Configure logging with appsettings.json

Use appsettings.json to configure logging instead of code.

src/LondonTravel.Skill/AlexaFunction.cs

@@ -7,7 +7,6 @@
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.DependencyInjection.Extensions;
 using Microsoft.Extensions.Logging;
-using LogLevel = Microsoft.Extensions.Logging.LogLevel;
 
 namespace MartinCostello.LondonTravel.Skill;
 
@@ -103,12 +102,7 @@ public Task<bool> InitializeAsync()
     /// <param name="services">The service collection to configure.</param>
     protected virtual void ConfigureServices(IServiceCollection services)
     {
-        services.AddLogging((builder) =>
-        {
-            builder.SetMinimumLevel(LogLevel.Information)
-                   .AddFilter(FilterLogs)
-                   .AddJsonConsole();
-        });
+        services.AddLogging((builder) => builder.AddJsonConsole());
 
         services.AddHttpClients();
 
@@ -140,27 +134,6 @@ protected virtual void Dispose(bool disposing)
         }
     }
 
-    /// <summary>
-    /// Filters the Lambda logs.
-    /// </summary>
-    /// <param name="name">The name of the log.</param>
-    /// <param name="level">The log level.</param>
-    /// <returns>
-    /// <see langword="true"/> to log the message; otherwise <see langword="false"/>.
-    /// </returns>
-    private static bool FilterLogs(string name, LogLevel level)
-    {
-        if (level < LogLevel.Warning &&
-            (name.StartsWith("System.", StringComparison.Ordinal) ||
-             name.StartsWith("Microsoft.", StringComparison.Ordinal) ||
-             name.StartsWith("Polly", StringComparison.Ordinal)))
-        {
-            return false;
-        }
-
-        return true;
-    }
-
     /// <summary>
     /// Creates the <see cref="ServiceProvider"/> to use.
     /// </summary>

src/LondonTravel.Skill/LondonTravel.Skill.csproj

@@ -29,5 +29,6 @@
     <Compile Update="Strings.Designer.cs" AutoGen="True" DependentUpon="Strings.resx" DesignTime="True" />
     <EmbeddedResource Update="Strings.resx" Generator="ResXFileCodeGenerator" LastGenOutput="Strings.Designer.cs" />
     <EmbeddedResource Update="Strings.*.resx" DependentUpon="Strings.resx" />
+    <None Include="appsettings.json" CopyToPublishDirectory="PreserveNewest" />
   </ItemGroup>
 </Project>

src/LondonTravel.Skill/appsettings.json

@@ -0,0 +1,10 @@
+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft": "Warning",
+      "Polly": "Warning",
+      "System": "Warning"
+    }
+  }
+}