Refactor improve router response handlers#19

fulleni merged 11 commits intomainflutter-news-app-full-source-code/flutter-news-app-api-server-full-source-code:mainfrom

refactor_improve_router_response_handlersflutter-news-app-full-source-code/flutter-news-app-api-server-full-source-code:refactor_improve_router_response_handlersCopy head branch name to clipboard