this"?

If not, you need to look around in you chain, all from where you are putting the message together, and to the point where you're seeing that error.

Somewhere in that chain, it appears that you're ending lines in your code just with

\n

\n

(

<LF>

<LF>

), which must be changed to

\r\n

\r\n

(

<CR><LF>

<CR><LF>

Silent•3/24/24, 12:54 AM

Is it possible to return a seperate html file as a response and have it show that?

SSilent Is it possible to return a seperate html file as a response and have it show tha...

Walshy•3/24/24, 1:06 AM

Yep, you can import the file and return it (it'll be uploaded as a module)

E.g.

import indexHtml from './pages/index.html';

export default {
  fetch(req) {
    const { pathname } = new URL(req.url);

    if (pathname === '/') {
      return new Response(indexHtml, { headers: { 'Content-Type': 'text/html' }});
    }

    return new Response('404 Not Found', { status: 404 });
  }
}

import indexHtml from './pages/index.html';

export default {
  fetch(req) {
    const { pathname } = new URL(req.url);

    if (pathname === '/') {
      return new Response(indexHtml, { headers: { 'Content-Type': 'text/html' }});
    }

    return new Response('404 Not Found', { status: 404 });
  }
}

(Wrote on phone so won't be perfect)

DDarkDeviL Was this the one you referred to with "fixed this"? If not, you need to look ar...

SageSphinx63920•3/24/24, 7:26 AM

This is fixed the second problem sadly not

SageSphinx63920•3/24/24, 7:27 AM

I have absolutely no clue what’s wrong because I can not find Thai online somewhere

thanhle•3/24/24, 1:49 PM

i really love workers and really enjoy using it. my question is: is there anyway I deploy a worker but dont go to egde network. I want the workers only deployed to a specific region not global. I try to use smart placement but not help. the reason I want to deploy worker to a specific region is when I benchmark the query Postgresql database by using CloudFlareWorker and AWS Lamba(aws lambda is deployed to only one region), the response time for aws lambda is TWICE FASTER than that of cloudflare workers. Thank you all.

alotabits•3/24/24, 2:07 PM

The Cache API allows interaction with the same cache used for fetch requests via caches.default. Is it possible to get or put the entries in this cache for a particular device type in a manner compatible with cache-by-device-type settings?

What you mean by domain doesn't exists ? I have received many email on a valid address and inserted

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