add nlog.config

examples/ASP.NET Core 3/ASP.NET Core 3 - VS2019/NLog.config

@@ -0,0 +1,35 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<nlog xmlns="http://www.nlog-project.org/schemas/NLog.xsd"
+      xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+      autoReload="true"
+      throwConfigExceptions="true"
+      internalLogLevel="info"
+      internalLogFile="c:\temp\internal-nlog-AspNetCore3.txt">
+
+  <!-- enable asp.net core layout renderers -->
+  <extensions>
+    <add assembly="NLog.Web.AspNetCore"/>
+  </extensions>
+
+  <!-- the targets to write to -->
+  <targets>
+    <!-- write logs to file  -->
+    <target xsi:type="File" name="allfile" fileName="c:\temp\nlog-AspNetCore3-all-${shortdate}.log"
+            layout="${longdate}|${event-properties:item=EventId_Id:whenEmpty=0}|${uppercase:${level}}|${logger}|${message} ${exception:format=tostring}" />
+
+    <!-- another file log, only own logs. Uses some ASP.NET core renderers -->
+    <target xsi:type="File" name="ownFile-web" fileName="c:\temp\nlog-AspNetCore3-own-${shortdate}.log"
+            layout="${longdate}|${event-properties:item=EventId_Id:whenEmpty=0}|${uppercase:${level}}|${logger}|${message} ${exception:format=tostring}|url: ${aspnet-request-url}|action: ${aspnet-mvc-action}|${callsite}" />
+  </targets>
+
+  <!-- rules to map from logger name to target -->
+  <rules>
+    <!--All logs, including from Microsoft-->
+    <logger name="*" minlevel="Trace" writeTo="allfile" />
+
+    <!--Skip non-critical Microsoft logs and so log only own logs-->
+    <logger name="Microsoft.*" maxlevel="Info" final="true" />  <!-- BlackHole -->
+
+    <logger name="*" minlevel="Trace" writeTo="ownFile-web" />
+  </rules>
+</nlog>