Cloudflare Developers•2y ago

Functions can only handle fetch events atm

HHello, I’m Allie!Functions can only handle fetch events atm

Ian•5/21/24, 8:18 AM

Too bad, I hope workers and functions get unified. I guess I’ll need to set up Lerna or Turborepo for now.

IIan Too bad, I hope workers and functions get unified. I guess I’ll need to set up L...

IEatBeans•5/21/24, 4:05 PM

Yea I really hope they do too. It’s annoying to have to have a separate worker just for random things like cron

IEatBeans•5/21/24, 6:48 PM

What would be the best way to run a task a few minutes after a function executes? I was thinking either a cron task (in workers) that runs every 5 minutes and checks for a list of scheduled tasks in the database, or a durable object with alarms?

IIEatBeans What would be the best way to run a task a few minutes after a function executes...

Hello, I’m Allie!OP•5/21/24, 7:41 PM

DO Alarm would be more scalable

Hello, I’m Allie!OP•5/21/24, 7:41 PM

And IMO easier to set up too

tmcltr•5/23/24, 4:45 AM

What's the best way to send mail from a Pages instance?

Ttmcltr What's the best way to send mail from a Pages instance?

Ian•5/23/24, 5:19 AM

Create a function which you can send a POST to that calls an email API like SendGrid to send the email for you. You need the function so that you can use secrets/api keys (passed in through environment variables) that should not be revealed in the frontend.

Ian•5/23/24, 5:22 AM

If this function is for something like a contact form that is exposed to the public (you don't have to log in to use it), then take extra precautions to prevent abuse. Add CSRF prevention and rate limiting.

Ian•5/23/24, 5:24 AM

Even though it's a single endpoint, you might want to consider using a microframework like Hono since it has built in middleware you can apply that does CORS, CSRF, and there's a 3rd party rate limiter middleware as well.

Martin 0x522E•5/23/24, 8:49 AM

Hey folks, how can it be that one of my functions (it's proxying a websocket request) sometimes produces exceptions which the log stream doesn't show? Like I would have expected the logs or the exceptions array to contain something...

IIan Even though it's a single endpoint, you might want to consider using a microfram...

tmcltr•5/23/24, 7:03 PM

I'll look into this! Thank you

Ttmcltr I'll look into this! Thank you

Ian•5/23/24, 8:05 PM

no problem. I've got quite a bit of experience with Hono in Page functions so feel free to ask me questions about it here.

MMartin 0x522E Hey folks, how can it be that one of my functions (it's proxying a websocket req...

Martin 0x522E•5/24/24, 12:49 PM

this is happening hundreds of times per hour, so that's really concerning...

Tricked•5/24/24, 1:30 PM

Isn't there like a request duration limit? Might be related?

jjjrmy•5/24/24, 2:02 PM

Is there any way to use

"node_compat"

"node_compat"

within the wrangler.toml?
I'm not getting the same compatability between Pages Functions and Workers.

Jjjjrmy Is there any way to use `"node_compat"` within the wrangler.toml? I'm not gettin...

Hello, I’m Allie!OP•5/24/24, 2:03 PM

Not on Pages, no

jjjrmy•5/24/24, 2:03 PM

so what can I do? I'm not able to use some libraries that I am able to use on Workers

Jjjjrmy so what can I do? I'm not able to use some libraries that I am able to use on Wo...

Hello, I’m Allie!OP•5/24/24, 2:04 PM

Put them in a Worker, then call it with a Service Binding?

jjjrmy•5/24/24, 2:04 PM

I guess ... but that seems going opposite of the whole Nuxt building for Pages setup

jjjrmy•5/24/24, 2:07 PM

this isn't a feature that can be supported by CF? Seems weird that Functions and Workers isn't 1:1

Isaac McFadyen•5/24/24, 2:31 PM

node_compat

node_compat

(which is done with standard polyfills that increase the size of your Worker) is slowly being fazed out in favor of

nodejs_compat

nodejs_compat

(which is built into the runtime)

Isaac McFadyen•5/24/24, 2:32 PM

I expect that's why there's no target of feature-parody there.

jjjrmy•5/24/24, 2:32 PM

the package I'm having issues with is

Knex

Knex

GGuidetoamerica.info fix your cloudflare docs zzzz

Ian•5/25/24, 7:05 AM

I know getting stuck is frustrating, but coming in hot and yelling about it doesn't make anyone want to help you. Outline the problem, what versions of Sveltekit you're using, explain CLEARLY what steps you took and what isn't working, etc. Also, Sveltekit has their own tutorial https://kit.svelte.dev/docs/adapter-cloudflare-workers

SvelteKit docs

Cloudflare Workers • SvelteKit documentation

IIan I know getting stuck is frustrating, but coming in hot and yelling about it does...

Hello, I’m Allie!OP•5/25/24, 7:06 AM

Note, you probably want https://kit.svelte.dev/docs/adapter-cloudflare instead

SvelteKit docs

Cloudflare Pages • SvelteKit documentation

tmcltr•5/25/24, 5:03 PM

This is perhaps too general of a question, but often when I look for docs and info about how to set up and use Pages Functions, I get docs for Workers intead. I know there's a lot of overlap, but it's not clear to me exactly how to adapt info about Workers to apply to Functions. Are there some general guidelines, or docs that discuss this?

Ttmcltr This is perhaps too general of a question, but often when I look for docs and in...

Hello, I’m Allie!OP•5/25/24, 5:05 PM

Clarifying Question: are you using any kind of framework for your project?

HHello, I’m Allie!Clarifying Question: are you using any kind of framework for your project?

tmcltr•5/25/24, 5:09 PM

Usually Hugo, but I have successfully set up and used functions in projects that don't use a framework, too. To be slightly more specific, I've managed to get my functions talking with Stripe checkout and Google scripts, but not Respond or Mimetext.

bub_zy•5/29/24, 11:32 PM

Do functions support python? I see the documentation covers javascript and typescript, but I didn't see any mention of python (or I'm blind).

James•5/29/24, 11:41 PM

They don’t unfortunately, no. https://docs.google.com/spreadsheets/d/1T7j7FZZO7zmkrEegzhMeMtlFPIh-efYGMc7BuenMPWY/htmlview# is a good reference for what works where on Cloudflare’s developer platform

JJames They don’t unfortunately, no. https://docs.google.com/spreadsheets/d/1T7j7FZZO7z...

bub_zy•5/29/24, 11:44 PM

Thanks.

Ian•5/29/24, 11:56 PM

You could theoretically transpile python to WASM but that would come with all sorts of limitations on dependencies and such

DDavid Charles I have one question. What type of Sentry support for page function. I don't know...

flyingshoes•5/30/24, 8:17 PM

did you ever figure this out?

Fflyingshoes did you ever figure this out?

Ian•5/31/24, 7:28 AM

You can use sentry for page functions. I'm using it with Hono.

import { Hono } from 'hono'
import { sentry } from '@hono/sentry'

const app = new Hono<{ Bindings: Bindings }>({ strict: false })

app.use('*', sentry({ debug: true }))

import { Hono } from 'hono'
import { sentry } from '@hono/sentry'

const app = new Hono<{ Bindings: Bindings }>({ strict: false })

app.use('*', sentry({ debug: true }))

Ian•5/31/24, 7:30 AM

The above code injects sentry onto the context, so inside your routes you can do

app.get('/call-sentry', async(c) => {
  c.get('sentry').captureException('Something happened, tell Sentry!')
})

app.get('/call-sentry', async(c) => {
  c.get('sentry').captureException('Something happened, tell Sentry!')
})

IIan You can use sentry for page functions. I'm using it with Hono. ```typescript imp...

flyingshoes•5/31/24, 6:08 PM

hmm, does this auto-capture uncaught exceptions as well?

Fflyingshoes hmm, does this auto-capture uncaught exceptions as well?

Ian•5/31/24, 6:24 PM

It can catch some that fall through, but you can also add it to an onError()onError() handler.

IIan It can catch some that fall through, but you can also add it to an `onError()` h...

flyingshoes•5/31/24, 6:35 PM

gotcha. I'm pretty new to hono/CF ecosystem. So a very dumb question:

If you're running your application on Cloudflare Workers, set a binding value named SENTRY_DSN, which will be used as the DSN.

how did you do this? did you do anything in your

wrangler.toml

wrangler.toml

file?

Fflyingshoes gotcha. I'm pretty new to hono/CF ecosystem. So a very dumb question: > If you'...

Ian•5/31/24, 6:44 PM

you can put that in your

wrangler.toml

wrangler.toml

file or

.dev.vars

.dev.vars

file

IIan you can put that in your `wrangler.toml` file or `.dev.vars` file

flyingshoes•5/31/24, 6:48 PM

I've put it in there and am able to access the url, but I'm unable to access the instance: c.get('sentry')c.get('sentry') -- that returns empty

flyingshoes•5/31/24, 6:49 PM

(and thank you so much for your help)

flyingshoes•5/31/24, 6:53 PM

jk, I got it. thank you!

Ian•5/31/24, 6:56 PM

https://github.com/honojs/middleware/tree/main/packages/sentry This was what I followed

GitHub

middleware/packages/sentry at main · honojs/middleware

monorepo for Hono third-party middleware/helpers/wrappers - honojs/middleware

IIan https://github.com/honojs/middleware/tree/main/packages/sentry This was what I f...

flyingshoes•5/31/24, 7:20 PM

got it. yeah, I got the errors firing into sentry. how did you handle source maps by chance?

Functions can only handle fetch events atm

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