example showing how to instrument ok http client

OkHttpExample.java

  MetricRegistry metricRegistry = new MetricRegistry();

  final ConsoleReporter reporter = ConsoleReporter.forRegistry(metricRegistry).convertRatesTo(TimeUnit.SECONDS)
          .convertDurationsTo(TimeUnit.MILLISECONDS).build();

  GitHub github = Feign.builder().invocationHandlerFactory(
          // instrumenting feign
          new FeignOutboundMetricsDecorator(new InvocationHandlerFactory.Default(), metricRegistry))
          // instrumenting ok http
          .client(new OkHttpClient(InstrumentedOkHttpClients.create(metricRegistry)))          
          .decoder(new GsonDecoder()).target(GitHub.class, "https://api.github.com");

  execute...

  reporter.report();