private static async Task Sync()
        {
            var context = AppServices.GetService <ExplorerDbContext>();
            await context.Database.EnsureCreatedAsync();

            ExplorerSync.StartSync(context);
        }
        private static async Task StartMenu()
        {
            bool exit = false;

            while (!exit)
            {
                Console.WriteLine();
                Console.WriteLine("MENU");
                Console.WriteLine("1 - Init DB");
                Console.WriteLine("2 - Sync DB");
                Console.WriteLine("3 - Stop sync");
                Console.WriteLine("4 - Change RPC server");
                Console.WriteLine("5 - Ensure no missing blocks");
                Console.WriteLine("6 - Update all address balances");
                Console.WriteLine("7 - Delete DB");
                Console.WriteLine("8 - Exit");
                var option = Console.ReadKey().KeyChar;

                switch (option)
                {
                case '1':
                    ExplorerSync.ContinueSync = false;
                    Console.Clear();
                    Console.WriteLine("Initializing db...");
                    await InitDb();

                    break;

                case '2':
                    Console.Clear();
                    ExplorerSync.ContinueSync = true;
                    Console.WriteLine("Starting sync process");
                    await Sync();

                    break;

                case '3':
                    ExplorerSync.ContinueSync = false;
                    break;

                case '4':
                    Console.Clear();
                    exit = true;
                    await ChangeRpcServer();

                    break;

                case '5':
                    ExplorerSync.ContinueSync = false;
                    Console.Clear();
                    EnsureNoMissingBlocks();
                    break;

                case '6':
                    ExplorerSync.ContinueSync = false;
                    Console.Clear();
                    ExplorerSync.UpdateAllAddressBalances();
                    break;

                case '7':
                    ExplorerSync.ContinueSync = false;
                    Console.Clear();
                    await DropDb();

                    break;

                case '8':
                    exit = true;
                    break;
                }
            }
        }