What is REST API why we use it?

One of the key advantages of REST APIs is that they provide a great deal of flexibility . Data is not tied to resources or methods, so REST can handle multiple types of calls, return different data formats and even change structurally with the correct implementation of hypermedia.

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When should I use SOAP over REST?

Stateful operations. Performing repetitive, chained tasks such as the financial industry requires means that you may need to retain certain client data within the server for future use. By default, REST is stateless. RESTful apps will not save any previous transactions, but SOAP supports stateful operations .

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