I have a ASP.NET Core 3.1 running in AWS Lambda with following setup:
<ItemGroup>
<PackageReference Include="Amazon.Lambda.AspNetCoreServer" Version="5.1.1" />
<PackageReference Include="Amazon.Lambda.Logging.AspNetCore" Version="3.0.1" />
<PackageReference Include="AutoMapper" Version="10.0.0" />
<PackageReference Include="AutoMapper.Collection" Version="7.0.0" />
<PackageReference Include="AutoMapper.Extensions.Microsoft.DependencyInjection" Version="8.0.1" />
<PackageReference Include="AWS.Logger.AspNetCore" Version="2.2.0" />
<PackageReference Include="AWSSDK.DynamoDBv2" Version="3.3.105.26" />
<PackageReference Include="AWSSDK.Extensions.NETCore.Setup" Version="3.3.101" />
<PackageReference Include="Microsoft.AspNetCore.Mvc.NewtonsoftJson" Version="3.1.4" />
...
LambdaEntryPoint.cs:
public class LambdaEntryPoint : Amazon.Lambda.AspNetCoreServer.APIGatewayProxyFunction
{
protected override void Init(IWebHostBuilder builder)
{
builder
.ConfigureAppConfiguration((hostingContext, config) =>
{
var env = hostingContext.HostingEnvironment;
config
.SetBasePath(env.ContentRootPath)
.AddJsonFile("appsettings.json", optional: true)
.AddJsonFile($"appsettings.{env.EnvironmentName}.json", optional: true);
config.AddEnvironmentVariables();
})
.ConfigureLogging(logging =>
{
logging.AddAWSProvider();
// // When you need logging below set the minimum level. Otherwise the logging framework will default to Informational for external providers.
// logging.SetMinimumLevel(LogLevel.Debug);
})
.UseStartup<Startup>()
;
}
}
appSettings.json
{
"Logging": {
"IncludeLogLevel": true,
"IncludeCategory": true,
"IncludeNewline": true,
"IncludeException": true,
"IncludeEventId": false,
"IncludeScopes": false,
"LogLevel": {
"Default": "Information",
"System": "Warning",
"Microsoft": "Warning",
"Microsoft.Hosting.Lifetime": "Warning"
}
},
"AllowedHosts": "*"
}
Final result in AWS CloudWatch log looks like this:

There are invalid characters [40m[32minfo[39m[22m[49m: and also redundant lines. This is just a sample, but in case of exceptions with stack trace, logs are getting pretty long and are hard to read.
I am simply using Microsoft's ASP.NET Core default logger interface ILogger<MySampleController> and then calling
this.logger.LogInformation($"Mapping done, took {sw.ElapsedMilliseconds} ms.");
What I am doing wrong? How to get log properly configured for AWS Cloudwatch?
Thanks!