public DataDogScreenboardClient(String applicationKey, String apiKey, URI uri) {
_applicationKey = checkNotNull(applicationKey, "application key is null");
_apiKey = checkNotNull(apiKey, "apiKey is null");
_datadogApiUrl = checkNotNull(uri, "URI is null");
DefaultClientConfig config = new DefaultClientConfig();
config.getFeatures().put(JSONConfiguration.FEATURE_POJO_MAPPING, true);
_httpClient = Client.create(config);
}