What is RESTful API answer?

RESTful web services use REST API as means of implementation using the HTTP protocol. REST API is nothing but an application programming interface that follows REST architectural constraints such as statelessness, cacheability, maintainability, and scalability .

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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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