We were using RESTEasy 2.0 in on of our earlier projects. RESTEasy is a JBoss project that provides various frameworks to help you build RESTful Web Services and RESTful Java applications. The 2.0 version was quite simple to use. I decided to use version 3.0 in one of recent projects and the migration was not that tough. A lot of chages have been done in the newer version. I am going to mention the ones which I found out.
RESTEasy Client
In version 2.0
String url = "http://resetservice.com/api/testService";
ClientRequest request = new ClientRequest(url);
request.body("application/json", json);
response = request.post();
int status = response.getStatus();
if (status == 200) {
String data = (String) response.getEntity(String.class);
Boolean value = new Gson().fromJson(data, Boolean.class);
return value;
}
return false;
The same thing in 3.0 now changes to -
ResteasyClient client = new ResteasyClientBuilder().build();
String result = getResponseString("http://resetservice.com/api/testService");
Boolean returnVal = clientUtil.getObjectFromJson(Boolean.class, result);
return returnVal;
Authentication
I also had to use some in-house authentication technic. I used it in very basic way. I checked for a particular request header (authorizationString) for authenticating the request. If that header is not present the request gets aborted. I used a very basic Below is the code snippet for the same.
@Provider
@ServerInterceptor
public class AuthorizationRequestFilter implements ContainerRequestFilter {
@Override
public void filter(ContainerRequestContext requestContext)
throws IOException {
final SecurityContext securityContext =requestContext.getSecurityContext();
String header = requestContext.getHeaderString("authorizationString");
try {
if (securityContext == null || header == null || header == "" ||
(header != null && !header.equals(
ConfigReader.getInstance().getAuthToken()))) {
requestContext.abortWith(
Response.status(Response.Status.UNAUTHORIZED).entity("User
cannot access the resource.").build());
}
} catch (ConfigurationException e) {
e.printStackTrace();
}
}
}