Apart from CRUD work in backend, there is a lot more to learn and implement in your projects to allow scalable, powerful, and reliable system design. As most of us full-stack and backend developers work with APIs for user-oriented operations which are being triggered from frontend by end users in their various tasks, and then the response of those APIs for that task informs user and drives their work forward, navigates them to further pages, fetches them the required info, and provides them with services. But not all types of workflows can be given to a designed API and then accomplished in short time with that one single API — it can be, but not on user's waiting. The user expects the web app or app response for his or her simple triggered task. But it is the backend which knows how many actions and tasks must be performed and in which order.…