feat(api): introduce cache busting mechanism (#439)

api/http/file_handler.go

@@ -0,0 +1,20 @@
+package http
+
+import "net/http"
+
+// FileHandler represents an HTTP API handler for managing static files.
+type FileHandler struct {
+	http.Handler
+}
+
+func newFileHandler(assetPath string) *FileHandler {
+	h := &FileHandler{
+		Handler: http.FileServer(http.Dir(assetPath)),
+	}
+	return h
+}
+
+func (fileHandler *FileHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
+	w.Header().Set("Cache-Control", "max-age=31536000")
+	fileHandler.Handler.ServeHTTP(w, r)
+}

api/http/handler.go

@@ -19,7 +19,7 @@ type Handler struct {
 	DockerHandler    *DockerHandler
 	WebSocketHandler *WebSocketHandler
 	UploadHandler    *UploadHandler
-	FileHandler      http.Handler
+	FileHandler      *FileHandler
 }
 
 const (

api/http/server.go

@@ -63,7 +63,7 @@ func (server *Server) Start() error {
 	endpointHandler.server = server
 	var uploadHandler = NewUploadHandler(middleWareService)
 	uploadHandler.FileService = server.FileService
-	var fileHandler = http.FileServer(http.Dir(server.AssetsPath))
+	var fileHandler = newFileHandler(server.AssetsPath)
 
 	server.Handler = &Handler{
 		AuthHandler:      authHandler,