embed html template and static files

view/files.go

@@ -0,0 +1,48 @@
+package view
+
+import (
+	"embed"
+	"errors"
+	"mime"
+	"net/http"
+	"os"
+	"path"
+	"path/filepath"
+)
+
+func ServeEmbedFS(fs embed.FS, dir string) http.Handler {
+    return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+        file, err := fs.ReadFile(filepath.Join(dir, filepath.Clean(r.URL.Path)))
+        if err != nil {
+            http.NotFound(w, r)
+            return
+        }
+
+        w.Header().Set("Content-Type", mime.TypeByExtension(path.Ext(r.URL.Path)))
+        w.WriteHeader(http.StatusOK)
+
+        w.Write(file)
+    })
+}
+
+func ServeFiles(directory string) http.Handler {
+    return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+        info, err := os.Stat(filepath.Join(directory, filepath.Clean(r.URL.Path)))
+
+        // does the file exist?
+        if err != nil {
+            if errors.Is(err, os.ErrNotExist) {
+                http.NotFound(w, r)
+                return
+            }
+        }
+
+        // is thjs a directory? (forbidden)
+        if info.IsDir() {
+            http.NotFound(w, r)
+            return
+        }
+
+        http.FileServer(http.Dir(directory)).ServeHTTP(w, r)
+    })
+}