Getting Started

Generate the application

Generate an application from https://start.spring.io/

1. Under Java use a modern version such as 11+
2. Add Dependencies
   1. Spring Reactive Web
   2. Spring HATEOAS
   3. (optional) Spring Boot DevTools

You can go directly to this link.

Download the application, unzip, and open in your IDE.

Add properties

In src/main/resources/application.properties add:

spring.main.web-application-type=reactive

Add Bean

Add the following bean somewhere in your app:

 @Bean
 public ForwardedHeaderTransformer forwardedHeaderTransformer() {
     return new ForwardedHeaderTransformer();
 }

See Examples

• IssuesController
• APIController

Next Steps

Separate the POJO (which is likely connected to the database) from the model assemblers.

See this link for details.

Reference Documentation

For further reference, please consider the following sections:

• https://medium.com/@cheron.antoine/reactor-java-1-how-to-create-mono-and-flux-471c505fa158
• https://howtodoinjava.com/spring5/hateoas/spring-hateoas-tutorial/
• https://grapeup.com/blog/how-to-build-hypermedia-api-with-spring-hateoas/
• Spring HATEOAS
• Building a Hypermedia-Driven RESTful Web Service