Question

我想通过Azure-ApplicationInsights报告每种路由的一些属性，如下图所示：

问题在于，即使我在同一条路线或不同路线上进行第二次呼叫，这些值也不会改变。仅在第三个调用时，该值才会更改，但是即使在当前调用时，该值也不会更改。示例：

我愿意https://localhost:5001/api/testobject/ 7 “ proprietate custom” =“ valoare custom 7 ”
我愿意https://localhost:5001/api/testobject/ 8 “ proprietate custom” =“ valoare custom 7 ”
我愿意https://localhost:5001/api/testobject/ 9 “ proprietate custom” =“ valoare custom 8 ”

后面的代码如下：

[Route("api/[controller]")]
[ApiController]
public class TestObjectController
{
    private TelemetryClient telemetryClient;

    public TestObjectController(TelemetryClient telemetryClient)
    {
        this.telemetryClient = telemetryClient;
    }

    // GET api/values/5
    [HttpGet("{id}")]
    public ActionResult<string> Get(int id)
    {
        telemetryClient.Context.Properties.Clear(); 
        telemetryClient.Context.GlobalProperties["TestObjectController"] = "nok";
        telemetryClient.Context.Properties["proprietate custom"] = $"valoare custom {id}";
        return "value";
    }
}

任何想法如何使其准确？

Answer 1

telemetryClient.Context.Properties仅在Telemetry Client实例上设置上下文。这意味着在新的遥测项生效之前，可能会使用先前的上下文创建多个遥测项（如果在上下文更新之前创建了遥测项）。

情况似乎是这样-请求遥测项是在方法调用时创建的，并且仅在方法内部稍后，客户端才会更新为具有新的上下文。

我建议使用TelemetryInitializer代替to update the context on the level of the Telemetry Item，而不要使用遥测客户端：

using System;
using Microsoft.ApplicationInsights.Channel;
using Microsoft.ApplicationInsights.DataContracts;
using Microsoft.ApplicationInsights.Extensibility;

namespace MvcWebRole.Telemetry
{
  /*
   * Custom TelemetryInitializer that overrides the default SDK
   * behavior of treating response codes >= 400 as failed requests
   *
   */
  public class MyTelemetryInitializer : ITelemetryInitializer
  {
    public void Initialize(ITelemetry telemetry)
    {
        var requestTelemetry = telemetry as RequestTelemetry;
        // Is this a TrackRequest() ?
        if (requestTelemetry == null) return;
        int code;
        bool parsed = Int32.TryParse(requestTelemetry.ResponseCode, out code);
        if (!parsed) return;
        if (code >= 400 && code < 500)
        {
            // If we set the Success property, the SDK won't change it:
            requestTelemetry.Success = true;
            // Allow us to filter these requests in the portal:
            requestTelemetry.Context.Properties["Overridden400s"] = "true";
        }
        // else leave the SDK to set the Success property      
    }
  }
}

然后，通过ApplicationInsights.config或在代码中将此初始化器添加到AI：

<ApplicationInsights>
  <TelemetryInitializers>
    <!-- Fully qualified type name, assembly name: -->
    <Add Type="MvcWebRole.Telemetry.MyTelemetryInitializer, MvcWebRole"/>
    ...
  </TelemetryInitializers>
</ApplicationInsights>

protected void Application_Start()
{
    // ...
    TelemetryConfiguration.Active.TelemetryInitializers
    .Add(new MyTelemetryInitializer());
}

Answer 2

@ [Dmitry Matveev]谢谢，但是您的建议部分有效，但是我更感兴趣的是从请求内容中添加某些信息（例如，租户名称）。为此，我最终在HttpContext.Items中添加了信息，然后通过“ MyTelemetryInitializer”访问它们，如以下链接中所述：https://github.com/Microsoft/ApplicationInsights-aspnetcore/wiki/Custom-Configuration#track-custom-traceeventmetric

将信息添加到路线的代码：

If ActiveCell >= 1 And ActiveCell.Offset(0, 1) <> "" Then

“ MyTelemetryInitializer”初始化方法的一部分：

    If (ActiveCell = 1) Or (ActiveCell = 2) Then
        MailBody = "ALERTA PRAZO ETAPA 4!!" & vbNewLine & vbNewLine & "Nº GQE " & Cells(ActiveCell.Row, 2).Value & " - " & Cells(ActiveCell.Row, 3).Value
    ElseIf (ActiveCell >= 3) Then
        MailBody = "ULTRAPASSADO PRAZO ETAPA 4!!" & vbNewLine & vbNewLine & "Nº GQE " & Cells(ActiveCell.Row, 2).Value & " - " & Cells(ActiveCell.Row, 3).Value                            
    End If

ApplicationInsights-CustomProperty在请求之间不更新

2 个答案: