Restful state transfer is a way of facilitating functional operation and interactions between two or more distinct systems (or subsystems) via the internet. Web services that adhere to REST allow interacting systems to access web content; they also perform authorized operations on web content that they have access to. These inter-system communications are done using a well-defined set of stateless operations. A RESTful web service adheres to REST and provides web content to communicating systems via predetermined stateless operations.

In the present day, numerous systems that communicate with web services utilize REST. Systems that may utilize REST are based on the client-server architecture. The API we will be developing is based on REST, and, as such, will make use of representational state transfer.