SPRING RESTFUL SERVICES PARTE 1 CRACK CLASS

COURSE UPDATE : HATEOAS Updates

VERSION UPDATES FOR NEXT LECTURE

There are a few modifications of HATEOAS in the latest release of Spring HATEOAS 1.0.0:

Option 1 : Spring Boot Release >= 2.2.0

Complete code: https://github.com/in28minutes/spring-web-services/blob/master/restful-web-services/2.3.1.RELEASE-upgrade.md#srcmainjavacomin28minutesrestwebservicesrestfulwebservicesuseruserresourcejava

import static org.springframework.hateoas.server.mvc.WebMvcLinkBuilder.linkTo;

import static org.springframework.hateoas.server.mvc.WebMvcLinkBuilder.methodOn;

 

import org.springframework.hateoas.EntityModel;

import org.springframework.hateoas.server.mvc.WebMvcLinkBuilder;

 

@RestController

public class UserJPAResource {

 

 

@GetMapping("/users/{id}")

public EntityModel<User> retrieveUser(@PathVariable int id) {

User user = service.findOne(id);

if(user==null)

throw new UserNotFoundException("id-"+ id);

//"all-users", SERVER_PATH + "/users"

//retrieveAllUsers

EntityModel<User> resource = EntityModel.of(user);

WebMvcLinkBuilder linkTo = 

linkTo(methodOn(this.getClass()).retrieveAllUsers());

resource.add(linkTo.withRel("all-users"));

//HATEOAS

return resource;

}



Option 2: Older versions

import static org.springframework.hateoas.mvc.ControllerLinkBuilder.linkTo;

import static org.springframework.hateoas.mvc.ControllerLinkBuilder.methodOn;

import org.springframework.hateoas.Resource;

import org.springframework.hateoas.mvc.ControllerLinkBuilder;

Resource<User> resource = new Resource<User>(user);

ControllerLinkBuilder linkTo = linkTo(methodOn(this.getClass()).retrieveAllUsers());

resource.add(linkTo.withRel("all-users"));

return resource;