Cloudflare #workers-discussions

Murder Chicken

05/21/2023, 5:26 PM

Any easy way to inspect the Request object created? Suddenly, this block of code (where

requests

is an array of Request objects)...

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const responseData = await Promise.all(requests.map(request => fetch(request).then(r => r.json())))

... no longer works resulting in this error...

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Cannot read properties of undefined (reading 'map')
TypeError: Cannot read properties of undefined (reading 'forEach')

Which has me baffled... trying to figure out where it's failing.

Skye

05/21/2023, 5:27 PM

Could you share more code?

Murder Chicken

05/21/2023, 5:28 PM

Yeah, just realized it's incomplete, one sec.

Murder Chicken

05/21/2023, 5:34 PM

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export async function example() {
  const endpoints = generateEndpoints() // returns a simple array of string URLs to fetch
  let requests = endpoints.map(endpoint => new Request(endpoint, { headers: { cookie } }))
  let responses = await Promise.all(requests.map(request => fetch(request).then(r => r.json())))
  let data = responses.map(response => processResponse(response['records']))
  let records = data.flat(3)
  records.forEach(a => {
    // Failure is this forEach
  })
}

Murder Chicken

05/21/2023, 5:36 PM

I think I got it.

Murder Chicken

05/21/2023, 5:37 PM

Looks like the response changed and I failed to check for a data structure update in the response.

Murder Chicken

05/21/2023, 5:38 PM

I'm good! Thanks for responding so quickly @Skye (as always)

Skye

05/21/2023, 5:38 PM

Glad to help, even if I didn't see this until you worked it out 😅

Murder Chicken

05/21/2023, 5:40 PM

hahaha, all good. I have to comment on how much I appreciate that you're always immediately responding to questions. Learning the platform can be difficult at times but you're constantly out there answering questions and assisting. It's really helpful.

Skye

05/21/2023, 5:50 PM

Murder Chicken

05/21/2023, 6:28 PM

Is it possible to trigger a worker

scheduledEvent

from a development environment similar to the

--test-scheduled

flag and hitting the

__scheduled

route locally?

James

05/21/2023, 6:36 PM

In dev, miniflare used to support hitting

/cdn-cgi/mf/scheduled

but I don't believe that's a thing anymore with v3 unfortunately.

Dani Foldi

05/21/2023, 6:38 PM

it'll be reimplemented in v3 soon

Murder Chicken

05/21/2023, 7:02 PM

locally in v3, it works fine, just add the

--test-scheduled

flag and hit the

__scheduled

route at the root of the domain. but once it's pushed to a development environment in CF, you have to wait for the event to trigger so I was hoping we could somehow trigger it manually.

stan

05/21/2023, 8:06 PM

with the new TCP connections thing, i'm wondering if it would make sense to keep a postgres connection alive in a durable object as to not have to spin a new one for every worker run?

stan

05/21/2023, 8:07 PM

i havent worked with DOs before but this kinda seems like something it would be good for

James

05/21/2023, 8:07 PM

Yep that would make a lot of sense to me

silence

05/21/2023, 10:49 PM

is there a way to make a pages site use unbounded usage model in local dev eg

npx wrangler pages dev...

if it was a workers function i would put

usage_model="unbound"

in my wrangler.toml

tobytraylor

05/22/2023, 12:38 AM

hey all, new to cloudflare, building a solidjs app, i'm trying to fiture out how to run locally with miniflare or otherwise against the production data (KV, etc). Instead of running againts local data. been searching, can't figure out how.

idv

05/22/2023, 3:51 AM

i made my website anti ddos i added a lot of rules is there a way i can copy the cloudflare rules onto another website of mine?

05/22/2023, 3:55 AM

Hi folks, I bought a domain name from cloudflare this month, and use pages to host my web site, it's awseome! I'm now learning how to use WASM as serverless solution, and found that cloudflare supports Wasm now: https://developers.cloudflare.com/workers/platform/web-assembly/ Just out of curiosity, does any one what's the different of the Wasm solution between fastly and CF? I mean, it would be better to describe the difference in high level, I wanna to to convince my boss to use one of it: https://www.fastly.com/blog/unlocking-real-time-at-the-edge

Matt

05/22/2023, 5:01 AM

Is bunnynet a good tool to use if I want to test global latency into my cloudflare workers?

Alaanor

05/22/2023, 9:02 AM

Is it now possible to have logpush enable for page's worker ?

Isaac McFadyen | YYZ01

05/22/2023, 11:55 AM

Please don't cross-post across channels.

MmaZik

05/22/2023, 12:26 PM

Hi guys, I'm developing 2 workers for the same project/account, in a Service Binding fashion. When deployed, the workers A is successfully able to call B. But locally, the Service Binding is actually

undefined

. Anyone can help? I have no idea why it can't see each other when running locally. This is my env during dev, for Workers A (caller):

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[env.dev]
vars = { ENVIRONMENT = "dev", ENV = "dev" }
services = [
  { binding = "SERVICES", service = "workers-services", environment = "dev" }
]

And this is for Workers B (being called):

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[env.dev]
name = "workers-services"
vars = { ENVIRONMENT = "dev", ENV = "dev" }

When I run with

--remote

(using Wrangler v3.0.0), I get this error: **text: 'workers.api.error.service_binding_env_error: could not resolve binding "SERVICES": environment "dev" not found for service "workers-services" [code: 10144]'** These are however separate project, one is Bundled (A) and one is Unbound (B). One is nodejs compat (B), one is not (A).

MmaZik

05/22/2023, 12:28 PM

When running with

--remote

, it spits out the error message just a short time after starting. When running locally (which is the default since wrangler v3.0.0 I assume), the

env.SERVICE

is undefined. Running live, no problem.

banbanboi

05/22/2023, 1:34 PM

i am just new with this and learning, I just want to ask, if is it possible to call a CF Worker that will generate a presignedURL (upload to CF R2). The file that I am going to upload will come to a web UI fileupload.

sathoro

05/22/2023, 2:34 PM

pretty sure there are example of this exact scenario in the R2 docs right?

banbanboi

05/22/2023, 2:45 PM

I am still reading the documentation and at the same time creating a worker base code for this.

BenParr

05/22/2023, 2:59 PM

I am trying to add a secret to cf worker via ci/cd. Can I set it after using wrangler secret put. I dont want to have to add in an echo in powershell as this could be a security issue. How can I set secrets via cli?