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Hacking with Spring Boot 2.3: Reactive Edition

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"data" : {
    "full-name": "M. Smith",
    "email" : "[email protected]"
}

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"data" : [
  {"name" : "full-name", "value" : "M. Smith", "prompt" : "Full Name"},
  {"name" : "email", "value" : "[email protected]", "prompt" : "Email"}
]

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@Data
@Value
@Builder(builderMethodName = "collectionJson")
public class CollectionJson<T> {

	private String version;
	private String href;
	private List<Link> links;
	@Singular private List<Item<T>> items;

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CollectionJson collectionJson = collectionJson()
  .version("1.0")
  .href(resource.getId().expand().getHref())
  .links(value)
  .items(Collections.EMPTY_LIST)
  .build();

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public abstract class AffordanceModelFactory implements Plugin<MediaType> {

	abstract public MediaType getMediaType();

	abstract public List<AffordanceModel> findAffordanceModels(Affordance affordance, Object invocationValue);

	@Override
	public boolean supports(MediaType delimiter) {
		return delimiter != null && delimiter.equals(this.getMediaType());
	}

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public interface Affordance {

	/**
	 * HTTP method this affordance covers. For multiple methods, add multiple {@link Affordance}s.
	 *
	 * @return
	 */
	String getHttpMethod();

	/**

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@GetMapping("/employees/{id}")
public Resource<Employee> findOne(@PathVariable String id) {

	// Start the affordance with the "self" link, i.e. this method.
	Link findOneLink =
		linkTo(methodOn(EmployeeController.class).findOne(id)).withSelfRel();

	// Define final link as means to find entire collection.
	Link employeesLink = linkTo(methodOn(EmployeeController.class).all()).withRel("employees");

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@Value
@JsonPropertyOrder({"id", "name", "employees"})
class Supervisor {

	@JsonIgnore
	private final Manager manager;

	public Long getId() {
		return this.manager.getId();
	}

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@GetMapping(value = "/supervisors/{id}", produces = MediaTypes.HAL_JSON_VALUE)
public ResponseEntity<Resource<Supervisor>> findOne(@PathVariable Long id) {

	Resource<Manager> managerResource = controller.findOne(id).getBody();
	Resource<Supervisor> supervisorResource = new Resource<>(
		new Supervisor(managerResource.getContent()),
		managerResource.getLinks());

	return ResponseEntity.ok(supervisorResource);
}