Linting and comments.

internal/httpserver/handler.go

@@ -137,7 +137,7 @@ func (h *handler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 	}
 
 	// Process request type. Here we process only known requests types,
-	// by default request should go to specific application's handler.
+	// all other requests will produce HTTP 400 error.
 	switch rInfo.RequestType {
 	// ToDo: move to constants.
 	case "apps_list":

internal/httpserver/httpserver.go

@@ -22,6 +22,8 @@ type HTTPServer struct {
 	server   *http.Server
 }
 
+// NewHTTPServer creates HTTP server and executes preliminary initialization
+// (HTTP server structure initialized but it doesn't start).
 func NewHTTPServer(ctx context.Context, cfg *configuration.Config, logger *logger.Logger) (*HTTPServer, chan struct{}) {
 	h := &HTTPServer{
 		config:   cfg,