Description: Operation middleware in GraphQL is a function that allows modifying the behavior of operations on a GraphQL server. This type of middleware acts as an intermediary that can intercept and manipulate requests and responses before they reach their final destination. Its main goal is to provide an additional layer of functionality that can include data validation, user authentication, activity logging, and error management. Being highly configurable, operation middleware allows developers to customize the data flow and business logic of their applications, facilitating the implementation of complex features without altering the basic structure of the server. Additionally, its use promotes code reuse and separation of concerns, resulting in cleaner and more maintainable development. In environments where applications require dynamic and efficient interactions, operation middleware becomes an essential tool for optimizing the performance and security of APIs.
