Abstract: An efficient data processing solution presented herein provides a strongly typed parametrized API. The data processing solution is capable of creating an API on demand, which significantly reduces memory usage and bundle sizes, e.g., as compared to lazy-loading approaches. The data processing solution includes integrated request logic that is based on formal specifications rather than on implementation, thereby increasing flexibility and better adapting to the service needs. The data processing solution also supports a middleware layer that helps to isolate concerns of various components and to result in small functional blocks with better maintainability and resiliency.