parr_api/PARR.Test/Program.cs

using PARR.EsppApi;
using PARR.Test;

IHost host = Host.CreateDefaultBuilder(args)
    .ConfigureServices((hostContext, services) =>
    {
        services.InstallEsppApiServices(hostContext.Configuration);

        services.AddHostedService<Worker>();
    })
    .Build();

host.Run();