Embedding a Blazor Webassembly SPA in Go with Echo

echo.go

package main

import (
	"embed"
	"fmt"
	"io/fs"
	"net/http"

	"github.com/labstack/echo/v4"
)

//go:embed wasm/wwwroot/*
var content embed.FS

func main() {
	e := echo.New()

	staticFiles, err := fs.Sub(content, "wasm/wwwroot")
	if err != nil {
		fmt.Println("Error accessing embedded content:", err)
		return
	}

	fs.WalkDir(staticFiles, ".", func(path string, d fs.DirEntry, err error) error {
		if err != nil {
			fmt.Println("Error walking directory:", err)
			return err
		}
		fmt.Println("Embedded file:", path)
		return nil
	})

	e.GET("/api/hello", func(c echo.Context) error {
		return c.String(http.StatusOK, "Hello, World!")
	})

	e.StaticFS("/", staticFiles)

	e.Logger.Fatal(e.Start("localhost:5000"))
}