[SOLVED] How to serve static folders using Chi router

How to serve static folders using Chi router

I want to serve a folder that has the next form:

my-project/
  - public/ <- The folder that I want to serve and also all the subfolders and files
    - css/
      - styles.css

    - js/
      - script.js

  - main.go

And I want to visit it with the URL's http://localhost/api/static/css/styles.css and http://localhost/api/static/js/script.js

So I tried to do the next:

package main

import (
    "log"
    "net/http"

    "github.com/go-chi/chi/v5"
)

func main() {
    r := chi.NewRouter()

    r.Handle("/api/static/*", http.StripPrefix("/public/", http.FileServer(http.Dir("./public"))))

    if err := http.ListenAndServe(":80", r); err != nil {
        log.Fatal(err)
    }
}

This not works, it gives me an HTTP 404 error code when I try to visit either http://localhost/api/static/css/styles.css or http://localhost/api/static/js/script.js

Solution

You have to strip /api/static from the path, so, for instance, if a request comes for /api/static/css/styles.css, stripping it will leave css/styles.css, which will be looked up under ./public to give ./public/css/styles.css.