AppDefinitions for ASP.NET Core

DebugConfigurationDefinition

/// <summary>
/// Show loaded configurations for ASP.NET Core or Web API application
/// </summary>
public class DebugConfigurationDefinition : AppDefinition
{
#if DEBUG
    public override bool Enabled => true;
#else
    public override bool Enabled => false;
#endif

    public override void ConfigureApplication(WebApplication app) => DisplaySettings(app.Configuration);

    static void DisplaySettings(IConfiguration config)
    {
        var index = 0;
        var providers = config.GetChildren();
        foreach (var pair in providers)
        {
            index++;
            Console.WriteLine($"==>{index} {pair.Path} = {pair.Value}");
            DisplaySettings(pair);
        }
    }
}

DotNetEnvDefinition

/// <summary>
/// Environment variables reader from .env file
/// </summary>
public class DotNetEnvDefinition : AppDefinition
{
    public override void ConfigureServices(WebApplicationBuilder builder)
    {
        builder.Configuration.AddDotNetEnv(options: LoadOptions.TraversePath());
    }
}

OpenTelemetryDefinition

public class OpenTelemetryDefinition : AppDefinition
{
    public override void ConfigureServices(WebApplicationBuilder builder)
    {
        builder.Services.AddOpenTelemetry()
            .ConfigureResource(resource => resource.AddService("CalabongaBlog"))
            .WithMetrics(metrics =>
            {
                metrics
                    .AddAspNetCoreInstrumentation()
                    .AddHttpClientInstrumentation();

                metrics.AddOtlpExporter();
            })
            .WithTracing(tracing =>
            {
                tracing
                    .AddAspNetCoreInstrumentation()
                    .AddHttpClientInstrumentation()
                    .AddEntityFrameworkCoreInstrumentation();

                tracing.AddOtlpExporter();
            });


        builder.Logging.AddOpenTelemetry(logging => logging.AddOtlpExporter());
    }
}