Program.cs

using Microsoft.AspNetCore.Mvc.Formatters; // To use IOutputFormatter.
using Northwind.EntityModels; // To use AddNorthwindContext method.
using Microsoft.Extensions.Caching.Memory; // To use IMemoryCache and so on.
using Northwind.WebApi.Repositories; // To use ICustomerRepository.
using Swashbuckle.AspNetCore.SwaggerUI; // To use SubmitMethod.
using Microsoft.AspNetCore.HttpLogging; // To use HttpLoggingFields.

const string corsPolicyName = "allowWasmClient";

var builder = WebApplication.CreateBuilder(args);

builder.Services.AddHttpLogging(options =>
{
  options.LoggingFields = HttpLoggingFields.All;
  options.RequestBodyLogLimit = 4096; // Default is 32k.
  options.ResponseBodyLogLimit = 4096; // Default is 32k.
});

builder.Services.AddSingleton<IMemoryCache>(
  new MemoryCache(new MemoryCacheOptions()));

// Add services to the container.
builder.Services.AddNorthwindContext();

builder.Services.AddControllers(options =>
{
  WriteLine("Default output formatters:");
  foreach (IOutputFormatter formatter in options.OutputFormatters)
  {
    OutputFormatter? mediaFormatter = formatter as OutputFormatter;
    if (mediaFormatter is null)
    {
      WriteLine($" {formatter.GetType().Name}");
    }
    else // OutputFormatter class has SupportedMediaTypes.
    {
      WriteLine(" {0}, Media types: {1}",
      arg0: mediaFormatter.GetType().Name,
      arg1: string.Join(", ",
      mediaFormatter.SupportedMediaTypes));
    }
  }
})
.AddXmlDataContractSerializerFormatters()
.AddXmlSerializerFormatters();

// Learn more about configuring Swagger/OpenAPI at https://aka.ms/aspnetcore/swashbuckle
builder.Services.AddEndpointsApiExplorer();
builder.Services.AddSwaggerGen();

builder.Services.AddScoped<ICustomerRepository, CustomerRepository>();

builder.Services.AddHealthChecks()
  .AddDbContextCheck<NorthwindContext>()
  // Execute SELECT 1 using the specified connection string.
  .AddSqlServer("Data Source=.;Initial Catalog=Northwind;Integrated Security=true;TrustServerCertificate=true;");

builder.Services.AddCors(options =>
{
  // Allow HTTP calls from the Blazor Web App project.
  options.AddPolicy(name: corsPolicyName,
    policy =>
    {
      policy.AllowAnyHeader();
      policy.WithOrigins("https://localhost:5161",
        "http://localhost:5160");
    });
});

var app = builder.Build();

// Configure the HTTP request pipeline.
if (app.Environment.IsDevelopment())
{
  app.UseSwagger();
  app.UseSwaggerUI(c =>
  {
    c.SwaggerEndpoint("/swagger/v1/swagger.json",
      "Northwind Service API Version 1");

    c.SupportedSubmitMethods(new[] {
      SubmitMethod.Get, SubmitMethod.Post,
      SubmitMethod.Put, SubmitMethod.Delete });
  });
}

app.UseHttpLogging();

app.UseHttpsRedirection();

app.UseAuthorization();

app.UseHealthChecks(path: "/howdoyoufeel");

app.UseMiddleware<SecurityHeaders>();

app.UseCors(corsPolicyName);

app.MapControllers();

app.Run();