wasm-pack | 📦✨ your favorite rust - > wasm workflow tool
kandi X-RAY | wasm-pack Summary
kandi X-RAY | wasm-pack Summary
This tool seeks to be a one-stop shop for building and working with rust- generated WebAssembly that you would like to interop with JavaScript, in the browser or with Node.js. wasm-pack helps you build rust-generated WebAssembly packages that you could publish to the npm registry, or otherwise use alongside any javascript packages in workflows that you already use, such as webpack.
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Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of wasm-pack
wasm-pack Key Features
wasm-pack Examples and Code Snippets
git clone git@github.com:Avokadoen/tetris_wasm.git
cd ./tetris-wasm
wasm-pack build
cd ./www
npm install
npm run start (to change port: -- --port 8008)
curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh
curl https://rustwasm.github.io/wasm-pack/installer/init.sh -sSf | sh
cargo install wasm-pack
cargo install cargo-watch
Community Discussions
Trending Discussions on wasm-pack
QUESTION
I have some rust code that compiles to web assembly using wasm-pack
and wasm-bindgen
. I want to call into this code from a web worklet/worker. The entire app should eventually be just one single *.js file, with everything else inlined.
This is what I imagine my build process to look like:
- Use
wasm-pack
to compile the rust code to *.wasm and *.js bindings (this step works just fine) - Use
webpack
to build a self-contained *.js file that I can load as a worklet/worker. The *.wasm must be included in this file. (this step fails) - Use
webpack
again to build my final app/package, inlining the worklet/worker file from step 2. (this step works just fine)
My problem is in step 2: I can't make webpack
inline the *.wasm into the worklet/worker file.
I tried this in my webpack config:
ANSWER
Answered 2022-Mar-30 at 07:38- Build the wasm itself:
cargo build --target=wasm32/unknown/unknown
- Build the JS-bindings:
wasm-bindgen --out-dir=dist --target=web --omit-default-module-path my-wasm-package.wasm
. - Consume the wasm in your worklet script like this:
QUESTION
I'm working with Wasm and Rust, and I'm deploying the page with gitlab pages.
I'm using a gitlab-ci.yml file that looks like this:
...ANSWER
Answered 2022-Feb-04 at 08:46This page: Caching in GitLab CI/CD talks about caching and/or using artifacts to persist files between jobs. You may be able to make use of that.
It then becomes a question of how to get cargo install
to use that cache or the saved artifacts.
Alternatively, you can define your own base build image (run the cargo install
steps in that), and store that in Gitlab's docker registry; see https://docs.gitlab.com/ee/user/packages/container_registry/.
QUESTION
When i run cargo install wasm-pack
on windows 10 64-bit i get this error:
ANSWER
Answered 2021-Aug-04 at 07:28Make sure you have the development packages of Open SSL installed.
For example, libssl-dev
on Ubuntu or openssl-devel
on Fedora. If OpenSSL is already installed and the crate still had trouble finding it, you can set the OPENSSL_DIR
environment variable to specify the path for your Open SSL installation. If you are using windows you can use the Win32/Win64 OpenSSL Installation Project to provide a simple installation of OpenSSL on windows.
QUESTION
I am trying to integrate an API in a yew project and facing the following issue:
...ANSWER
Answered 2021-Oct-01 at 06:47The error tells you that no package yewtil
was found in the Git repository. If you go to the repository and check its Cargo.toml
file, you will indeed notice that it doesn't include a yewtil
package.
I searched in the repository for yewtil
, and found this pull request that refactored the project and merged yewtil
into other packages: yewstack/yew#1842.
You have two options now:
- Drop the dependency on
yewtil
, and use the documentation to figure out where the features have moved that you want to use. - Add a
tag
key to the dependency to pull in the latest release that includedyewtil
, or simply switch to the latest published version on crates.io.
If you want to get the latest features from yew
, which appears to be the case given that you're pulling in the package from GitHub and not crates.io, go with option 1. You can use the documentation and the examples in the master
branch to see how to use the package in its latest version.
QUESTION
I'm trying to use my rust module from the rust webassembly book in my gatsby project. When I try to import the module like so:
import { } from 'rust_wasm_npm_package';
I get the following error:
...ANSWER
Answered 2021-Jul-19 at 17:54I was able to get this working by adding a gatsby-node.js file with the following code:
QUESTION
This is the original function that i wanted to translate in rust to compile it in wasm in the idea that it will make it faster ( since it's a hot function in my server )
...ANSWER
Answered 2021-Jul-07 at 16:26The number of allocations in your code can be greatly decreased from n*2 in the worst case to a constant 1 (ignoring Uuid::new_v4
which I count as a constant factor that's external to the algorithm at hand) by making use of the write!
macro and format specifiers:
QUESTION
I want to create a .wasm
file which still has the function names exported when compiled.
ANSWER
Answered 2021-Jun-15 at 09:04If you plan to write a lot of WASM in Go, you might want to consider compiling with TinyGo, which is a Go compiler for embedded and WASM.
TinyGo supports a //export
or alias //go:export
comment directive that does what you're looking for.
I'm copy-pasting the very first example from TinyGo WASM docs:
QUESTION
I am writing Rust and WebAssembly program. I wanted to debug Rust and WebAssembly program with VSCode and CodeLLDB, but I got an error. I can debug simple Rust program, but fail to debug Rust and WebAssembly program. Steps to reproduce the error are shown below.
Clone the Rust and WebAssembly project template with this command:
cargo generate --git https://github.com/rustwasm/wasm-pack-template
Then, type the project name. I used "foo". Add a test in foo/src/lib.rs
...ANSWER
Answered 2021-Apr-14 at 00:36This might be not the most helpful answer, but the answer is you currently can't - there is an open issue on wasm-bindgen repo tracking future support for debugging but it's not yet supported: https://github.com/rustwasm/wasm-bindgen/issues/2389
Note that even when it will be, you'll need to use browser DevTools not CodeLLDB for WebAssembly debugging, since you need a JavaScript-capable environment.
QUESTION
I followed the Hello World Guide for wasm-bindgen (I am using wasm-bindgen = "0.2.72"
).
Unfortunately the npm packages mentioned in the guide are not really up to date. Because I would like to have a clean starting point, I tried to upgrade them.
This is the package.json
mentioned in the guide:
ANSWER
Answered 2021-Mar-22 at 23:39I was able to get it working by loading my application in the following way.
My webpack entry config looks like this:
QUESTION
I am developing a NODE JS package using Rust and wasm-pack
to compile, and I need to make HTTP requests in my code. I tried to use reqwest
library, so everything works fine in the test but I get an error in packing.
ANSWER
Answered 2021-Feb-27 at 19:37It won't work as easily as you'd expect: WASM bytecode is executed in a protected environment without any access to OS features like disk, network, conventional random generators and any other type of I/O. Consequently, the moment you compile any Rust code using such features into Wasm, it won't work.
Unfortunately your code (e.g. file access) usually even compiles silently and then fails in mysterious ways during runtime. This is not what you got used to using Rust and a major drawback of the current Wasm Rust stack.
To access OS features, you'll need WASI (Wasm System Interface) as an extension. To enable Wasi in NodeJs, you can use something like WasmerJs, see e.g. this article providing a short summary to do so.
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