September 2017
Beginner to intermediate
562 pages
13h 46m
English
Simple Object Access Protocol (SOAP) is a specification for exchanging structured information for web service implementation. SOAP uses XML as a message format and relies on application layer protocol, such as HTTP, TCP, and SMTP, for message transmission and negotiation. SOAP defines a message format based on envelop, header, and body. All request and response messages must be serialized into this message format.
The following diagram shows the structure of the SOAP message:

A SOAP message always starts with an envelop that contains the mandatory SOAP header block and SOAP body block. SOAP header contains the application-related information, ...