FMP-API/test/API.HttpApi.Client.ConsoleTestApp/Program.cs

using System.Threading.Tasks;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;

namespace API.HttpApi.Client.ConsoleTestApp
{
    class Program
    {
        static async Task Main(string[] args)
        {
            await CreateHostBuilder(args).RunConsoleAsync();
        }

        public static IHostBuilder CreateHostBuilder(string[] args) =>
            Host.CreateDefaultBuilder(args)
                .ConfigureAppConfiguration(build =>
                {
                    build.AddJsonFile("appsettings.secrets.json", optional: true);
                })
                .ConfigureServices((hostContext, services) =>
                {
                    services.AddHostedService<ConsoleTestAppHostedService>();
                });
    }
}