Program file with AddHostedService<IpHostedService>()

Program.cs

using DotNetIpFilter.Services;

var builder = WebApplication.CreateBuilder(args);

// Add services to the container.
builder.Services.AddControllers();
// Learn more about configuring Swagger/OpenAPI at https://aka.ms/aspnetcore/swashbuckle
builder.Services.AddEndpointsApiExplorer();
builder.Services.AddSwaggerGen();

builder.Services.AddScoped<IIpFilterService, IpFilterService>();

// To add the IP addresses to filter
builder.Services.AddHostedService<IpHostedService>();
// Enable the Ip Action Filter with Admin Safe IP List
builder.Services.AddScoped(container =>
{
    var loggerFactory = container.GetRequiredService<ILoggerFactory>();
    var logger = loggerFactory.CreateLogger<IpActionFilter>();
    return new IpActionFilter(builder.Configuration["AdminSafeIpList"], logger);
});

var app = builder.Build();

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

app.UseHttpsRedirection();

app.UseAuthorization();

app.MapControllers();

app.Run();