Program.cs

using Microsoft.AspNetCore.Authentication;
using Microsoft.EntityFrameworkCore;
using ReservationSystem22.Models;
using ReservationSysten22.Middleware;
using ReservationSysten22.Repositories;
using ReservationSysten22.Services;

var builder = WebApplication.CreateBuilder(args);

// Add services to the container.

builder.Services.AddControllers();
builder.Services.AddAuthentication("BasicAuthentication").AddScheme<AuthenticationSchemeOptions, BasicAuthenticationHandler>("BasicAuthentication", null);
builder.Services.AddScoped<IItemRepository, ItemRepository>();
builder.Services.AddScoped<IItemService, ItemService>();
builder.Services.AddScoped<IUserRepository, UserRepository>();
builder.Services.AddScoped<IUserService, UserService>();
builder.Services.AddScoped<IReservationRepository, ReservationRepository>();
builder.Services.AddScoped<IReservationService, ReservationService>();
builder.Services.AddScoped<IUserAuthenticationService, UserAuthenticationService>();
builder.Services.AddDbContext<ReservationContext>(opt =>
    opt.UseSqlServer(builder.Configuration.GetConnectionString("ReservationDB"))
);

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

builder.Services.AddMvc(options =>
{
    options.SuppressAsyncSuffixInActionNames = false;
});

var app = builder.Build();

using (var scope = app.Services.CreateScope())
{
    ReservationContext dbcontext = scope.ServiceProvider.GetRequiredService<ReservationContext>();
    dbcontext.Database.EnsureCreated();
}

// Configure the HTTP request pipeline.
if (app.Environment.IsDevelopment())
{
    //app.UseSwagger();
    //app.UseSwaggerUI();
}

app.UseHttpsRedirection();

app.UseMiddleware<ApiKeyMiddleware>();

app.UseAuthentication();

app.UseAuthorization();

app.MapControllers();

app.Run();