Class for start and initial Grpc service instance

App.cs

public class App
{
     private readonly Grpc.Core.Server _serverInstance;

     public App(string host, int port, params ServerServiceDefinition[] services)
     {
          _serverInstance = new Grpc.Core.Server
         {
              Ports =
             {
                 new ServerPort(host, port, ServerCredentials.Insecure)
             }
         };

         InitialAndStartServices(services);
     }

     private void InitialAndStartServices(ServerServiceDefinition[] services)
     {
         services.ToList().ForEach(srv => 
         {
             _serverInstance.Services.Add(srv);
         });

         _serverInstance.Start();

         Console.WriteLine($"Server listening on host = {_serverInstance.Ports.First().Host}, port = {_serverInstance.Ports.First().Port}");
    }
}