SOAP VS REST
SOAP - "Simple Object Access Protocol"
REST - "Representational state transfer"
Standard and Unified methods like POST, GET, PUT and DELETE. Its work like how an website makes a request using HTTP protocol.
Easy to use URI (Uniform resource identifier) format to locate any web resource.
REST is light weighted compared to SOAP
SOAP is a lightweight protocol intended for exchanging structured information in a decentralized, distributed environment. SOAP uses XML technologies to define an extensible messaging framework, which provides a message construct that can be exchanged over a variety of underlying protocols. The framework has been designed to be independent of any particular programming model and other implementation specific semantics.
The WCF SOAP service can be categorized as operations-based, which means that a SOAP client calls a method that is available as a web service operation on a remote server, and receives a SOAP response.
A WCF REST service can be categorized as resource-based, which means that a REST client sends an HTTP request to programmatically accomplish a business objective. These requests largely employ a GET that is sent to a URI. In return, the client receives the corresponding resource.