Updated example to make it clear that structured logging is not possible with current compiler (dotnet/roslyn#142).

Author: PawelGerr

README.md

@@ -1,2 +1,3 @@
-[![Build status](https://ci.appveyor.com/api/projects/status/ys8hswkylkqbf734?svg=true)](https://ci.appveyor.com/project/PawelGerr/thinktecture-extensions-logging)
-
+[![Build status](https://ci.appveyor.com/api/projects/status/ys8hswkylkqbf734?svg=true)](https://ci.appveyor.com/project/PawelGerr/thinktecture-extensions-logging)
+
+Adds string interpolation support to [ILogger](https://www.nuget.org/packages/Microsoft.Extensions.Logging.Abstractions/).

Thinktecture.Extensions.Logging.sln

@@ -48,7 +48,6 @@ Global
 		HideSolutionNode = FALSE
 	EndGlobalSection
 	GlobalSection(NestedProjects) = preSolution
-		{91187C47-B86C-4E6B-8812-F27C8C177842} = {F2EF52EE-D542-49B4-A80B-6DFE4BE457C9}
 		{2CBCA633-63D3-4B45-8773-9D1A60FB1D51} = {815137E4-6499-47FA-8191-C646BC474B54}
 		{0756A7B3-BFC2-4C1C-BFAC-69CC6A036D99} = {34773EDF-B53E-49D6-8586-93D838AE023F}
 		{F92AE982-743E-435C-80F9-A74A3A289844} = {F2EF52EE-D542-49B4-A80B-6DFE4BE457C9}

examples/Thinktecture.Extensions.Logging.Abstractions.Example/Program.cs

@@ -1,27 +1,47 @@
 using System;
 using Microsoft.Extensions.Logging;
 using Serilog;
+using Serilog.Core;
+using Serilog.Events;
 
 namespace Thinktecture.Extensions.Logging.Abstractions.Example
 {
-	class Program
-	{
-		static void Main(string[] args)
-		{
-			var serilog = new LoggerConfiguration()
-				.WriteTo.Console()
-				.CreateLogger();
-			var logger = new LoggerFactory()
-				.AddSerilog(serilog)
-				.CreateLogger<Program>();
+   class Program
+   {
+      static void Main(string[] args)
+      {
+         var serilog = new LoggerConfiguration()
+                       .WriteTo.Console()
+                       .WriteTo.Sink(new MySink())
+                       .CreateLogger();
+         var logger = new LoggerFactory()
+                      .AddSerilog(serilog)
+                      .CreateLogger<Program>();
 
-			var a = "text";
-			var b = 42;
-			logger.LogInformation((string)$"Using standard extension method: a = {a}, b = {b}");
-			logger.LogInformation($"Using new extension method: a = {a}, b = {b}");
+         var a = "text";
+         var b = 42;
+         logger.LogInformation((string)$"Using standard extension method: a = {a}, b = {b}");
+         logger.LogInformation($"Using new extension method: a = {a}, b = {b}");
 
-			Console.WriteLine("Press ENTER to exit.");
-			Console.ReadLine();
-		}
-	}
+         Console.WriteLine("Press ENTER to exit.");
+         Console.ReadLine();
+      }
+   }
+
+   internal class MySink : ILogEventSink
+   {
+      public void Emit(LogEvent logEvent)
+      {
+         Console.WriteLine();
+         Console.WriteLine($"Template: {logEvent.MessageTemplate.Text}");
+         Console.WriteLine("Properties:");
+
+         foreach (var kvp in logEvent.Properties)
+         {
+            // Issue: formattable string does not capture the names of the placeholders
+            // https://github.com/dotnet/roslyn/issues/142
+            Console.WriteLine($"\t{kvp.Key} = {kvp.Value}");
+         }
+      }
+   }
 }

examples/Thinktecture.Extensions.Logging.Abstractions.Example/Thinktecture.Extensions.Logging.Abstractions.Example.csproj

@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>netcoreapp2.0</TargetFramework>
+    <TargetFramework>netcoreapp2.1</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

tests/Thinktecture.Extensions.Logging.Abstractions.Tests/Thinktecture.Extensions.Logging.Abstractions.Tests.csproj

@@ -1,6 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
-    <TargetFramework>netcoreapp2.0</TargetFramework>
+    <TargetFramework>netcoreapp2.1</TargetFramework>
     <GenerateRuntimeConfigurationFiles>true</GenerateRuntimeConfigurationFiles>
     <RootNamespace>Thinktecture</RootNamespace>
   </PropertyGroup>