wip

CryptoExchange.Net/Clients/CryptoExchangeClient.cs

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+using CryptoExchange.Net.Interfaces;
+using CryptoExchange.Net.Interfaces.CommonClients;
+using Microsoft.Extensions.DependencyInjection;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace CryptoExchange.Net.Clients
+{
+    public class CryptoExchangeClient : ICryptoExchangeClient, IDisposable
+    {
+        private Dictionary<Type, object?> _serviceCache = new Dictionary<Type, object?>();
+
+        private readonly IServiceProvider _serviceProvider;
+
+        public CryptoExchangeClient(IServiceProvider serviceProvider)
+        {
+            _serviceProvider = serviceProvider;
+            _serviceCache = new Dictionary<Type, object?>();
+        }
+
+        public IEnumerable<ISpotClient> GetSpotClients()
+        {
+            return _serviceProvider.GetServices<ISpotClient>().ToList();
+        }
+
+        public T? TryGet<T>()
+        {
+            var type = typeof(T);
+            if (_serviceCache.TryGetValue(type, out var value))
+                return (T?)value;
+
+            var result = _serviceProvider.GetService<T>();
+            _serviceCache.Add(type, result);
+            return result;
+        }
+
+        public void Dispose()
+        {
+            _serviceCache.Clear();
+        }
+    }
+}

CryptoExchange.Net/Interfaces/ICryptoExchangeClient.cs

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+using CryptoExchange.Net.Interfaces;
+using CryptoExchange.Net.Interfaces.CommonClients;
+using Microsoft.Extensions.DependencyInjection;
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace CryptoExchange.Net.Clients
+{
+    public interface ICryptoExchangeClient
+    {
+        IEnumerable<ISpotClient> GetSpotClients();
+        T? TryGet<T>();
+    }
+}