There must be some way to gather metrics inside of a worker reliably.

Jjuri There must be some way to gather metrics inside of a worker reliably.

K

kian•12/19/23, 11:06 PM

It's intentionally not supposed to be possible.

K

kian•12/19/23, 11:06 PM

https://developers.cloudflare.com/workers/learning/security-model/#step-1-disallow-timers-and-multi-threading

F

Fizzy Kombucha•12/19/23, 11:43 PM

i am trying to build a sveltekit SSR app that will be deployed to pages. in my app i'm using mongodb. I can't build the project because the workers runtime apparently expects node js apis to be imported with the syntax 'node:crypto'. i have no control over how the mongodb client does its imports. i have no idea how to fix this or proceed.
related issue: https://community.cloudflare.com/t/cloudflare-pages-not-compatible-with-node-modules/566178
https://developers.cloudflare.com/workers/runtime-apis/nodejs

i am building my svelte kit app with 'CF_PAGES=1 vite build'.

Cloudflare Community

Cloudflare Pages not compatible with Node modules

I am having an error when deploying a SvelteKit app that uses some Node.js packages in the server. I get this error in the logs: The package “path” wasn’t found on the file system but is built into node. Are you trying to bundle for node? You can use “platform: ‘node’” to do that, which will remove this error. So, where do I have to use “plat...

Node.js compatibility · Cloudflare Workers docs

Implemented Node.js runtime APIs and enablement instructions for your Worker project.

F

Fizzy Kombucha•12/19/23, 11:43 PM

getting a bunch of errors like:

> Using @sveltejs/adapter-cloudflare
Starting mongo...
✘ [ERROR] Could not resolve "dns"

    node_modules/.pnpm/mongodb@6.3.0/node_modules/mongodb/lib/sdam/srv_polling.js:4:20:
      4 │ const dns = require("dns");
        ╵                     ~~~~~

  The package "dns" wasn't found on the file system but is built into node. Are you trying to bundle
  for node? You can use "platform: 'node'" to do that, which will remove this error.

✘ [ERROR] Could not resolve "stream"

> Using @sveltejs/adapter-cloudflare
Starting mongo...
✘ [ERROR] Could not resolve "dns"

    node_modules/.pnpm/mongodb@6.3.0/node_modules/mongodb/lib/sdam/srv_polling.js:4:20:
      4 │ const dns = require("dns");
        ╵                     ~~~~~

  The package "dns" wasn't found on the file system but is built into node. Are you trying to bundle
  for node? You can use "platform: 'node'" to do that, which will remove this error.

✘ [ERROR] Could not resolve "stream"

> Using @sveltejs/adapter-cloudflare
Starting mongo...
✘ [ERROR] Could not resolve "dns"

    node_modules/.pnpm/mongodb@6.3.0/node_modules/mongodb/lib/sdam/srv_polling.js:4:20:
      4 │ const dns = require("dns");
        ╵                     ~~~~~

  The package "dns" wasn't found on the file system but is built into node. Are you trying to bundle
  for node? You can use "platform: 'node'" to do that, which will remove this error.

✘ [ERROR] Could not resolve "stream"

> Using @sveltejs/adapter-cloudflare
Starting mongo...
✘ [ERROR] Could not resolve "dns"

    node_modules/.pnpm/mongodb@6.3.0/node_modules/mongodb/lib/sdam/srv_polling.js:4:20:
      4 │ const dns = require("dns");
        ╵                     ~~~~~

  The package "dns" wasn't found on the file system but is built into node. Are you trying to bundle
  for node? You can use "platform: 'node'" to do that, which will remove this error.

✘ [ERROR] Could not resolve "stream"

F

Fizzy Kombucha•12/19/23, 11:44 PM

i've been scouring google and can't seem to find a solution. was hoping someone here would know

F

Fizzy Kombucha•12/19/23, 11:50 PM

welp it looks like i found my answer. mongodb simply won't work on workers

https://www.mongodb.com/community/forums/t/cloudflare-workers-integration-is-now-possible/226708/11

MongoDB Developer Community Forums

Cloudflare Workers integration is now possible

Hi @Alex_Bjorlig, We are working with Cloudflare on this still, however at the moment we are blocked as Atlas requires TLS for all connections, however Cloudflare Workers only supports mTLS at the moment (and TLS cannot be disabled in Altas).

K

kian•12/20/23, 1:49 AM

nodejs_compat

nodejs_compat

nodejs_compat

nodejs_compat relies on them using the

node:

node:

node:

node: prefix when importing &

node_compat

node_compat

node_compat

node_compat are just best-effort polyfills.

K

kian•12/20/23, 1:49 AM

Puppeteer won't work in Workers unless you're using Cloudflare's fork with #browser-rendering-api-beta

F

Fizzy Kombucha•12/20/23, 1:51 AM

yea it really sucks. i built a small app with mongodb. was running it all locally and everything works fine. then i go to actually build and deploy it... now i have to swap out mongo for another db

K

kian•12/20/23, 1:55 AM

Workers can't spawn subprocesses or have a filesystem, so I don't think Puppeteer would ever work anyways.

K

kian•12/20/23, 1:55 AM

#browser-rendering-api-beta is a fork that talks to a remote browser hosted elsewhere on CF's infra

K

kian•12/20/23, 1:58 AM

You'd use CF's Puppeteer fork and pass it the binding, which then controls the remote browser.

K

kian•12/20/23, 1:58 AM

https://developers.cloudflare.com/browser-rendering/get-started/screenshots/#5-code

K

kian•12/20/23, 2:05 AM

What are you trying to do?

S

SSDD•12/20/23, 10:16 AM

can we turn off caching in cf workers?

Z

zegevlier•12/20/23, 10:25 AM

Worker responses aren't cached, what are you referring to?

Zzegevlier Worker responses aren't cached, what are you referring to?

S

SSDD•12/20/23, 10:30 AM

I have a worker deployed.. which executes graphql requests, it fetches data from other website which takes 1-3 secs.

1st request takes around the expected time but after that it's always ~300ms response time

S

SSDD•12/20/23, 10:32 AM

and I do not have any type of caching in the code that I deployed

Z

zegevlier•12/20/23, 10:44 AM

300ms seems very slow if it was actually caching the worker responses. Perhaps the GraphQL server your code is contacting is caching it?

M

mukhtharcm•12/20/23, 10:44 AM

Quick question #urgent

the daily limit of 100k request is a hard limit?

will the worker fail after that?

Z

zegevlier•12/20/23, 10:44 AM

Yup, hard limit.

Z

zegevlier•12/20/23, 10:45 AM

https://developers.cloudflare.com/workers/platform/limits/#daily-request

Zzegevlier Yup, hard limit.

M

mukhtharcm•12/20/23, 10:46 AM

Okk

Zzegevlier 300ms seems *very* slow if it was actually caching the worker responses. Perhaps...

S

SSDD•12/20/23, 12:28 PM

I don't code is caching.. ig I can put manual delay for each response to see if cf is caching

L

liam | helius.dev•12/20/23, 7:45 PM

What would cause a load balancer using proximity steering to send requests to pools in different locations (besides if a pool is unhealthy)? Shouldn't it be static?

S

Sam•12/20/23, 8:13 PM

Is it possible to combine a cronjob, queue and web api (hono) project in one folder?

Eg:

export default {
  fetch()
  scheduled()
  queue()
}

export default {
  fetch()
  scheduled()
  queue()
}

export default {
  fetch()
  scheduled()
  queue()
}

export default {
  fetch()
  scheduled()
  queue()
}

SSam Is it possible to combine a cronjob, queue and web api (hono) project in one fol...

H

Hello, I’m Allie!•12/20/23, 8:21 PM

Yes

U

Unsmart•12/20/23, 11:43 PM

Pretty sure you dont want to use clone for that.

Should just be:

new Response(response.body, { headers: {} })

new Response(response.body, { headers: {} })

new Response(response.body, { headers: {} })

new Response(response.body, { headers: {} })

https://developers.cloudflare.com/workers/examples/modify-response/

S

Skyy•12/21/23, 1:54 AM

Is there anyway to run a CRON trigger every 30 seconds? Or 2 with 1 being 30 seconds delayed?

SSkyy Is there anyway to run a CRON trigger every 30 seconds? Or 2 with 1 being 30 sec...

0

0x0dd154•12/21/23, 1:19 PM

await a promise in one job that resolves after 30s?

I

I AM UNDER ATTACK•12/21/23, 1:46 PM

hello, from 2 weeks i am facing high traffic load, which is comming from ddos attact, i have already enabled the proxy and i am under attack mode enabled, but still facing ddos attack on my server, my use goes very high, please help me to get out from this

00x0dd154 await a promise in one job that resolves after 30s?

S

Skyy•12/21/23, 1:48 PM

Worker Cron jobs have a max time of 30 seconds, So that wouldn't work?

I

I AM UNDER ATTACK•12/21/23, 1:51 PM

hello, from 2 weeks i am facing high traffic load, which is comming from ddos attact, i have already enabled the proxy and i am under attack mode enabled, but still facing ddos attack on my server, my use goes very high, please help me to get out from this

SSkyy Worker Cron jobs have a max time of 30 seconds, So that wouldn't work?

0

0x0dd154•12/21/23, 2:03 PM

Good point. This is probably a good use case for DO alarms, but if that's not already part of your toolbelt would be introducing more moving parts.

00x0dd154 Good point. This is probably a good use case for DO alarms, but if that's not al...

S

Skyy•12/21/23, 2:42 PM

Currently I'm not using any durable objects, So yeah, It would be implementing extra items to the workflow

SSkyy Is there anyway to run a CRON trigger every 30 seconds? Or 2 with 1 being 30 sec...

C

Chaika•12/21/23, 2:45 PM

DO Alarms would probably be easiest.
You can't use crons like that sadly, they're just not accurate on the seconds and as they move between being scheduled in one cloudflare location/colo they can shift by 10-30s

CChaika DO Alarms would probably be easiest. You can't use crons like that sadly, they'r...

S

Skyy•12/21/23, 3:04 PM

Ah, I was thinking it would have an offset at most like 10s, As I didn't really need precision timing. Okay, I'll look into DO

S

Skyy•12/21/23, 3:05 PM

Thank you guys!

J

jkomyno•12/21/23, 4:07 PM

Hi! Let's say I have a large-ish Wasm file (> 2MB) which I want to import in a JS cloudflare worker.
Such Wasm file goes down to a few hundred KB (< 1MB) after applying

zstd

zstd

zstd

zstd compression locally.
Is there a way of telling my CF worker to apply

zstd

zstd

zstd

zstd decompression when uploading my project's code to the hosted v8 isolate?
I've been looking at https://developers.cloudflare.com/workers/wrangler/custom-builds/ but I couldn't find a clear answer

Custom builds · Cloudflare Workers docs

Customize how your code is compiled, before being processed by Wrangler.

There must be some way to gather metrics inside of a worker reliably.

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