Hey y'all 👋 so Cloudflare announced support for [building full stack apps](https://developers.clou

Hey y'all

so Cloudflare announced support for building full stack apps in their recent dev week. I noticed most frameworks are supported, I'm curious if there are plans to support Tanstack Start too?

Cloudflare Docs

Full-stack frameworks are now Generally Available on Cloudflare Wor...

David Calavera•4/24/25, 6:41 PM

cross posting here a question I have about using worker bindings on Pages functions just in case someone in this channel knows what the problem can be: Fetch inside a worker fails if the worker is invoked via a Pages function binding I'll really appreciate some help

IIan Hey y'all 👋 so Cloudflare announced support for [building full stack apps](htt...

Danny•4/25/25, 2:38 AM

Anyone have experience migrating NextJS applications to Cloudflare? Pricing looks attractive. Where would you migrate to, cloudflare pages or cloudflare workers?

Ricky U•4/25/25, 7:04 AM

Can someone help me about how to get Secrets Store working locally? workers-and-pages-helpSecret Store In Local Dev Mode?

Puliczek•4/25/25, 7:46 AM

Guys, I have a question. Is it possible to add Vectorize Dimensions and Metric value in the 'deploy to Cloudflare' config? Check out my repo: https://github.com/Puliczek/mcp-memory. There's an extra note on setting up Vectorize, but I would like to do it programmatically. Is it possible?

Ccrossbeau even more odd. I ran a printenv and my secrets are populated, but my env vars ar...

Rostislav•4/25/25, 11:08 AM

We have the same problem. Did you figure this out?

RRostislav We have the same problem. Did you figure this out?

crossbeau•4/25/25, 11:38 AM

Lol… just set all our values to secrets… so silly that we need to convert all values to secrets to expose to build env, which isnt even documented as to being the case. The docs made it seem as if they would be available

Ccrossbeau Lol… just set all our values to secrets… so silly that we need to convert all va...

Rostislav•4/25/25, 11:50 AM

it was available before.. seems that they've changed the secrets behavior secretly

Rostislav•4/25/25, 11:52 AM

I suppose it's related to the new "Secrets Store"

OOSC Hopefully someone at Cloudflare will shut those peeps down before someone gets s...

DaniFoldi•4/25/25, 11:56 AM

?abuse Please report it using this form

SuperHelpflare•4/25/25, 11:56 AM

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DDanny Anyone have experience migrating NextJS applications to Cloudflare? Pricing look...

Ashley•4/25/25, 11:58 AM

Workers with Static Assets, but it’s moving to use OpenNext with the latest update here: https://blog.cloudflare.com/deploying-nextjs-apps-to-cloudflare-workers-with-the-opennext-adapter/ (but it’s still beta)

The Cloudflare Blog

Deploy your Next.js app to Cloudflare Workers with the Cloudflare a...

With the 1.0-beta release of the Cloudflare adapter for OpenNext, you can host your Next.js 14 and 15 applications on Cloudflare Workers.

RRostislav it was available before.. seems that they've changed the secrets behavior secret...

crossbeau•4/25/25, 1:14 PM

Well its more of env var behavior not secrets

Ccrossbeau Well its more of env var behavior not secrets

Rostislav•4/25/25, 2:28 PM

I know.. just like the wordplay

RRostislav I know.. just like the wordplay

crossbeau•4/25/25, 2:29 PM

Touche

Avi•4/25/25, 10:20 PM

is there any way to force a worker to run in a particular region?

Avi•4/25/25, 10:21 PM

or prevent a worker from running in a particular region?

AAvi or _prevent_ a worker from running in a particular region?

Hard@Work•4/25/25, 10:28 PM

https://developers.cloudflare.com/data-localization/regional-services/

Cloudflare Docs

Regional Services · Data Localization Suite docs

Regional Services gives you the ability to accommodate regional restrictions by choosing which subset of data centers decrypt and service HTTPS traffic.

Avi•4/25/25, 10:36 PM

thanks @Hard@Work - and do you know if there's a way to check (from within a DO) where it was spawned?

Avi•4/25/25, 10:37 PM

i assume req.cfreq.cf would indicate the location of the where the request came from, not where it was served from

seflanka•4/25/25, 10:37 PM

Is there any ETA on when Cloudflare SQL D1 clusters will be available in Brazil? When can we expect Cloudflare SQL D1 infrastructure to be available in Brazil?

AAvi thanks @Hard@Work - and do you know if there's a way to check (from within a DO...

Chaika•4/25/25, 10:42 PM

Fetch https://cloudflare.com/cdn-cgi/trace within DO and see the colo=colo= line for location

CChaika Fetch https://cloudflare.com/cdn-cgi/trace within DO and see the `colo=` line fo...

Avi•4/25/25, 10:44 PM

interesting- is there any documentation/commitment to support that? or is that just a clever trick?

Sseflanka Is there any ETA on when Cloudflare SQL D1 clusters will be available in Brazil?...

Chaika•4/25/25, 10:45 PM

Cloudflare doesn't really do ETAs, not until something is very close. D1 depends on Durable Objects being in the location. They talked about supporting South America and India supported by the end of 2025 but obviously that never happened, would assume it's still something they're working towards though

seflanka•4/25/25, 10:47 PM

tanks for the help

AAvi interesting- is there any documentation/commitment to support that? or is that ...

Chaika•4/25/25, 10:48 PM

I don't think it's documented anywhere but can't imagine they'd ever mess with it too much. Fundamentally you're fetching inside of the Durable Object, routing to another location wouldn't make sense. Afaik rn it's all handled on the same machine that the durable object is on. It's been a thing for years now
Fetching /cdn-cgi/trace and parsing it is something cloudflare itself does as well on some of their pages/utilities.

AAvi thanks @Hard@Work - and do you know if there's a way to check (from within a DO...

Hard@Work•4/25/25, 10:53 PM

Here's a one-liner:

((await (await fetch("https://www.cloudflare.com/cdn-cgi/trace")).text()).match(/^colo=(.+)/m) as string[])[1]

((await (await fetch("https://www.cloudflare.com/cdn-cgi/trace")).text()).match(/^colo=(.+)/m) as string[])[1]

HHard@Work Here's a one-liner: ```ts ((await (await fetch("https://www.cloudflare.com/cdn-c...

Avi•4/25/25, 11:01 PM

heh, thanks. actually the locloc seems quite useful too

Avi•4/25/25, 11:01 PM

i'm gonna throw all that into sentry tags and see how those values compare to req.cf.locationreq.cf.location

AAvi i'm gonna throw all that into sentry tags and see how those values compare to `r...

Hard@Work•4/25/25, 11:05 PM

The req.cfreq.cf value is set in the first Worker in the chain. It isn't modified if you pass the request on to another Worker(via Service Bindings) or a Durable Object

HHard@Work The `req.cf` value is set in the first Worker in the chain. It isn't modified if...

Avi•4/25/25, 11:16 PM

in other words, it woul dindicate the location the request came from, not necessraily the location the DO was served from, right?

AAvi in other words, it woul dindicate the location the request came from, not necess...

Hard@Work•4/25/25, 11:17 PM

Yep(and note too that the location is derived from the IP of the incoming request, which may not necessarily be accurate)

Avi•4/25/25, 11:47 PM

strange, even though cdn-cgi/tracecdn-cgi/trace shows my colo is FRAFRA (France), OpenAI is still rejecting my requests when I connect via a VPN to Hong Kong

Avi•4/25/25, 11:47 PM

its like somehow it... knows

Avi•4/25/25, 11:47 PM

yet the DO is apparently definitely running in a supported region (France is supported, HK is not)

Avi•4/25/25, 11:47 PM

i just can't figure out how this is possible

AAvi strange, even though `cdn-cgi/trace` shows my colo is `FRA` (France), OpenAI is ...

Hard@Work•4/25/25, 11:51 PM

FRAFRA is Frankfurt in Germany. But also, iirc, requests from Workers still pass along a connecting IP header, and I'm wondering if that also happens for the DO

Avi•4/25/25, 11:51 PM

ahhh

Avi•4/25/25, 11:51 PM

iiinteresting

Avi•4/25/25, 11:52 PM

@Hard@Work like, all outgoing

fetch

fetch

requests from a DO might include, without my explicit configuration, a header indicating the IP the incoming request originated from?

AAvi @Hard@Work like, all outgoing `fetch` requests from a DO might include, without...

Hard@Work•4/25/25, 11:53 PM

That's what I'm guessing might be happening

Hard@Work•4/25/25, 11:53 PM

Also might be some other kind of detection system, idk

Chaika•4/25/25, 11:55 PM

Looks like openai does use cf for their API as well

HHard@Work That's what I'm guessing *might* be happening

Avi•4/25/25, 11:58 PM

i just set up a server that will print all headers of incoming requests and im gonna test this

Avi•4/26/25, 12:06 AM

aha!

Avi•4/26/25, 12:06 AM

  'cf-ipcountry': 'HK',

  'cf-ipcountry': 'HK',

NNico With email workers, is it possible to do gmail style plus addressing? That is, o...

Nico•4/26/25, 1:11 AM

Just wondering about this still - With email workers, is it possible to do gmail style plus addressing? That is, once I bind my worker to an email "route", can I use the example@mydomain.com and example+foo@mydomain.com to send email to that worker?

NNico Just wondering about this still - With email workers, is it possible to do gmail...

Hello, I’m Allie!•4/26/25, 4:36 AM

https://developers.cloudflare.com/email-routing/postmaster/

Cloudflare Docs

Postmaster · Cloudflare Email Routing docs

Reference page with postmaster information for professionals, as well as a known limitations section.

Hello, I’m Allie!•4/26/25, 4:36 AM

Sorry wrong link

Hey y'all 👋 so Cloudflare announced support for [building full stack apps](https://developers.clou

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