Java Interview Goal

  The  microservice  architecture is one of the most recent approaches to developing enterprise software applications. The concept of this style of software architecture has been discussed since 2011, and it has been establishing itself quickly.  concept of microservice is like : The microservice architectural style is an approach to developing a single application as a suite of small services, each running in its own process and communicating with lightweight mechanisms. These services are built around business capabilities and independently deployable by fully automated deployment machinery. There is a bare minimum of centralized management of these services, which may be written in different programming languages and use different data storage technologies. Why microservices? "Microservices is a phenomenon of building applications as a collection of multiple independent services which are loosely coupled". It is nothing but decomposing the application into various modules

  1) Explain what is REST and RESTFUL? REST represents Representational State Transfer; it is a relatively new aspect of writing web API. RESTFUL is referred for web services written by applying REST architectural concept are called RESTful services, it focuses on system resources and how state of resource should be transported over HTTP protocol to different clients written in different language. In RESTFUL web service HTTP methods like GET, POST, PUT and DELETE can be used to perform CRUD operations. 2) Explain the architectural style for creating web API? The architectural style for creating web api are HTTP for client server communication XML/JSON as formatting language Simple URI as the address for the services Stateless communication 3) Mention what tools are required to test your web API? SOAPUI tool for SOAP WS and Firefox "poster" plugin for RESTFUL services. 4) Mention what are the HTTP methods supported by REST? HTTP methods supported by REST are: GET:  It requests