So this is allowed on the default Workers Free plan. Each API call might take a second, but you can

IIsaac McFadyen So this is allowed on the default Workers Free plan. Each API call might take a ...

J

Joy•3/1/24, 7:25 PM

The API will get resolve in few ms. But then I have to wait for 1s before I make another one. So my question is will this 1s be treated as CPU time or wall time?

JJoy The API will get resolve in few ms. But then I have to wait for 1s before I make...

I

Isaac McFadyenOP•3/1/24, 7:25 PM

Wall time. CPU time is only the work that the actual CPU does (processing power, basically) so waiting for a second or waiting on an outgoing request will not consume CPU time.

IIsaac McFadyen Wall time. CPU time is only the work that the actual CPU does (processing power,...

J

Joy•3/1/24, 7:43 PM

Alright. Let me try it then.
Also thank you so much for helping me out.

B

bun•3/1/24, 8:09 PM

when doing local worker development and using R2. I see that

.wrangler/state/v3/r2

.wrangler/state/v3/r2

.wrangler/state/v3/r2

.wrangler/state/v3/r2 is created containing my files, but are they only accessible through the binding? does wrangler cli run some alternative local server to serve files ?

C

Cyb3r-Jak3•3/1/24, 8:12 PM

Wrangler local commands should also use it or you can use miniflare directly

B

bun•3/1/24, 8:12 PM

to launch a r2 server ?

C

Cyb3r-Jak3•3/1/24, 8:17 PM

What do you mean by launch a server? Wrangler doesn’t have a way to serve them over http if that’s what you’re looking for

W

Walshy•3/1/24, 9:53 PM

you should set

compatibility_flags = ["nodejs_compat"]

compatibility_flags = ["nodejs_compat"]

compatibility_flags = ["nodejs_compat"]

compatibility_flags = ["nodejs_compat"] rather than node_compat

(compat flags uses runtime node APIs,

node_compat

node_compat

node_compat

node_compat uses polyfills)

then usage would just be like

import { createHash } from 'node:crypto';

function sha256(text) {
  return createHash('sha256').update(text).digest('hex')
}

import { createHash } from 'node:crypto';

function sha256(text) {
  return createHash('sha256').update(text).digest('hex')
}

import { createHash } from 'node:crypto';

function sha256(text) {
  return createHash('sha256').update(text).digest('hex')
}

import { createHash } from 'node:crypto';

function sha256(text) {
  return createHash('sha256').update(text).digest('hex')
}

P

piffie•3/1/24, 10:16 PM

Is there a reason why github wrangler-action per default uses an old version of wrangler for deployment?

B

bun•3/2/24, 12:14 AM

when doing

fetch

fetch

, one of the enterprise features is to cache the fetch by a specific cacheKey, although for non-enterprise customers, what is the cache key instead? the URL ? or the request object as a whole?

O

Oreki•3/2/24, 8:20 AM

i am using the package

ts-mixer

ts-mixer

ts-mixer

ts-mixer to extend class from 2 different classes, however i am getting the error

Uncaught TypeError: Cannot read properties of undefined (reading 'prototype')
    at null.<anonymous>

Uncaught TypeError: Cannot read properties of undefined (reading 'prototype')
    at null.<anonymous>

Uncaught TypeError: Cannot read properties of undefined (reading 'prototype')
    at null.<anonymous>

Uncaught TypeError: Cannot read properties of undefined (reading 'prototype')
    at null.<anonymous>

which is an error only occuring when deploying to cloudflare?

O

Oreki•3/2/24, 8:21 AM

is this something yet not supported by workers?

N

Nitish•3/2/24, 9:44 AM

can someone help me i wanna make server less api to upload image to r2

N

Nitish•3/2/24, 9:45 AM

im getting confused with wrangler

N

Nitish•3/2/24, 9:48 AM

I have setup r2 bucked and i can upload and access it using aws s3

N

Nitish•3/2/24, 9:49 AM

but its running on ec2 instace now i wanna make upload fn to be run on serverless and i have no idea whats wrangler

N

Nitish•3/2/24, 9:49 AM

and docs are bit confusing for me :/

Original message was deleted

O

Oreki•3/2/24, 9:57 AM

basically extending a class from two different class and re-exporting it

/**
 * A class representing a SlashCommandSubcommandBuilder which is a mix of VesperaMixins and DISCORDJSSlashCommandSubcommandBuilder functionalities.
 * @mixes VesperaMixins
 * @mixes DISCORDJSSlashCommandSubcommandBuilder
 */
@mix(VesperaMixins, DISCORDJSSlashCommandSubcommandBuilder)
export class SlashCommandSubcommandBuilder<T extends unknown> {}

/**
 * A class representing a SlashCommandSubcommandBuilder which is a mix of VesperaMixins and DISCORDJSSlashCommandSubcommandBuilder functionalities.
 * @mixes VesperaMixins
 * @mixes DISCORDJSSlashCommandSubcommandBuilder
 */
@mix(VesperaMixins, DISCORDJSSlashCommandSubcommandBuilder)
export class SlashCommandSubcommandBuilder<T extends unknown> {}

/**
 * A class representing a SlashCommandSubcommandBuilder which is a mix of VesperaMixins and DISCORDJSSlashCommandSubcommandBuilder functionalities.
 * @mixes VesperaMixins
 * @mixes DISCORDJSSlashCommandSubcommandBuilder
 */
@mix(VesperaMixins, DISCORDJSSlashCommandSubcommandBuilder)
export class SlashCommandSubcommandBuilder<T extends unknown> {}

/**
 * A class representing a SlashCommandSubcommandBuilder which is a mix of VesperaMixins and DISCORDJSSlashCommandSubcommandBuilder functionalities.
 * @mixes VesperaMixins
 * @mixes DISCORDJSSlashCommandSubcommandBuilder
 */
@mix(VesperaMixins, DISCORDJSSlashCommandSubcommandBuilder)
export class SlashCommandSubcommandBuilder<T extends unknown> {}

0

0xidigwu•3/2/24, 1:04 PM

I have a wasm file

work.wasm

work.wasm

work.wasm

work.wasm which i am trying to import into my worker, but it keeps failing with "Invalid URL string error"

async function handleRequest(request) {
    const go = new Go();
    try {
        WebAssembly.instantiateStreaming(fetch("work.wasm"), go.importObject).then((result) => {
            go.run(result.instance);
        })

        if (!instance.exports.handleRequest) {
            return new Response("Go function 'handleRequest' not found", { status: 500 });
        }

        return new Response("Hey!!!", { status: 200 });
    } catch (error) {
        console.error(error);
        return new Response("Error instantiating WebAssembly module", { status: 500 });
    }
}

async function handleRequest(request) {
    const go = new Go();
    try {
        WebAssembly.instantiateStreaming(fetch("work.wasm"), go.importObject).then((result) => {
            go.run(result.instance);
        })

        if (!instance.exports.handleRequest) {
            return new Response("Go function 'handleRequest' not found", { status: 500 });
        }

        return new Response("Hey!!!", { status: 200 });
    } catch (error) {
        console.error(error);
        return new Response("Error instantiating WebAssembly module", { status: 500 });
    }
}

async function handleRequest(request) {
    const go = new Go();
    try {
        WebAssembly.instantiateStreaming(fetch("work.wasm"), go.importObject).then((result) => {
            go.run(result.instance);
        })

        if (!instance.exports.handleRequest) {
            return new Response("Go function 'handleRequest' not found", { status: 500 });
        }

        return new Response("Hey!!!", { status: 200 });
    } catch (error) {
        console.error(error);
        return new Response("Error instantiating WebAssembly module", { status: 500 });
    }
}

async function handleRequest(request) {
    const go = new Go();
    try {
        WebAssembly.instantiateStreaming(fetch("work.wasm"), go.importObject).then((result) => {
            go.run(result.instance);
        })

        if (!instance.exports.handleRequest) {
            return new Response("Go function 'handleRequest' not found", { status: 500 });
        }

        return new Response("Hey!!!", { status: 200 });
    } catch (error) {
        console.error(error);
        return new Response("Error instantiating WebAssembly module", { status: 500 });
    }
}

Please does any one have an idea of what could be wrong

S

Stepqen•3/2/24, 3:09 PM

Anyone got a custom worker that sends a message to a discord webhook?

Looking at setting up an email but want a way to monitor these emails for if I don't get the email notification

H

Hello, I’m Allie!•3/2/24, 3:16 PM

!remind 1hr workers-and-pages-discussions

F

Flare•3/2/24, 3:16 PM

:zep_check: I will remind you in 1 hour at Mar 2, 2024 at 17:16 CET

B

bun•3/2/24, 4:04 PM

!remind 12m #workers-discussions

F

Flare•3/2/24, 4:04 PM

:zep_check: I will remind you in 12 minutes at Mar 2, 2024 at 16:16 UTC

B

bun•3/2/24, 4:04 PM

gg ?

SStepqen Anyone got a custom worker that sends a message to a discord webhook? Looking a...

H

Hello, I’m Allie!•3/2/24, 4:13 PM

I don't have a specific example(though I'm pretty sure I've done it before). What I would do is use a tool like https://discohook.org to build out a message body, then copy the resulting JSON over into a Worker, and modify/add templating as needed

Discohook

The easiest way to personalise your Discord server.

S

Stepqen•3/2/24, 4:14 PM

Okay, is there a list of set variables anywhere that I can pull and put into the embed?

SStepqen Okay, is there a list of set variables anywhere that I can pull and put into the...

H

Hello, I’m Allie!•3/2/24, 4:15 PM

I would probably check out https://canary.discord.com/developers/docs/resources/webhook#execute-webhook

Discord Developer Portal

Discord Developer Portal — API Docs for Bots and Developers

Integrate your service with Discord — whether it's a bot or a game or whatever your wildest imagination can come up with.

S

Stepqen•3/2/24, 4:15 PM

Referring to the CloudFlare email variables

F

Flare•3/2/24, 4:16 PM

Reminder for @HardlyWorkin': workers-and-pages-discussions
Set March 2, 2024

S

Stepqen•3/2/24, 4:16 PM

For example, the senders email, the subject / body of the email

F

Flare•3/2/24, 4:16 PM

Reminder for @bun: #workers-discussions
Set March 2, 2024

SStepqen Referring to the CloudFlare email variables

H

Hello, I’m Allie!•3/2/24, 4:18 PM

This is the data you can pull out: https://developers.cloudflare.com/email-routing/email-workers/runtime-api/#syntax-es-modules. For the body, you could pass

message.raw

message.raw

message.raw

message.raw into a Response object to parse it as text

Cloudflare Docs

Runtime API · Cloudflare Email Routing docs

An EmailEvent is the event type to programmatically process your emails with a Worker. You can reject, forward, or drop emails according to the logic …

S

Stepqen•3/2/24, 4:18 PM

Thank you!

C

charlie•3/3/24, 12:40 AM

With the way that service bindings work, am I right to assume that it's safe to allow using the global

fetch

fetch

to user-provided URLs? I'm so used to that being a disaster in terms of SSRF that it feels wrong, but I think with workers it should be safe?

Ccharlie With the way that service bindings work, am I right to assume that it's safe to ...

H

Hello, I’m Allie!•3/3/24, 1:11 AM

Global Fetch doesn’t pass through service bindings, if that is what you mean, so I would be careful

C

charlie•3/3/24, 1:14 AM

Basically one of the things I'm going to need to build soon is outbound webhooks. With the new queue stuff it should be pretty straightforward to do. So unless I'm misunderstanding the security model, not going through service bindings should be what I want so that things like durable objects are inaccessible

C

charlie•3/3/24, 1:16 AM

I specifically don't want to be able to fetch any internal services

Ccharlie Basically one of the things I'm going to need to build soon is outbound webhooks...

H

Hello, I’m Allie!•3/3/24, 1:55 AM

Kind of? An external request should never be able to access any internal services directly, unless you naievely pass them through

H

Hello, I’m Allie!•3/3/24, 2:00 AM

But like, a valid pattern could be to pass a URL into a service binding, then having said binding make the call to a receiving server

C

charlie•3/3/24, 2:01 AM

Sorry, I don't think I explained very well. It won't be requests originating from the internet. Rather originating from within the worker. So it would basically be

- get webhook URL from DB
- build payload
- post payload to URL

But what I'm wondering is if the global fetch has any way of accessing anything other than the public internet and if it's safe to pass an untrusted URL

Ccharlie Sorry, I don't think I explained very well. It won't be requests originating fro...

H

Hello, I’m Allie!•3/3/24, 2:02 AM

It would also have firewall-free access to your origin, if you have one

H

Hello, I’m Allie!•3/3/24, 2:02 AM

But no, it can’t interact with your bindings

C

charlie•3/3/24, 2:02 AM

Ah there would be no origin

C

charlie•3/3/24, 2:03 AM

And I also just found this

First, we can now restrict the global fetch() function to accept only publicly-routable URLs. This makes applications totally immune to SSRF attacks! You cannot trick an application into accessing an internal service unintentionally if the code to access internal services is explicitly different.

from here https://blog.cloudflare.com/workerd-open-source-workers-runtime

The Cloudflare Blog

Introducing workerd: the Open Source Workers runtime

workerd is the JavaScript/Wasm runtime code that powers Cloudflare Workers, now open source under the Apache 2.0 license.

C

charlie•3/3/24, 2:04 AM

Sounds almost too good to be true haha. This is going to be the easiest implementation ever

Ccharlie Sounds almost too good to be true haha. This is going to be the easiest implemen...

H

Hello, I’m Allie!•3/3/24, 2:06 AM

Note though that this is specifically for the Workers runtime, and not the Workers Product. While you can configure the runtime to allow access to internal services, on Workers itself this should not be possible

H

Hello, I’m Allie!•3/3/24, 2:06 AM

Not least since said internal services aren’t really yours to access either

So this is allowed on the default Workers Free plan. Each API call might take a second, but you can

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