Strictly speaking, SOAP and REST aren’t directly comparable: REST is an architectural style, and SOAP is a specific protocol defined by a standard. RESTful web services are stateless. REST services are easy to integrate with existing websites and are exposed with XML so the HTML pages can consume the same with ease. The required SOAP Body element contains the actual SOAP message intended for the ultimate endpoint of the message.
Typically, XML Information Set is serialized as XML A wide variety of freely available tools significantly eases the transition to a SOAP-based implementation. Both client & server can define SOAP headers that will be added to what they send. If developing web services (see below) then IIOP (CORBA’s transport protocol) is not particularly firewall friendly.
SOAP bindings are mechanisms which allow SOAP messages to be effectively exchanged using a transport protocol. Developers have gradually shifted from SOAP to REST over the last decade, as measured by catalogued APIs, searches, and surveys. ForceSoap12Headers: to set proper headers for SOAP v1.2.
The Marketo SOAP API allows for the creation, retrieval and removal of entities and data stored within Marketo. A service method can reply with a SOAP Fault to a client by throwing an object with a Fault property. Now try doing the same with SOAP – no problem, the WSDL is your documentation, so you know exactly how to interact with the service.
Xml – The entire Soap request (Envelope) including headers. The sequence order of the calls is request, headers and then the dedicated service method. REST opens up lot more client for the exposed WebService than SOAP. REST also requires that the service is adequately documented, whereas a WSDL serves as accurate documentation for any SOAP web service.