Hello! Does Cloudflare have any existing standards/best practices for creating a back-end API with W

Hello! Does Cloudflare have any existing standards/best practices for creating a back-end API with Workers that can be written in Go? From what I've read, if you want to use Go with Workers, sounds like you'll need to convert it to WebAssembly but having some trouble finding examples of a Worker using Go

Ggooseman12 Hello! Does Cloudflare have any existing standards/best practices for creating a...

Cyb3r-Jak3•12/21/23, 10:40 PM

Never used it but there is https://github.com/syumai/workers

Ffranc Can anyone help me how to upload php files on cloudflareworker?

Cyb3r-Jak3•12/21/23, 10:40 PM

Please don't ask the same question in multiple channels

liam | helius.dev•12/22/23, 2:13 AM

If I call an LB endpoint from within a worker, will WAF rate limiting rules apply to that LB endpoint?

liam | helius.dev•12/22/23, 2:13 AM

Or is it skipped because its calling it from within the worker?

Vikash•12/22/23, 8:42 AM

Any suggestion on getting plain IP address from the request header?

When I use request.headers.get("CF-Connecting-IP")request.headers.get("CF-Connecting-IP"), in a worker it prints -

"ip": "2a06:98c0:3600::103",

"ip": "2a06:98c0:3600::103",

I jut want the plain IP, something like 198.0.0.1198.0.0.1

VVikash Any suggestion on getting plain IP address from the request header? When I use ...

Cyb3r-Jak3•12/22/23, 9:05 AM

If a user connects via IPv6 then the connecting IP will be an IPv6 one.

CCyb3r-Jak3 If a user connects via IPv6 then the connecting IP will be an IPv6 one.

Vikash•12/22/23, 9:07 AM

That' my IP. when i check on https://whatismyipaddress.com/ it show the IPv4 as well. Any way to convert v6 to v4?

WhatIsMyIPAddressdemo

What Is My IP Address? IP Address Tools and More

IP address lookup, location, proxy detection, email tracing, IP hiding tips, blacklist check, speed test, and forums. Find, get, and show my IP address.

VVikash That' my IP. when i check on https://whatismyipaddress.com/ it show the IPv4 as ...

Cyb3r-Jak3•12/22/23, 9:10 AM

They are 2 entirely different things and you can’t get an IPv4 from IPv6 or vice versa.

Cyb3r-Jak3•12/22/23, 9:11 AM

You’d have to disable IPv6 on your zone to prevent users from connecting via IPv6, but would affect all your other sites. Also think you need pro plan for it.

CCyb3r-Jak3 They are 2 entirely different things and you can’t get an IPv4 from IPv6 or vice...

Vikash•12/22/23, 9:18 AM

There is a setting in Network tab, what does that do? I was expecting it will add IPv4 as per the description.

VVikash There is a setting in Network tab, what does that do? I was expecting it will ad...

Chaika•12/22/23, 1:41 PM

As a stopgap to accelerate the adoption of IPv6, Cloudflare offers Pseudo IPv4 which supports IPv6 addresses in legacy applications expecting IPv4 addresses. The goal is to provide a nearly unique IPv4 address for each IPv6 address, using Class E IPv4 address space, which is designated as experimental and would not normally see traffic

It just generates a fake one

VVikash There is a setting in Network tab, what does that do? I was expecting it will ad...

Hello, I’m Allie!•12/22/23, 4:25 PM

And afaik, since Workers support IPv6, then that won't do anything anyway

HHello, I’m Allie!And afaik, since Workers support IPv6, then that won't do anything anyway

Chaika•12/22/23, 4:28 PM

hmm what do you mean by that? They run behind proxy, you can have V4/V6 only workers ex: https://v4.chaika.me/, https://v6.chaika.me/, have to use Ent Spectrum though.
Free plan can still disable IPv6 last I checked, should make any workers v4 only (on that zone/domain via routes or custom domains). Can't do that for v6 though without Spectrum

CChaika hmm what do you mean by that? They run behind proxy, you can have V4/V6 only wo...

Hello, I’m Allie!•12/22/23, 4:31 PM

I meant in that case specifically, since Workers are the "origin"(and they support both), it should still return IPv6

dave•12/22/23, 7:04 PM

Sanity check, am I allowed to use the Cache API for non-HTML content? i.e. binaries.

dave•12/22/23, 7:08 PM

https://blog.cloudflare.com/updated-tos/

So I know using the Cache API with R2 is definitely allowed... but what about Cache API + Backblaze B2?

Ddave https://blog.cloudflare.com/updated-tos/ So I know using the Cache API with R2 ...

Hello, I’m Allie!•12/22/23, 7:40 PM

IIRC, since Workers is DevPlat, then yes

HHello, I’m Allie!IIRC, since Workers is DevPlat, then yes

dave•12/22/23, 9:21 PM

Finally, we made it clear that customers can serve video and other large files using the CDN so long as that content is hosted by a Cloudflare service like Stream, Images, or R2.

Ahh so the blog says this (no mention of DevPlat), but it looks like you're right when you look here:

https://www.cloudflare.com/service-specific-terms-application-services/

Cloudflare offers specific Paid Services (e.g., the Developer Platform, Images, and Stream) that you must use in order to serve video and other large files via the CDN.

Thanks!

Ddave > Finally, we made it clear that customers can serve video and other large files...

Chaika•12/22/23, 9:24 PM

iirc we talked about this before and the answer is probably no because of this additional factor mentioned in the blog post

Video and large files hosted outside of Cloudflare will still be restricted on our CDN

https://blog.cloudflare.com/updated-tos/

CChaika iirc we talked about this before and the answer is probably no because of this a...

dave•12/22/23, 9:24 PM

yeah pretty sure we did

CChaika iirc we talked about this before and the answer is probably no because of this a...

dave•12/22/23, 9:24 PM

hmm, but the ToS (not blog) does mention Developer Platform.

ashutosh•12/23/23, 3:20 AM

One of my function is waiting for a promise to be resolved. Imagine it took 10 seconds for promise to be resolved in which the network call took 9 seconds to fetch the response. In this case, how much I would be billed for?

1. 1000 milliseconds OR
2. 10,000 milliseconds?

kian•12/23/23, 3:21 AM

Bundled? N/A (doesn't charge by duration)
Unbound? 10s (wall time)
Standard? 1s (CPU time)

ashutosh•12/23/23, 3:27 AM

With Standard pricing.

ashutosh•12/23/23, 3:28 AM

I think Bundled and Unbound will be discontinued in the future. Right?

Erisa•12/23/23, 3:30 AM

Correct, they will

Kkokoniara I wanted to make a one to many realtime updating dashboard on workers and it loo...

Ashley•12/23/23, 10:27 AM

There’s nothing stopping you from using WebSockets with a Worker, you just can’t hibernate them like you can a Durable Object, so you’ll be billed for as long as the Worker has an open websocket connection (using Standard Pricing, for example)

Ashley•12/23/23, 10:27 AM

FWIW the paid plan is only $5/month, so incredibly good value and a low barrier to entry

Ashley•12/23/23, 10:53 AM

Ah I see, yes sorry you’ll need Durable Objects for that type of coordination - should let my coffee sink in before replying!

Ashley•12/23/23, 10:55 AM

I guess technically you could use D1, store state in there and have each Worker poll for state change but it’s getting real dicey now esp. considering DO’s keep it much simpler

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😈 Donkey 💫•12/25/23, 11:35 AM

Hi,

I would like to send mail from workers via SES?
But its sdk client is kind of Nodejs compatible lib.

Any suggestion?

Erisa•12/25/23, 11:38 AM

You can try using

fetch()

fetch()

to send a request to https://docs.aws.amazon.com/ses/latest/dg/send-email-api.html

Using the Amazon SES API to send email - Amazon Simple Email Service

Use the Amazon SES API to send email through Amazon SES using HTTPS.

�😈 Donkey 💫Hi, I would like to send mail from workers via SES? But its sdk client is kind ...

Erisa•12/25/23, 11:39 AM

This example seems to imply that

@aws-sdk/client-ses

@aws-sdk/client-ses

works in workers: https://github.com/winstxnhdw/mail-worker

GitHub

GitHub - winstxnhdw/mail-worker: A mail worker built with Cloudflar...

A mail worker built with Cloudflare Workers and AWS SES. - GitHub - winstxnhdw/mail-worker: A mail worker built with Cloudflare Workers and AWS SES.

�

😈 Donkey 💫•12/25/23, 11:53 AM

Thanks for that, I'll give a try

! Iron Max•12/25/23, 4:48 PM

If you guy are free please checkout #Mail Routes I want to forward all mail recive

Tiebienotjuh•12/25/23, 7:47 PM

Hey, I would like to create an API that multiple people can use. People should be able to easily create a token and use it. This token should be linked to their "account". I first tried to do this with unkey, but the cost is too high for me because I think I need a fair amount of "verifications". I recently ran into the hono framework and plan to use it. What do you guys recommend to me?

Gagan Suie•12/26/23, 8:14 AM

Adding itty-router-openapi caused issues with jest tests in Cloudflare workers.

Here's the solution:

jest.config.ts

moduleNameMapper: {
'^(yaml|openapi3-ts|@asteasolutions/zod-to-openapi)$': '$1'
},

Scoop•12/26/23, 4:41 PM

hey not sure if this is the correct channel, i have a question about creating the A dns record for the IPv4 address i try and put the unraid server address but there is an error? guess im not meant to use that address?

SScoop hey not sure if this is the correct channel, i have a question about creating th...

Cyb3r-Jak3•12/26/23, 4:55 PM

Better would probably be #general-help if you are using a private ip address then you need to make sure the record isn’t going to be proxied or it will throw errors

Scoop•12/26/23, 4:55 PM

thanks ill ask the question there

Stefano•12/26/23, 11:32 PM

Is there a way to interpolate variable names in

.dev.vars

.dev.vars

?

Something like:

VAR_NAME=$VAR_NAME_FROM_SHELL_ENV

VAR_NAME=$VAR_NAME_FROM_SHELL_ENV

Stefano•12/26/23, 11:33 PM

Apparently,

.dev.vars

.dev.vars

is similar to dotenv. And this is possible in dotenv, but haven't been able to make it work in Wrangler.

kian•12/26/23, 11:41 PM

It just uses dotenv.parse to load them

Stefano•12/27/23, 12:14 AM

Ah. @kian Thanks for the heads up.

kian•12/27/23, 12:14 AM

I think the expansion stuff is from the add-on package, dotenv-expand, so not available in Wrangler

ottermanempire•12/27/23, 3:55 PM

is there a way to add more domains/subdomains to a worker programmatically via an API?

Hello! Does Cloudflare have any existing standards/best practices for creating a back-end API with W

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