Cloudflare Developers•3y ago

KV doesnt work with --local, what does --preview do if I can use --env staging --env production etc

vassbenceOP•7/1/23, 10:07 PM

I'd love to see a bit of streamlining

Vvassbence KV doesnt work with --local, what does --preview do if I can use --env staging -...

Hello, I’m Allie!•7/1/23, 10:08 PM

What version of wranglerwrangler are you running?

Hello, I’m Allie!•7/1/23, 10:09 PM

Because wrangler previewwrangler preview is still a thing in the latest version of wranglerwrangler, but there isn't a --preview--preview flag.

Hello, I’m Allie!•7/1/23, 10:09 PM

And KV should work fine locally. It won't pull values from production KV, but it should still work

vassbenceOP•7/1/23, 10:09 PM

wrangler dev using KV saves to local sqlite

vassbenceOP•7/1/23, 10:10 PM

and I cant put into this same local sqlite KV with wrangler kv

vassbenceOP•7/1/23, 10:10 PM

it just goes to the preview KV which is online

vassbenceOP•7/1/23, 10:12 PM

(already reported on github)

bkyerv•7/2/23, 10:02 AM

I'm finding myself uncertain about the optimal way to kick off a new project using Wrangler. Trying to utilize init leads to a deprecation warning and an advice to switch to cloudflare@2. Does this suggest that the wrangler CLI tool is being supplanted by the cloudflare@2 package? Additionally, when choosing react as the framework to develop a web project, create-react-app is the tool offered for building react-based projects. Is there any specific rationale behind not incorporating vite as an option or an alternative to create-react-app for constructing a React application? Does the team managing cloudflare@2 consider create-react-app as more appropriate for react-based applications compared to those built on vite?

Rroman Hi everyone! I'm developing with `wrangler dev` and found that I cannot securely...

Hello, I’m Allie!•7/2/23, 10:35 PM

You can generate the .dev.vars file before starting the dev session, if that is what you mean?

Erisa•7/3/23, 9:23 AM

https://developers.cloudflare.com/workers/wrangler/api/#unstable_dev

API · Cloudflare Workers docs

Wrangler offers an experimental API to programmatically manage your Cloudflare Workers.

Vero•7/3/23, 3:38 PM

Hey devs, @Wrangler office hours will start soon, join us to ask questions about Wrangler, Quick Edit, workerd, miniflare, etc.
https://discord.gg/cloudflaredev?event=1121506821874659478

Nick Randall•7/3/23, 5:54 PM

Does anybody know how to do instantiate a wasm module in a javascript worker? FWIW, the wasm was built with Rust + Wasm Pack.

Nick Randall•7/3/23, 5:54 PM

Yes, I know I can author a worker in rust, but I have a use case for using a small wasm module in a JS worker.

kian•7/3/23, 6:21 PM

Just your usual WebAssembly.instantiate API

Nick Randall•7/3/23, 6:23 PM

Importing a .wasm.wasm module seems to just return an empty ES Module not bytes or a WebAssembly.ModuleWebAssembly.Module object that WebAssembly.instantiateWebAssembly.instantiate is expecting

Nick Randall•7/3/23, 6:24 PM

How do I get the Module and/or raw bytes for the module?

kian•7/3/23, 6:24 PM

How are you importing it?

kian•7/3/23, 6:52 PM

For local development, those are the only choices.

Nick Randall•7/3/23, 6:53 PM

import wasm from './module.wasm';
const instance = await WebAssembly.instantiate(wasm, {});

import wasm from './module.wasm';
const instance = await WebAssembly.instantiate(wasm, {});

NNick Randall ``` import wasm from './module.wasm'; const instance = await WebAssembly.instant...

kian•7/3/23, 6:57 PM

I can't replicate any issues with this code personally

Nick Randall•7/3/23, 7:00 PM

I'm still debugging but I think what I'm realizing that that the Worker API for wasm is not the same as what is documented by MDN.

kian•7/3/23, 7:00 PM

It should be pretty much the same

kian•7/3/23, 7:00 PM

Workers doesn't support instantiateStreaminginstantiateStreaming or passing a Buffer to either of them, but otherwise it's the same.

Nick Randall•7/3/23, 7:00 PM

For example, https://developer.mozilla.org/en-US/docs/WebAssembly/JavaScript_interface/instantiate says instaniate says that the promise returns an instance and a module

WebAssembly.instantiate() - WebAssembly | MDN

The WebAssembly.instantiate() function allows you to
compile and instantiate WebAssembly code. This function has two overloads:

kian•7/3/23, 7:01 PM

Scroll down

Nick Randall•7/3/23, 7:01 PM

In worker, it only returns the instance (and not object containing instance)

kian•7/3/23, 7:01 PM

You're looking at "Primary overload — taking Wasm binary code"

kian•7/3/23, 7:01 PM

You're actually using "Secondary overload — taking a module object instance"

Nick Randall•7/3/23, 7:02 PM

I see

kian•7/3/23, 7:13 PM

you can do bindings to an environment variable in workerd

kian•7/3/23, 7:13 PM

just not w/ wrangler

Phatso•7/3/23, 8:32 PM

I have a weird question about Wrangler and "Deploy with Workers"

I have a public project that I host publicly for free, but I add the option for anyone to host their own on cloudflare.

The "Deploy with Workers" button essentially clones the repo and deploys it to their cloudflare account using the wrangler.tomlwrangler.toml.
However, I have to bind KV (and soon, multiple R2 buckets) to the workers for them to function.
I do not want to ask the users to manually set this up on their own and edit their wrangler.toml for their fork (merge conflicts, making it harder for them to use the latest version of the app).

My Janky solution is to edit the included GitHub Action to find/create the KV required and manually add it to the wrangler.tomlwrangler.toml right before the wrangler deploywrangler deploy action runs:
https://github.com/CFC-Servers/gm_express_service/blob/main/.github/workflows/deploy.yml#L28

But now I'll need to do this for up to 5 buckets, too.

Is there any other way to do this?

kian•7/3/23, 8:44 PM

You can do the same with Wrangler - with the caveat that the bucket will be spawned close to the CI runners.

Phatso•7/3/23, 8:52 PM

Yeah I really need a way to create a bucket in all 5 of the major regions supported. I might have to use the S3 API inside the GH action...

KV doesnt work with --local, what does --preview do if I can use --env staging --env production etc

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