A RESTful API is an Application Program Interface (API) that uses GET, PUT, POST, and DELETE data as HTTP requests. The API for a website is a code that enables communication between two software programs. The API sets out a developer’s proper way of writing a program requesting resources from an operating system or another device. It is also known as a RESTful web service or REST API. RESTful API is based on representational state transfer (REST), an architectural style and communication method that is often used in the creation of web services. REST technology is typically preferred over the more reliable Simple Object Access Protocol (SOAP) technology, because REST requires less bandwidth, making it more suitable for efficient internet use. The REST used by browsers can be called the Internet language. Through cloud usage growing, cloud users are using APIs to open and coordinate access to web services. REST is a logical option for creating APIs that allow users to connect, manage, and communicate flexibly with cloud resources in a distributed environment. It is used by Amazon, Facebook, LinkedIn, and Twitter. How RESTful APIs work To build a set of small modules a RESTful API breaks down a transaction. Every module addresses a particular part of the transaction that underlies it. This modularity gives developers a lot of versatility, but developing their REST API from scratch can be challenging for developers. These models supported by Amazon S3, Cloud Data Management Interface (CDMI), and OpenStack Swift are the most common models currently available to developers. A RESTful API takes advantage of current HTTP methodologies. Using GET to retrieve a resource; PUT to modify or update a resource that can be an object, file, or block; POST to develop that resource, and DELETE to delete that resource. With REST, networked components are a tool in which the user demands access to a black box whose specifics regarding implementation are vague. All calls are stateless; everything between executions can be kept by the RESTful service. RESTful API Design Usage of a Standard Interface (UI): Resources should be distinctly recognizable with a single URL, and only using the network protocol’s underlying methods, such as DELETE, PUT, and GET with HTTP, can a resource be manipulable. Client-server based: A clear delineation between client and server should be created. UI and questions about request-gathering are the responsibility of the company. The server domain is data access, workload management, and security. The loose coupling of client and server allows for the creation and enhancement of each independently of the other. Stateless operations: All client-server operations should be stateless, and any necessary state management should be performed on the client, not on the server. RESTful caching of resources: All resources will require caching unless it is specifically specified that caching is not possible. Layered system: REST allows for an architecture consisting of several server layers. Code on-demand: For the most part, a server can send back static resource representations in XML or JSON format. Nevertheless, servers can submit executable code to the client where appropriate. SOFTIEONS TECHNOLOGIES is providing you all kinds of IT solutions and services like website design and development, app development, digital marketing. We creating a very effective solution for our clients and make it according to our customers’ requirements.