Go WASM Template in Svelte

A quick start template to compile a Golang to WebAssembly for use with a Svelte front end. It is presented as a simple web app which shows how it all fits together.

This uses a fork of the golang-wasm-async-loader webpack plugin in order to work with Golang v1.13.

Current Status

Relies on a local copy of forked plugin so follow the setup carefully.

Setup

Pre-requisites

Tested using node v14.14 and yarn v1.22. You could use npm for linking but I use yarn for this as it seems more reliable.

Clone the plugin and this template

Note: the directories need to be adjacent in order to work as is. If not you will have to modify the path to gobridge in your main.go import. I'm not sure why this is needed but maybe the plugin wasn't finalised.

If you have node and yarn, on Linux you should be able to just copy the following and paste it into your terminal.

# Make sure GOROOT and GOPATH are set in the terminal, for example:
export GOROOT=`go env GOROOT`
export GOPATH=`go env GOPATH`

# Get the plugin
mkdir -p ~/src/wasm_test
cd ~/src/wasm_test
git clone https://github.com/happybeing/webpack-golang-wasm-async-loader
cd webpack-golang-wasm-async-loader
npm install && npm run build
yarn link

# Get the app template
cd ~/src/wasm_test
git clone https://github.com/happybeing/svelte-go-wasm-webpack svelte-go-app
cd  svelte-go-app
yarn link golang-wasm-async-loader
yarn && yarn build

# If all looks good, start the app
yarn dev
# Open app in the browser by visiting localhost:5000

Note that the plugin directory and its package name are different, so you need to use the yarn link command as shown.

LICENSE

Everything is GPL3.0 unless otherwise stated. Any contributions are accepted on the condition they conform to this license.

See also ./LICENSE