Program.cs

using Microsoft.AspNetCore.Mvc.ApiExplorer;
using Microsoft.AspNetCore.Mvc.Infrastructure;
using Microsoft.AspNetCore.Mvc.Routing;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Options;
using Newtonsoft.Json.Serialization;
using SampleWebApiAspNetCore;
using SampleWebApiAspNetCore.Common;
using SampleWebApiAspNetCore.Helpers;
using SampleWebApiAspNetCore.MappingProfiles;
using SampleWebApiAspNetCore.Repositories;
using SampleWebApiAspNetCore.Services;
using Swashbuckle.AspNetCore.SwaggerGen;

var builder = WebApplication.CreateBuilder(args);

// Add services to the container.

builder.Services.AddControllers()
                .AddNewtonsoftJson(options =>
                       options.SerializerSettings.ContractResolver = new CamelCasePropertyNamesContractResolver());

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

builder.Services.AddCustomCors("AllowAllOrigins");

//All services of the application will be configured and registered using a generic approach by AddContracts.
builder.Services.AddContracts();
//builder.Services.AddSingleton<ISeedDataService, SeedDataService>();
//builder.Services.AddScoped<IFoodRepository, FoodSqlRepository>();
builder.Services.AddScoped(typeof(ILinkService<>), typeof(LinkService<>));
builder.Services.AddTransient<IConfigureOptions<SwaggerGenOptions>, ConfigureSwaggerOptions>();

builder.Services.AddSingleton<IActionContextAccessor, ActionContextAccessor>();
builder.Services.AddSingleton<IUrlHelperFactory, UrlHelperFactory>();

builder.Services.AddRouting(options => options.LowercaseUrls = true);
builder.Services.AddVersioning();

builder.Services.AddDbContext<FoodDbContext>(opt =>
    opt.UseInMemoryDatabase("FoodDatabase"));

builder.Services.AddAutoMapper(typeof(FoodMappings));

var app = builder.Build();

var apiVersionDescriptionProvider = app.Services.GetRequiredService<IApiVersionDescriptionProvider>();
var loggerFactory = app.Services.GetRequiredService<ILoggerFactory>();

// Configure the HTTP request pipeline.
if (app.Environment.IsDevelopment())
{
    app.UseSwagger();
    app.UseSwaggerUI(
        options =>
        {
            foreach (var description in apiVersionDescriptionProvider.ApiVersionDescriptions)
            {
                options.SwaggerEndpoint(
                    $"/swagger/{description.GroupName}/swagger.json",
                    description.GroupName.ToUpperInvariant());
            }
        });

    app.SeedData();
}
else
{
    app.AddProductionExceptionHandling(loggerFactory);
}

app.UseCors("AllowAllOrigins");
app.UseHttpsRedirection();

app.UseAuthorization();

app.MapControllers();

app.Run();