string name;
if (user.InputName != null && user.InputName.Trim() != "")
{
    name = user.InputName.Trim();
}
else
{
    name = "Гость";
}

var name = string.IsNullOrWhiteSpace(user.InputName)
    ? "Гость"
    : user.InputName.Trim();

using System;
using System.Net.Http;
using Microsoft.Extensions.DependencyInjection;

var services = new ServiceCollection();

services.AddHttpClient("github", client =>
{
    client.BaseAddress = new Uri("https://api.github.com/");
    client.DefaultRequestHeaders.UserAgent.ParseAdd("CSharpReadySample");
});

var provider = services.BuildServiceProvider();

var factory = provider.GetRequiredService<IHttpClientFactory>();

using var client = factory.CreateClient("github");

var response = await client.GetAsync("repos/dotnet/runtime");
var content  = await response.Content.ReadAsStringAsync();

Console.WriteLine(content[..200] + "...");

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var lastChar = input[input.Length - 1];
var withoutLast = input.Substring(0, input.Length - 1);

var lastChar = input[^1];    // последний символ
var withoutLast = input[..^1]; // всё, кроме последнего

using System;
using System.Threading;

int total = 100;

for (int i = 0; i <= total; i++)
{
    DrawProgressBar(i, total);
    Thread.Sleep(50); // имитация долгой работы
}

Console.WriteLine();
Console.WriteLine("Готово!");

static void DrawProgressBar(int current, int total)
{
    int width = 30; // ширина прогресс-бара в символах

    double progress = (double)current / total;
    int filled = (int)(progress * width);

    string bar = new string('#', filled) + new string('-', width - filled);

    Console.Write($"\r[{bar}] {progress:P0}");
}

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