What is included in the SOAP envelope?

The SOAP envelope is a fundamental component of the SOAP protocol, designed for carrying messages between web services. It is structured to include both a header and a body.

The header can contain optional information such as routing, message integrity, or authentication details, depending on the needs of the application. This header allows for various types of processing to occur at the intermediary nodes or receiving endpoints.

The body contains the actual payload of the message, which typically consists of the primary content that the sending application intends to communicate to the receiving application. This may involve method calls and the data being transmitted as part of a request or response.

Including both the header and body ensures that the complete context of the message is communicated clearly between services, allowing for effective processing and handling of requests and responses. The structure is essential for enabling features like security, transaction management, and message delivery guarantees, making the option that includes both header and body the correct answer.