qbit/consul-client/src/main/java/io/advantageous/consul/endpoints/CatalogEndpoint.java
public ConsulResponse<List<CatalogService>> getService(final String serviceName,
                                                           final String datacenter, final String tag
    ) {
        return getService(serviceName, datacenter, tag, RequestOptions.BLANK);
    }
public ConsulResponse<List<CatalogService>> getService(final String serviceName,
                                                           final String datacenter, final String tag
    ) {
        return getService(serviceName, datacenter, tag, RequestOptions.BLANK);
    }
Retrieves a single service for a given datacenter.
<p>
GET /v1/catalog/service/{service}?dc={datacenter}

@param serviceName service name
@param datacenter  datacenter
@param tag         tag
@return A {@link io.advantageous.consul.domain.ConsulResponse} containing
{@link io.advantageous.consul.domain.CatalogService} objects.