using FluentValidation;using MediatR;using MediatrExample.ApplicationCore.Common.Behaviours;using MediatrExample.ApplicationCore.Infrastructure.Persistence;using Microsoft.AspNetCore.Authentication.JwtBearer;using Microsoft.AspNetCore.Identity;using Microsoft.Extensions.Configuration;using Microsoft.Extensions.DependencyInjection;using Microsoft.IdentityModel.Tokens;using System.Reflection;using System.Text;namespace MediatrExample.ApplicationCore;public static class DependencyInjection{    public static IServiceCollection AddApplicationCore(this IServiceCollection services)    {        services.AddValidatorsFromAssembly(Assembly.GetExecutingAssembly());        services.AddMediatR(Assembly.GetExecutingAssembly());        services.AddTransient(typeof(IPipelineBehavior<,>), typeof(ValidationBehaviour<,>));        services.AddAutoMapper(Assembly.GetExecutingAssembly());        return services;    }    public static IServiceCollection AddPersistence(this IServiceCollection services, string connectionString)    {        services.AddSqlite<MyAppDbContext>(connectionString);        return services;    }    public static IServiceCollection AddSecurity(this IServiceCollection services, IConfiguration config)    {        services            .AddIdentityCore<IdentityUser>()            .AddRoles<IdentityRole>()            .AddEntityFrameworkStores<MyAppDbContext>();        services            .AddHttpContextAccessor()            .AddAuthorization()            .AddAuthentication(JwtBearerDefaults.AuthenticationScheme)            .AddJwtBearer(options =>            {                options.TokenValidationParameters = new TokenValidationParameters                {                    ValidateIssuer = true,                    ValidateAudience = true,                    ValidateLifetime = true,                    ValidateIssuerSigningKey = true,                    ValidIssuer = config["Jwt:Issuer"],                    ValidAudience = config["Jwt:Audience"],                    IssuerSigningKey = new SymmetricSecurityKey(Encoding.UTF8.GetBytes(config["Jwt:Key"]))                };            });        return services;    }}

using FluentValidation.AspNetCore;using MediatrExample.ApplicationCore.Common.Interfaces;using MediatrExample.WebApi.Filters;using MediatrExample.WebApi.Services;using Microsoft.AspNetCore.Mvc;using Microsoft.OpenApi.Models;namespace MediatrExample.WebApi;public static class DependencyInjection{    public static IServiceCollection AddWebApi(this IServiceCollection services)    {        services.AddEndpointsApiExplorer();        services.AddSwaggerGen(c =>        {            c.SwaggerDoc("v1", new OpenApiInfo            {                Title = "My API",                Version = "v1"            });            c.AddSecurityDefinition("Bearer", new OpenApiSecurityScheme            {                In = ParameterLocation.Header,                Description = "Please insert JWT with Bearer into field",                Name = "Authorization",                Type = SecuritySchemeType.ApiKey            });            c.AddSecurityRequirement(new OpenApiSecurityRequirement            {                {                    new OpenApiSecurityScheme                    {                        Reference = new OpenApiReference                        {                            Type = ReferenceType.SecurityScheme,                            Id = "Bearer"                        }                    },                    new string[] { }                }            });        });        services.AddControllers(options =>            options.Filters.Add<ApiExceptionFilterAttribute>())                .AddFluentValidation();        services.Configure<ApiBehaviorOptions>(options =>            options.SuppressModelStateInvalidFilter = true);        services.AddScoped<ICurrentUserService, CurrentUserService>();        return services;    }}

using MediatrExample.ApplicationCore;using MediatrExample.ApplicationCore.Domain;using MediatrExample.ApplicationCore.Infrastructure.Persistence;using MediatrExample.WebApi;using Microsoft.AspNetCore.Identity;var builder = WebApplication.CreateBuilder(args);builder.Services.AddWebApi();builder.Services.AddApplicationCore();builder.Services.AddPersistence(builder.Configuration.GetConnectionString("Default"));builder.Services.AddSecurity(builder.Configuration);var app = builder.Build();// Configure the HTTP request pipeline.if (app.Environment.IsDevelopment()){    app.UseSwagger();    app.UseSwaggerUI();}app.UseHttpsRedirection();app.UseAuthentication();app.UseAuthorization();app.MapControllers();await SeedProducts();app.Run();// Seed omitido...