telegram-bot/Core/Extensions/StartupExtension.cs

using System.Collections.Concurrent;
using Kruzya.TelegramBot.Core.Cache;
using Microsoft.Extensions.DependencyInjection;

namespace Kruzya.TelegramBot.Core.Extensions
{
    public static class StartupExtension
    {
        public static IServiceCollection AddQueue<T>(this IServiceCollection collection)
            => collection.AddSingleton<ConcurrentQueue<T>>();

        public static IServiceCollection AddMemoryCache<TKey, TValue>(this IServiceCollection collection)
            => collection.AddSingleton<MemoryCache<TKey, TValue>>();
    }
}