HTTP Status Codes

HTTP specification defines these standard status codes divided into five categories that can be used to convey the results of a client’s request.


HTTP Methods

REST guidelines suggest using a specific HTTP method on a particular type of call made to the server i.e. GET, POST, PUT or DELETE.


Richardson Maturity Model

The Richardson Maturity Model is a framework for evaluating the maturity of web services in terms of their adherence to RESTful principles.