#6 (RESTtful Web Wervices)
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This document provides an introduction to RESTful web services, explaining the stateless client-server architecture and the use of HTTP methods to interact with these services. It discusses the Java API for RESTful web services (JAX-RS) and its annotations that facilitate web service development. The document also includes practical examples for setting up a database and creating tables for a user web service application.
#6 (RESTtful Web Wervices)
- 1. Distributed Systems Lecture -6- Created by : Eng. Ghadeer Al Hasan Restful Web Services
- 2. Intro 1 • REST is the acronymfor REpresentational State Transfer. • REST is an architectural style for developing applications that can be accessed over the network. • Restful Web Services is a statelessclient-server architecture where web services are resources and can be identified by their URIs. • REST Client applications can use HTTP GET/POSTmethods to invoke Restful web services. • REST doesn’t specify any specificprotocol to use, but in almost all casesit’s used over HTTP/HTTPS. • We can use XML, JSON, text or any other type of data for request and response.
- 3. Java RESTful Web Services API 2 • Java API for RESTful Web Services (JAX-RS) is the Java API for creating RESTweb services. • JAX-RS uses annotations to simplifythe development and deployment of web services. • JAX-RSis part of JDK, so you don’t needto include anything to use it’s annotations
- 4. Restful Web Services Annotations 3 Some of the importantJAX-RS annotations are: • @Path: used to specify the relative path of classand methods. We can get the URI of a webservice by scanning the Pathannotationvalue. • @GET , @PUT , @POST , @DELETEand @HEAD: usedto specify the HTTPrequest type for a method. • @Produces , @Consumes : usedto specify therequest and responsetypes. • @PathParam: used to bindthe method parameter to pathvalue by parsing it.
- 6. Requirement 5 - Install “Wamp Server” on your machine - Create Database “RestWS” - Create Tables…
- 7. Create Tables 6 create table Accounts ( accountId bigint not null primary key AUTO_INCREMENT, username varchar(100) not null, password varchar(100) not null); ) create table Users( userId bigint not null primary key AUTO_INCREMENT, firstName varchar(200) not null, lastName varchar(200) not null, BirthDate varchar(30) not null, gender bit not null, accountId bigint not null, foreign key (accountId) references Accounts(accountId) );
- 12. Test Services 11
- 13. Test Services 12
- 14. References 13 - YouTube link https://www.youtube.com/playlist?list=PLtDIUAtyP4lhV7CsYfLuIx26UeG4J-ujZ - GitHub https://github.com/Ghadeerof
- 15. End Lecture