Feature/system.text.json (#192)

Initial support for System.Text.Json and some refactoring

CryptoExchange.Net/Interfaces/IMessageAccessor.cs

@@ -0,0 +1,100 @@
+using CryptoExchange.Net.Converters.MessageParsing;
+using CryptoExchange.Net.Objects;
+using System;
+using System.Collections.Generic;
+using System.IO;
+
+namespace CryptoExchange.Net.Interfaces
+{
+    /// <summary>
+    /// Message accessor
+    /// </summary>
+    public interface IMessageAccessor
+    {
+        /// <summary>
+        /// Is this a json message
+        /// </summary>
+        bool IsJson { get; }
+        /// <summary>
+        /// Is the original data available for retrieval
+        /// </summary>
+        bool OriginalDataAvailable { get; }
+        /// <summary>
+        /// The underlying data object
+        /// </summary>
+        object? Underlying { get; }
+        /// <summary>
+        /// Clear internal data structure
+        /// </summary>
+        void Clear();
+        /// <summary>
+        /// Get the type of node
+        /// </summary>
+        /// <returns></returns>
+        NodeType? GetNodeType();
+        /// <summary>
+        /// Get the type of node
+        /// </summary>
+        /// <param name="path">Access path</param>
+        /// <returns></returns>
+        NodeType? GetNodeType(MessagePath path);
+        /// <summary>
+        /// Get the value of a path
+        /// </summary>
+        /// <typeparam name="T"></typeparam>
+        /// <param name="path"></param>
+        /// <returns></returns>
+        T? GetValue<T>(MessagePath path);
+        /// <summary>
+        /// Get the values of an array
+        /// </summary>
+        /// <typeparam name="T"></typeparam>
+        /// <param name="path"></param>
+        /// <returns></returns>
+        List<T?>? GetValues<T>(MessagePath path);
+        /// <summary>
+        /// Deserialize the message into this type
+        /// </summary>
+        /// <param name="type"></param>
+        /// <param name="path"></param>
+        /// <returns></returns>
+        CallResult<object> Deserialize(Type type, MessagePath? path = null);
+        /// <summary>
+        /// Deserialize the message into this type
+        /// </summary>
+        /// <param name="path"></param>
+        /// <returns></returns>
+        CallResult<T> Deserialize<T>(MessagePath? path = null);
+
+        /// <summary>
+        /// Get the original string value
+        /// </summary>
+        /// <returns></returns>
+        string GetOriginalString();
+    }
+
+    /// <summary>
+    /// Stream message accessor
+    /// </summary>
+    public interface IStreamMessageAccessor : IMessageAccessor
+    {
+        /// <summary>
+        /// Load a stream message
+        /// </summary>
+        /// <param name="stream"></param>
+        /// <param name="bufferStream"></param>
+        bool Read(Stream stream, bool bufferStream);
+    }
+
+    /// <summary>
+    /// Byte message accessor
+    /// </summary>
+    public interface IByteMessageAccessor : IMessageAccessor
+    {
+        /// <summary>
+        /// Load a data message
+        /// </summary>
+        /// <param name="data"></param>
+        bool Read(ReadOnlyMemory<byte> data);
+    }
+}

CryptoExchange.Net/Interfaces/IMessageProcessor.cs

@@ -1,7 +1,6 @@
 using CryptoExchange.Net.Objects;
 using CryptoExchange.Net.Objects.Sockets;
 using CryptoExchange.Net.Sockets;
-using CryptoExchange.Net.Sockets.MessageParsing.Interfaces;
 using System;
 using System.Collections.Generic;
 using System.Threading.Tasks;
@@ -18,6 +17,10 @@ namespace CryptoExchange.Net.Interfaces
         /// </summary>
         public int Id { get; }
         /// <summary>
+        /// Whether this listener can handle data
+        /// </summary>
+        public bool CanHandleData { get; }
+        /// <summary>
         /// The identifiers for this processor
         /// </summary>
         public HashSet<string> ListenerIdentifiers { get; }
@@ -27,7 +30,7 @@ namespace CryptoExchange.Net.Interfaces
         /// <param name="connection"></param>
         /// <param name="message"></param>
         /// <returns></returns>
-        Task<CallResult> HandleAsync(SocketConnection connection, DataEvent<object> message);
+        CallResult Handle(SocketConnection connection, DataEvent<object> message);
         /// <summary>
         /// Get the type the message should be deserialized to
         /// </summary>
@@ -40,6 +43,6 @@ namespace CryptoExchange.Net.Interfaces
         /// <param name="accessor"></param>
         /// <param name="type"></param>
         /// <returns></returns>
-        object Deserialize(IMessageAccessor accessor, Type type);
+        CallResult<object> Deserialize(IMessageAccessor accessor, Type type);
     }
 }

CryptoExchange.Net/Interfaces/IMessageSerializer.cs

@@ -0,0 +1,15 @@
+namespace CryptoExchange.Net.Interfaces
+{
+    /// <summary>
+    /// Serializer interface
+    /// </summary>
+    public interface IMessageSerializer
+    {
+        /// <summary>
+        /// Serialize an object to a string
+        /// </summary>
+        /// <param name="message"></param>
+        /// <returns></returns>
+        string Serialize(object message);
+    }
+}

CryptoExchange.Net/Interfaces/IRestClient.cs

@@ -17,5 +17,10 @@ namespace CryptoExchange.Net.Interfaces
         /// The total amount of requests made with this client
         /// </summary>
         int TotalRequestsMade { get; }
+
+        /// <summary>
+        /// The exchange name
+        /// </summary>
+        string Exchange { get; }
     }
 }

CryptoExchange.Net/Interfaces/ISocketApiClient.cs

@@ -36,7 +36,7 @@ namespace CryptoExchange.Net.Interfaces
         /// <summary>
         /// Log the current state of connections and subscriptions
         /// </summary>
-        string GetSubscriptionsState();
+        string GetSubscriptionsState(bool includeSubDetails = true);
         /// <summary>
         /// Reconnect all connections
         /// </summary>

CryptoExchange.Net/Interfaces/IWebsocket.cs

@@ -17,7 +17,7 @@ namespace CryptoExchange.Net.Interfaces
         /// <summary>
         /// Websocket message received event
         /// </summary>
-        event Func<WebSocketMessageType, Stream, Task> OnStreamMessage;
+        event Action<WebSocketMessageType, ReadOnlyMemory<byte>> OnStreamMessage;
         /// <summary>
         /// Websocket sent event, RequestId as parameter
         /// </summary>