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Merge pull request #93 from gregkalapos/SampleAppImprovement
Add HttpListener sample
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| <Project Sdk="Microsoft.NET.Sdk"> | ||
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| <PropertyGroup> | ||
| <OutputType>Exe</OutputType> | ||
| <TargetFramework>netcoreapp2.1</TargetFramework> | ||
| <LangVersion>7.1</LangVersion> | ||
| </PropertyGroup> | ||
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| <ItemGroup> | ||
| <ProjectReference Include="..\..\src\Elastic.Apm\Elastic.Apm.csproj" /> | ||
| </ItemGroup> | ||
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| </Project> |
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| @@ -0,0 +1,66 @@ | ||
| using System; | ||
| using System.Net; | ||
| using System.Reflection.Metadata; | ||
| using System.Threading.Tasks; | ||
| using Elastic.Apm; | ||
| using Elastic.Apm.Api; | ||
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| namespace HttpListenerSample | ||
| { | ||
| class Program | ||
| { | ||
| static async Task Main(string[] args) | ||
| { | ||
| if (!HttpListener.IsSupported) | ||
| { | ||
| Console.WriteLine("Windows XP SP2 or Server 2003 is required to use the HttpListener class."); | ||
| return; | ||
| } | ||
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| // Create a listener. | ||
| var listener = new HttpListener(); | ||
| // Add the prefix | ||
| listener.Prefixes.Add("http://localhost:8080/"); | ||
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| listener.Start(); | ||
| Console.WriteLine("Listening..."); | ||
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| while (true) | ||
| { | ||
| // Note: The GetContext method blocks while waiting for a request. | ||
| var context = listener.GetContext(); | ||
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| // Capture the incoming request as a transaction with the agent | ||
| await Agent.Tracer.CaptureTransaction("Request", ApiConstants.TypeRequest, async () => | ||
| { | ||
| var request = context.Request; | ||
| // Obtain a response object. | ||
| var response = context.Response; | ||
| // Construct a response. | ||
| var responseString = $"<HTML><BODY> Hello world! Random number: {await GenerateRandomNumber()}</BODY></HTML>"; | ||
| var buffer = System.Text.Encoding.UTF8.GetBytes(responseString); | ||
| // Get a response stream and write the response to it. | ||
| response.ContentLength64 = buffer.Length; | ||
| var output = response.OutputStream; | ||
| output.Write(buffer, 0, buffer.Length); | ||
| // You must close the output stream. | ||
| output.Close(); | ||
| }); | ||
| } | ||
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| listener.Stop(); | ||
| } | ||
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| static readonly Random Random = new Random(); | ||
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| private static async Task<int> GenerateRandomNumber() | ||
| { | ||
| // Get the current transaction and then capture this method as a span on the current transaction | ||
| return await Agent.Tracer.CurrentTransaction.CaptureSpan("RandomGenerator", "Random", async () => | ||
| { | ||
| await Task.Delay(5); // Simulate some work | ||
| return Random.Next(); | ||
| }); | ||
| } | ||
| } | ||
| } |