Cloudflare Developers•2mo ago

How many events per hour are you thinking of storing? On average

11984 Ford Laser How many events per hour are you thinking of storing? On average

trololo•10/31/25, 8:18 AM

at start 1k. But I think will be more in time

BigFungus•10/31/25, 9:24 AM

We are trying to setup a 24/7 realtime dashboard with workers that receive ~5 messages per minute. Does anyone have cost estimates using websockets? We are considering using SSE for reduced costs. Does that make a difference?

Ttrololo my use case is writing logs for customers for critical (and not only) actions wi...

dave•10/31/25, 4:54 PM

IMO use any S3 API provider you like, and https://github.com/mhart/aws4fetch in your Worker. Backblaze B2 would be my suggestion. It's $0.006/GB, or $0.012/GB if you want to do high availability by mirroring two buckets in different regions.

https://gist.github.com/Manouchehri/733e6235457e60de24fdbb15046fba7f

Add a lifecycle policy to the bucket that deletes files after 7 years.

Put each customer's files into like

s3_bucket_name/customer_id_here/2025/10/31/23/epoch_time_here_uuid-of-event-here.json

s3_bucket_name/customer_id_here/2025/10/31/23/epoch_time_here_uuid-of-event-here.json

. Then, when a customer wants say, the last two days of logs, you can do a ListObjectsV2 request to

s3_bucket_name/customer_id_here/2025/10/30/

s3_bucket_name/customer_id_here/2025/10/30/

and

s3_bucket_name/customer_id_here/2025/10/31/

s3_bucket_name/customer_id_here/2025/10/31/

to get all the JSON files of their events, which you can then use aws4fetch again to give the user presigned S3 URLs to download their events.

dave•10/31/25, 4:57 PM

Backblaze B2 also doesn't charge for uploading objects, so it's fine if you're uploading millions of small files to the same bucket. https://www.backblaze.com/cloud-storage/transaction-pricing

dave•10/31/25, 4:58 PM

And lastly, definitely use gzip for compressing JSON events! The user's browser (or the Worker) will automatically decompress it as long as you set the

content-encoding: gzip

content-encoding: gzip

when uploading.

geg•10/31/25, 7:51 PM

Am I correct to assume that MessageChannel API is safe way to send events between different requests the worker is handling? For example letting 2 websocket clients that hit the same worker isolate talk to eachother is now possible? I kind of did something like this before but by polling a global value

(circumventing the "Cannot perform I/O on behalf of a different request." error)

BBigFungus We are trying to setup a 24/7 realtime dashboard with workers that receive ~5 me...

1984 Ford LaserOP•10/31/25, 7:56 PM

SSE will be more expensive than Durable Objects with Hibernating WebSockets

Ggeg Am I correct to assume that MessageChannel API is safe way to send events betwee...

Isaac McFadyen•10/31/25, 7:58 PM

I believe it's request-scoped.

IIsaac McFadyen I believe it's request-scoped.

geg•10/31/25, 7:58 PM

I just tried it out and seems to work out, just asking here to be sure it's okay for future

Ggeg I just tried it out and seems to work out, just asking here to be sure it's okay...

Isaac McFadyen•10/31/25, 7:59 PM

Oh I see, if it works then it's probably fine to rely on

Isaac McFadyen•10/31/25, 7:59 PM

Keep in mind that there is absolutely 0 guarantees you'll hit the same datacenter or even that there won't be multiple copies of a Worker running in a datacenter.

Tito•11/1/25, 1:26 AM

is there a place for suggestions? if not, can we please allow more than 50 api keys or have it not on by default when creating a worker :3

TTito is there a place for suggestions? if not, can we please allow more than 50 api k...

texan•11/1/25, 2:19 AM

#workers-and-pages-feature-suggestions

Ttexan #workers-and-pages-feature-suggestions

Tito•11/1/25, 2:27 AM

ty will :CoolCat: also surprised you ain't on here (https://who-to-bother-at.com/cloudflare) same w/ Walshy

unless you not on X

texan•11/1/25, 2:28 AM

I’m definitely hit and miss on activeness in discord. But yeah also no twitter for me, and not even in the same ballpark as many of the CF folks here!

11984 Ford Laser SSE will be more expensive than Durable Objects with Hibernating WebSockets

BigFungus•11/1/25, 5:00 PM

Oh right I forgot about hibernating websockets thanks you saved us a lot of Dev time

! priyansh ★•11/1/25, 5:58 PM

is there any good resource to learn about cloudflare workers

! priyansh ★•11/1/25, 5:58 PM

as i want to implement wildcard subdomains for my project

!! priyansh ★as i want to implement wildcard subdomains for my project

Hello, I’m Allie!•11/1/25, 6:19 PM

https://developers.cloudflare.com/workers

Cloudflare Docs

Cloudflare Workers

With Cloudflare Workers, you can expect to:

jumanji•11/1/25, 6:57 PM

Guys how to purge page cash data because its display old site

Tito•11/1/25, 11:33 PM

currently running like 4 cf mcp server's is there a way it doesn't need to just load up all the auth's up? seems to happen like once every few hours.

! priyansh ★•11/2/25, 1:42 PM

is this possibe to route all subdomains of a domain to the worker which has no dns records?
i tried but it is also routing all non records subdomains and also proxied subdomains

Sebastian Long•11/2/25, 4:17 PM

Hello! I'm having a problem with functions, I'm trying to create a webapp that use function to connect to D1 but when I do a post to the function it fails with 404

-----•11/3/25, 5:01 PM

Hello, is it possible to use WASM (Web Assembly) on cloudflare pages?

1984 Ford LaserOP•11/4/25, 1:17 AM

What are people's email sending service of choice to use with Workers? I know the closed beta of the new email product is coming this month, but don't wanna wait around too long for access. I will be sending around 100 emails a week, and the addresses will always be from the same set of users more or less (would prefer to not need a manual confirmation from users to be allowed to accept email from service). No plans to scale higher, so something with a free tier or something is best. The content will be a templated HTML or something similar depending what the service requires

------Hello, is it possible to use WASM (Web Assembly) on cloudflare pages?

1984 Ford LaserOP•11/4/25, 4:22 AM

This might be of interest
pages-discussions

Dubz•11/4/25, 4:35 AM

idk if this is new or I'm just blind, but whomever added this here, THANK YOU!

Dubz•11/4/25, 5:31 AM

I changed my cron to run every 5 minutes but it won't run now despite showing the correct "next run time" :NotLikeThis:

Dubz•11/4/25, 5:32 AM

ofc now it is lmao nvm

Dubz•11/4/25, 6:25 AM

Building tomorrow :dogekek:
(my computer time syncs with time.cloudflare.com so idk lmao)

DDubz Building tomorrow :dogekek: (my computer time syncs with time.cloudflare.com so ...

1984 Ford LaserOP•11/4/25, 9:18 AM

There was just a discussion in #off-topic about the CF NTP servers not being great

11984 Ford Laser There was just a discussion in #off-topic about the CF NTP servers not being gre...

Dubz•11/4/25, 9:30 AM

ah, good call. thanks lol

1984 Ford LaserOP•11/4/25, 10:16 AM

Would it be against ToS to ingest a video stream (fMP4) from Stream using a DO and something like mp4box, then send the video frames as bytes over WebSockets to listening clients and then the clients re-create the streams using Media Source Extensions?

11984 Ford Laser This might be of interest https://discord.com/channels/595317990191398933/789155...

-----•11/4/25, 1:42 PM

Is it with workers?

-----•11/4/25, 1:42 PM

or can i just deploy .wasm files to pages

Asutosh Panda•11/4/25, 2:15 PM

hey folks, new to the cf platform
have deployed a few static sites on the pages
but now when I tried to deploy something more, getting a bunch of errors
the app is in nextjs, fetches real estate info from a google sheet

so far tried to use edge runtime, nothing was on the depoyed URL
api routes work fine in local but becomes messy when I use functions, nothing loads on the app

used this guide - https://developers.cloudflare.com/workers/framework-guides/web-apps/nextjs/#deploy-an-existing-nextjs-project-on-workers
no luck with this as well, have been trying in local, the preview or run dev commands dont bring up the app in the respeactive port
shared the screenshot with project structure and errors as well

what else is missing or going wrong here, can anyone please help out to make this work with wrangler locally, then I will jump to the deployed one
please let me know what else do I need to share to give more context

Asutosh Panda•11/4/25, 2:16 PM

dave•11/4/25, 9:01 PM

After removing my

* * * * *

* * * * *

cron schedule several minutes ago, I see it's still being trigger..

dave•11/4/25, 9:01 PM

is there an outage or something?

Ddave After removing my `* * * * *` cron schedule several minutes ago, I see it's stil...

Hard@Work•11/4/25, 9:03 PM

IIRC cron updates take a bit of time to propagate

Hard@Work•11/4/25, 9:04 PM

Specifically adding/removing

Isaac McFadyen•11/4/25, 9:05 PM

I believe there is a cron for the cron Worker updates (yes actually) :lul:

Chaika•11/4/25, 9:06 PM

Changes such as adding a new Cron Trigger, updating an old Cron Trigger, or deleting a Cron Trigger may take several minutes (up to 15 minutes) to propagate to the Cloudflare global network.

CCelestial Rose hey ! this is kind of a n00b question but asking anyway 😂 i am using caches.def...

Celestial Rose•11/4/25, 10:03 PM

whoops confused workflows and workers channels, x-posting here

Dubz•11/5/25, 12:31 AM

Is there a way to limit build run time for deployments? Sometimes mine glitches and runs endlessly but usually only takes around 30-40 seconds to complete.

11984 Ford Laser There was just a discussion in #off-topic about the CF NTP servers not being gre...

Dubz•11/5/25, 8:37 AM

apparently I was using time.cloudflare..comtime.cloudflare..com this entire time

George Clasher•11/5/25, 8:43 AM

Can I keep my cf worker sleep 180 seconds and then send response, I have paid plan

Dubz•11/5/25, 8:54 AM

Also apparently Windows 11 just isn't working with NTP sync. Also having DNS service dropping randomly for this computer. Idk just all around screwy. So I guess it's all on my end after all lmao.

Fixed that, had to re-register the w32tm service apparently even though it was acting normal otherwise. Good ol' Windows ig.

How many events per hour are you thinking of storing? On average

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