Web Services - SOAP vs REST

SOAP and REST have been widely used for web services. SOAP is developed by Microsoft in 1998. Due to the complexity, REST has been introduced in 2006. Below table is the differentiation:

	SOAP	REST
Transport Protocol
HTTP	Support	Support
TPC	Support	-
SMTP	Support	-
MQ	Support	-
IIOP	Support	-
Security
HTTPS	Support	Support
WS-Security (SOAP Security Extension)	Support	-
Output Format
XML	Support	Support
JSON	-	Support
MINE	-	Support
Other
Standards Based	Yes (Based on WS-* Specification)	No (Using HTTP Verbs POST, HEAD, GET, PUT and DELETE)
Caching	No	Yes (GET operations can be cached)
Performance	Good	Better (because of caching)
Simplicity	No	Yes
File Transfer	-	-
Who is using?	Google seems to be consistent in implementing their web services to use SOAP, with the exception of Blogger, which uses XML-RPC. You will find SOAP web services in lots of enterprises software as well.	All of Yahoo’s web services use REST, including Flickr. Both eBay and Amazon have web services for both REST and SOAP.