6. SOAP vs REST || Difference between REST vs SOAP Web Services || Application Programming Interface

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SOAP:
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- SOAP -- Simple Object Access Protocol
- SOAP is a #PROTOCOL. It defines some standards that should be followed strictly
- Web Services following SOAP principles are called SAOP Web Services.
- SOAP message request is processed slower as compared to REST
- SOAP supports only XML data format
- SOAP is not very easy to implement so it is preferred less
- SOAP requires more bandwidth and resources
- SOAP message contains envelop, body and header
- SOAP does not use Web Caching mechanism

REST:
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- REST -- REpresentational State Transfer
- REST is an architectural style
- Web Services following REST architectural style are called RESTful Web Services
- REST message request is processed faster as compared to SOAP
- REST supports data formats like text, XML and JSON etc...
- REST is easier to implement
- REST requires less bandwith and resources
- REST message is enclosed in HTTP and uses HTTP method and URI
- REST uses Web Caching mechanism i.e. data can be cached at the client