// Configure a reporter, which controls how often spans are sent
//   (the dependency is io.zipkin.reporter2:zipkin-sender-okhttp3)
sender = OkHttpSender.create("http://127.0.0.1:9411/api/v2/spans");
spanReporter = AsyncReporter.create(sender);

// If you want to support baggage, create a field you would like to
// propagate and configure it with `BaggagePropagation`
COUNTRY_CODE = BaggageField.create("country-code");

// Baggage does not need to be sent remotely via headers, but if you configure
// with `addRemoteField()`, it will be
propagationFactory = BaggagePropagation.newFactoryBuilder(B3Propagation.FACTORY)
                                       .addRemoteField(COUNTRY_CODE)
                                       .build()

// Now, create a Brave tracing component with the service name you want to see in Zipkin.
//   (the dependency is io.zipkin.brave:brave)
braveTracing = Tracing.newBuilder()
                      .localServiceName("my-service")
                      .propagationFactory(propagationFactory)
                      .spanReporter(spanReporter)
                      .build();

// use this to create an OpenTracing Tracer
tracer = BraveTracer.create(braveTracing);
countryCode = span.getBaggageItem(COUNTRY_CODE.name());

// You can later unwrap the underlying Brave Api as needed
braveTracing = tracer.unwrap();
countryCode = COUNTRY_CODE.get(span.unwrap().context());

sender = OkHttpSender.json("http://127.0.0.1:9411/api/v1/spans");
spanReporter = AsyncReporter.builder(sender).build(SpanEncoder.JSON_V1);