RESTEasy comes with built in support for YAML using the SnakeYAML library. To enable YAML support, you must insert the following dependencies into the project pom file of your application:

<dependency>
	<groupId>org.jboss.resteasy</groupId>
	<artifactId>resteasy-yaml-provider</artifactId>
	<version>${version.org.jboss.resteasy}</version>
	<scope>provided</scope>
</dependency>

<dependency>
	<groupId>org.yaml</groupId>
	<artifactId>snakeyaml</artifactId>
	<version>${version.org.yaml.snakeyaml}</version>
</dependency>

YAML provider recognizes three mime types:

The following example demonstrates how to use YAML in a resource method:

import javax.ws.rs.Consumes;
 import javax.ws.rs.GET;
 import javax.ws.rs.Path;
 import javax.ws.rs.Produces;

 @Path("/yaml")
 public class YamlResource
 {

@GET
@Produces("text/x-yaml")
public MyObject getMyObject() {
   return createMyObject();
}
...
 }