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I'm new to .NET core. How to get the correlation ID to log the response using NLog?

James Z
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Nithin Bhaharadwaj
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  • Duplicate of https://stackoverflow.com/questions/30593801/approach-for-tying-all-nlog-logs-back-to-the-original-request-within-webapi/54854029#54854029 ? – Rolf Kristensen Feb 28 '20 at 19:12

2 Answers2

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You could use ${activityid} to render System.Diagnostics trace correlation id.

Or if you need request.GetCorrelationId(), you could do this:

You could do this:

// using NLog.Web package

// register as soon as possible
AspNetLayoutRendererBase.Register("myCorrelationId", 
      (logEventInfo, httpContext, loggingConfiguration)
           => httpContext.Request.GetCorrelationId());

and render like ${myCorrelationId}

Julian
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Not sure what is meant by "CorrelationId" but you can do this with NLog.Web.AspNetCore:

layout="${activityid:whenEmpty=${mdlc:item=RequestId:whenEmpty=${aspnet-TraceIdentifier}}}"

And if you are using JsNLog then you can do this:

layout="${aspnet-request:header=JSNLog-RequestId:whenEmpty=${mdlc:item=RequestId:whenEmpty=${aspnet-TraceIdentifier}}}"
Rolf Kristensen
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