Description: Request transformation is the process of modifying request data before sending it to the backend service. This process is crucial in microservices architecture and in the use of API gateways, as it allows adapting client requests to the formats required by the services that process them. Transformation can include converting data formats, modifying headers, adding or removing parameters, and restructuring the request body. This approach not only improves interoperability between different systems but also optimizes security and performance by filtering or sanitizing data before it reaches the backend. Additionally, request transformation allows developers to implement business logic at the API gateway, which can reduce the load on backend services and facilitate API change management without affecting clients. In summary, request transformation is an essential tool to ensure that interactions between clients and services are efficient, secure, and tailored to the specific needs of each system.