goflare/internal/handler/frontend.go

package handler

import (
	"os"
	"path/filepath"

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

func RegisterFrontend(e *echo.Echo, distPath string) {
	e.GET("/*", func(c echo.Context) error {
		path := c.Request().URL.Path
		filePath := filepath.Join(distPath, path)

		if _, err := os.Stat(filePath); err != nil {
			return c.File(filepath.Join(distPath, "index.html"))
		}

		return c.File(filePath)
	})
}