Setup Go

Creating Golem components in Go requires using the latest version of the TinyGo compiler (opens in a new tab) and installing some common WebAssembly tooling.

Installing TinyGo

Use the official guide (opens in a new tab) to install the latest stable version of the TinyGo compiler.

Note that TinyGo also requires Go to be installed too. Follow the recommended steps here (opens in a new tab) to download and install the latest recommended version.

For MacOS TinyGo can be installed using brew:

brew tap tinygo-org/tools
brew install tinygo

Install WebAssembly tooling

First of all, to install wasm-tools via cargo, you need to install the latest stable version of Rust. The recommended way to do so is using https://rustup.rs (opens in a new tab):

Install Rust

Install rustup

curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh

Install the latest stable version of Rust

rustup install stable && rustup default stable

Add the WASI target

rustup target add wasm32-wasi

Install `wasm-tools`

cargo install --force --locked  wasm-tools@1.210.0

Confirm the installation:

wasm-tools --version
wasm-tools 1.210.0

Install `wit-bindgen`

cargo install --force --locked wit-bindgen-cli@0.26.0

Confirm the installation:

wit-bindgen --version
wit-bindgen-cli 0.26.0

⚠️

Golem requires a specific version of wasm-tools and wit-bindgen. Please make sure the correct version is installed with the commands described above.

Worker to Worker Communication Defining Components