Chapter 22. YAML Provider

Since Beta 6, resteasy comes with built in support for YAML using the Jyaml library. To enable YAML support, you need to drop in the jyaml-1.3.jar in RestEASY's classpath.

Jyaml jar file can either be downloaded from sourceforge: https://sourceforge.net/project/showfiles.php?group_id=153924

Or if you use maven, the jyaml jar is available through the main repositories and included using this dependency:

 <dependency>
<groupId>org.jyaml</groupId>
<artifactId>jyaml</artifactId>
<version>1.3</version>
 </dependency>

When starting resteasy look out in the logs for a line stating that the YamlProvider has been added - this indicates that resteasy has found the Jyaml jar:

2877 Main INFO org.jboss.resteasy.plugins.providers.RegisterBuiltin - Adding YamlProvider

The Yaml provider recognises three mime types:

text/x-yaml
text/yaml
application/x-yaml

This is an example of 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();
}
...
 }