vassago/Program.cs

using Microsoft.EntityFrameworkCore;
using vassago.Models;

var builder = WebApplication.CreateBuilder(args);

// Add services to the container.
builder.Services.AddControllersWithViews();
builder.Services.AddSingleton<IHostedService, vassago.ConsoleService>();
builder.Services.AddDbContext<ChattingContext>(options =>
    options.UseNpgsql(builder.Configuration.GetConnectionString("ChattingContext") ),ServiceLifetime.Transient);

var app = builder.Build();

// Configure the HTTP request pipeline.
if (!app.Environment.IsDevelopment())
{
    app.UseExceptionHandler("/Home/Error");
}

app.UseStaticFiles();
app.UseRouting();
app.UseAuthorization();
app.MapControllerRoute(
    name: "default",
    pattern: "{controller=Home}/{action=Index}/{id?}");

app.Run();