vite-import-go

Import go files in Vite applications. Have them typed with Typescript.

Summary

vite.config.js

import { defineConfig } from 'vite';
import { viteImportGoPlugin } from './lib/vite-import-go-plugin';

export default defineConfig({
	plugins: [viteImportGoPlugin()],
});

src/main.go

package main

import (
	"syscall/js"
)

var count int = 0

func add() int {
	count++
	return count
}

func main() {
	js.Global().Set("add", js.FuncOf(func(t js.Value, args []js.Value) any {
		return add()
	}))

	<-make(chan struct{})
}

src/main.go.d.ts

declare function add(): number;

main.js

import load from './main.go';

load().then(() => {
    add(); // now available as window.add
});

Project

• lib/ - library code and plugin
• src/ - client code
• .wasm/ - built go applications

Setup

Javascript glue

cp "$(go env GOROOT)/misc/wasm/wasm_exec.js" ./assets/wasm_exec.js

Building

GOOS=js GOARCH=wasm go build -o  ../assets/json.wasm