error when using zip as staticfs

[maxim0r]

There is a need to use zip as static resources. But when calling it, the error ‘file does not implement io.ReadSeeker’ occurs. Can you please advise me how to solve the problem? My skill is not enough

package main

import (
	"archive/zip"
	"io/fs"
	"net/http"
	"os"

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

func main() {
	e := echo.New()
	e.Use(middleware.Logger())

        // dir
	dirFS := os.DirFS("data")
	dirFS, _ = fs.Sub(dirFS, "static")
	e.StaticFS("/static_dir", dirFS)

	// zip
	r, err := zip.OpenReader("data.zip")
	if err != nil {
		panic(err)
	}
	zipFS, _ := fs.Sub(r, "static")
	e.StaticFS("/static_zip", zipFS)

	go func() {
		if err := e.Start(":8080"); err != nil {
			e.StdLogger.Fatal(err)
		}
	}()

	http.Get("http://localhost:8080/static_dir/index.html")
	http.Get("http://localhost:8080/static_zip/index.html")
}

Log:

{"time":"2024-11-06T11:34:48.212141+03:00","id":"","remote_ip":"::1","host":"localhost:8080","method":"GET","uri":"/static_dir/index.html","user_agent":"Go-http-client/1.1","status":200,"error":"","latency":2067584,"latency_human":"2.067584ms","bytes_in":0,"bytes_out":14}
{"time":"2024-11-06T11:34:48.212859+03:00","id":"","remote_ip":"::1","host":"localhost:8080","method":"GET","uri":"/static_zip/index.html","user_agent":"Go-http-client/1.1","status":500,"error":"file does not implement io.ReadSeeker","latency":106333,"latency_human":"106.333µs","bytes_in":0,"bytes_out":36}

[aldas]

You might want to read golang/go#61232

[maxim0r]

Thank you very much for your help, it makes sense now