Soap API And Rest API in Salesforce

Hi Vikas,

SOAP is definitely the heavyweight choice for Web service access. It provides the following advantages when compared to REST:

Language, platform, and transport independent (REST requires use of HTTP)
Works well in distributed enterprise environments (REST assumes direct point-to-point communication)
Standardized
Provides significant pre-build extensibility in the form of the WS* standards
Built-in error handling
Automation when used with certain language products

Hope this helps you.