Example.java

@Timed
@Metered
@ExceptionMetered
interface GitHub {
    @RequestLine("GET /repos/{owner}/{repo}/contributors")
    List<Contributor> contributors(@Param("owner") String owner, @Param("repo") String repo);
}

static class Contributor {
    String login;
    int contributions;
}

public static void main(String... args) {

    MetricRegistry metricRegistry = new MetricRegistry();

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

    GitHub github = Feign.builder().invocationHandlerFactory(
            new FeignOutboundMetricsDecorator(new InvocationHandlerFactory.Default(), metricRegistry))
            .decoder(new GsonDecoder()).target(GitHub.class, "https://api.github.com");

    // Fetch and print a list of the contributors to this library.
    List<Contributor> contributors = github.contributors("mwiede", "metrics-feign");
    for (Contributor contributor : contributors) {
        System.out.println(contributor.login + " (" + contributor.contributions + ")");
    }

    reporter.report();
}