Program.cs

using Microsoft.EntityFrameworkCore;
using NLog.Web;

//using Microsoft.AspNetCore.Diagnostics.EntityFrameworkCore;
//using Microsoft.Extensions.DependencyInjection;
//using Microsoft.Extensions.Hosting;
using WebAPI_week1;
using WebAPI_week1.WeatherWorkers;

var builder = WebApplication.CreateBuilder(args);

//CORS
string MyAllowSpecificOrigins = "_myAllowSpecificOrigins";
builder.Services.AddCors(options =>
{
    options.AddPolicy(MyAllowSpecificOrigins, builder => builder.AllowAnyOrigin().AllowAnyHeader().AllowAnyMethod());
});

//CONFIGURE LOGGING TO WRITE TO FILE
builder.Logging.ClearProviders();
builder.Host.UseNLog();


//builder.Services.AddTransient<WeatherWorker>();

// add distributed memory cache
builder.Services.AddMemoryCache();
builder.Services.AddDistributedMemoryCache();
builder.Services.AddSession(options =>
{
    options.IdleTimeout = TimeSpan.FromMinutes(30);
    options.Cookie.HttpOnly = true;
    options.Cookie.IsEssential = true;
});

//REGISTER DBCONTEXT
builder.Services.AddAutoMapper(AppDomain.CurrentDomain.GetAssemblies());
builder.Services.AddDbContext<PersonsDB>(options =>
    options.UseNpgsql(builder.Configuration.GetConnectionString("DefaultConnection")));

//REGISTER SERVICES
builder.Services.AddHttpClient();
builder.Services.AddSession();
builder.Services.AddAutoMapper(AppDomain.CurrentDomain.GetAssemblies());
builder.Services.AddScoped<PersonsDB>();  // Scoped because it will be injected into a service that is singleton
builder.Services.AddHostedService<WeatherWorker>();

//ADD CONTROLLERS AND SWAGGER
builder.Services.AddControllers();
builder.Services.AddControllers().AddNewtonsoftJson(options =>
    options.SerializerSettings.ReferenceLoopHandling = Newtonsoft.Json.ReferenceLoopHandling.Ignore);
builder.Services.AddEndpointsApiExplorer();
builder.Services.AddSwaggerGen();

var app = builder.Build();
var scope = app.Services.CreateAsyncScope();
var context = scope.ServiceProvider.GetRequiredService<PersonsDB>();
context.Database.Migrate();

if (app.Environment.IsDevelopment())
{
    app.UseSwagger();
    app.UseSwaggerUI();
}

app.UseSession();

app.UseHttpsRedirection();

app.UseAuthorization();

app.MapControllers();

app.Run();