/// <summary>
/// This program hosts a Web API that has a controller decorated with .a PerfIt filter and then sends an HTTP request to instrument
/// There is a Zipkin ServerTraceHandler to pick up headers from request and inject headers to the response.
/// Zipkin emitter has a console dispatcher which outputs spans to the console.
/// </summary>
/// <param name="args"></param>
static void Main(string[] args)
{
string baseAddress = "http://localhost:34543/";
var configuration = new HttpSelfHostConfiguration(baseAddress);
configuration.Routes.Add("def", new HttpRoute("api/{controller}"));
configuration.MessageHandlers.Add(new ServerTraceHandler("server-test")); // adding Zipkin handler to inject headers
var server = new HttpSelfHostServer(configuration);
server.OpenAsync().Wait();
// zipkin emitter
var emitter = new SimpleEmitter();
emitter.RegisterDispatcher(new ConsoleDispatcher());
// hook to the filter and add a tracer
PerfItRuntime.InstrumentorCreated += (sender, e) =>
{
if (e.Info.CategoryName == "server-test")
{
e.Instrumentor.Tracers.Add("Console", new ServerTracer(emitter));
}
};
// handler
var handler = new PerfitClientDelegatingHandler("client-test", new ClientTracer(emitter))
{
InnerHandler = new ClientTraceHandler("client-test", new HttpClientHandler()),
PublishCounters = false
};
var client = new HttpClient(handler);
var result = client.GetAsync(baseAddress + "api/test").Result;
Console.WriteLine(result.Content.ReadAsStringAsync().Result);
// notice Zipkin headers in the request as a result of ClientTraceHandler
Console.BackgroundColor = ConsoleColor.Yellow;
Console.ForegroundColor = ConsoleColor.Magenta;
Console.WriteLine(result.RequestMessage.Headers.ToString());
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine(result.Headers.ToString());
Console.ResetColor();
result.EnsureSuccessStatusCode();
Console.Read();
}
/// <summary>
/// This is sample whereby a .NET Core MVC API is hosted with a controller that is decorated with PerfIt filter.
/// A Zipkin emitter is created with a Console dispatcher so that all Zipkin traces are sent to Console.
/// A Zipkin tracer gets added by hooking into PerfItRuntime.InstrumentorCreated.
/// On the other hand, we have HttpClient which gets a PerfIt handler with a ClientTraceHandler which injects Zipkin headers.
/// </summary>
/// <param name="args"></param>
static void Main(string[] args)
{
// server
var h = BuildWebHost(args);
h.Start();
// zipkin emitter
var emitter = new SimpleEmitter();
emitter.RegisterDispatcher(new ConsoleDispatcher());
// hook to the filter and add a tracer
PerfItRuntime.InstrumentorCreated += (sender, e) =>
{
if (e.Info.CategoryName == "server-test")
{
e.Instrumentor.Tracers.Add("Console", new ServerTracer(emitter));
}
};
// handler
var handler = new PerfitClientDelegatingHandler("client-test", new ClientTracer(emitter))
{
InnerHandler = new ClientTraceHandler("client-test", new HttpClientHandler())
};
var client = new HttpClient(handler);
var result = client.GetAsync(baseAddress + "api/test").Result;
Console.WriteLine(result.Content.ReadAsStringAsync().Result);
// notice Zipkin headers in the request as a result of ClientTraceHandler
Console.BackgroundColor = ConsoleColor.Yellow;
Console.ForegroundColor = ConsoleColor.DarkMagenta;
Console.WriteLine(result.RequestMessage.Headers.ToString());
Console.ResetColor();
result.EnsureSuccessStatusCode();
Console.Read();
h.StopAsync().Wait();
}
