The RESTful application builds logic around resources, but not around endpoints: Providers (servers) who are waiting for a connection to receive a request, take the necessary actions, and return a message with the result.Consumers (customers) who initiate a connection and send a request.The basis of HTTP is the client-server technology, that is, the following are assumed: In turn, HTTP (HyperText Transfer Protocol) is an application-level data transfer protocol that was originally planned in the form of hypertext documents in the HTML format and is currently used to transfer arbitrary data. These methods are restricted to storing client status on the state server, i.e. RESTful service uses four methods from HTTP protocol: get, post, put, and delete. RESTful Web services are built with a list of constraints that simplify client-server information exchange and their software implementation. Actually, it is not a protocol itself, but a set of rules or guidelines for building an effective communication model between the sender and receiver of information. REST is a software architectural style for web services. It transfers information from the client in the request parameters, information from a server in the body of the response (which can be, for example, a JSON object or an XML document). REST (Representational State Transfer) provides communication between the client (usually a browser) and the server using ordinary HTTP requests (GET, POST, PUT, DELETE, etc.). This is where the REST API testing tools are used. Manually reviewing each request and generating parameters is a rather laborious task, as when changing the back-end or the microservice architecture settings, you need to check the API constantly during the development process. Since the number of services that actively use REST protocol, including cloud systems and microservices, has recently increased, the question of high-quality and quick testing of REST-based APIs becomes even more relevant.
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