Trace Api Requests

EosSharp/EosSharp.Core/Api/v1/TraceApi.cs

@@ -0,0 +1,36 @@
+using EosSharp.Core;
+using EosSharp.Core.Api.v1;
+using EosSharp.Core.Api.v1.Trace;
+using EosSharp.Core.Interfaces;
+using System.Collections.Generic;
+using System.Threading.Tasks;
+
+namespace EosSharp.Core.Api.v1
+{
+	/// <summary>
+    /// TraceApi defines api methods for Trace Api Plug-In
+    /// </summary>
+    public class TraceApi
+    { 
+        public EosConfigurator Config { get; set; }
+        public IHttpHandler HttpHandler { get; set; }
+
+		/// <summary>
+        /// Eos Client Trace Api constructor.
+        /// </summary>
+        /// <param name="config">Configures client parameters</param>
+        /// <param name="httpHandler">Http handler implementation</param>
+        public TraceApi(EosConfigurator config, IHttpHandler httpHandler)
+        {
+           Config = config;
+           HttpHandler = httpHandler;
+        }
+
+        private string MethodUrl(string methodName) => $"{Config.HttpEndpoint}/v1/trace_api/{methodName}";
+
+		public async Task<GetBlockTraceResponse> GetBlockTrace(GetBlockTraceRequest data)
+        {
+            return await HttpHandler.PostJsonAsync<GetBlockTraceResponse>(MethodUrl("get_block"), data);
+        }
+    }
+}

EosSharp/EosSharp.Core/Api/v1/TraceApiTypes.cs

@@ -0,0 +1,64 @@
+using System;
+using System.Collections.Generic;
+
+namespace EosSharp.Core.Api.v1.Trace
+{
+	#region trace api types
+	[Serializable]
+    public class GetBlockTraceRequest
+    {
+		public string block_num;
+    }
+
+    public static class BlockStatuses 
+    {
+        public const string Irreversible = "irreversible";
+    }
+
+	[Serializable]
+    public class GetBlockTraceResponse
+    {
+		public string id { get; set; }
+		public UInt32 number { get; set; }
+		public string previous_id { get; set; }
+		public string status { get; set; }
+		public DateTime timestamp { get; set; }
+		public string producer { get; set; }
+		public List<Transaction> transactions { get; set; }
+	}	
+
+    [Serializable]
+    public class Transaction
+    {
+        public string id { get; set; }
+        public List<Action> actions { get; set; }
+    }
+
+    [Serializable]
+    public class Action
+    {
+        public string receiver { get; set; }
+        public string account { get; set; }
+        public string action { get; set; }
+        public List<Authorization> authorization { get; set; }
+        public string data { get; set; }
+        public Params @params { get; set; }
+    }
+
+    [Serializable]
+    public class Authorization
+    {
+        public string account { get; set; }
+        public string permission { get; set; }
+    }
+
+    [Serializable]
+    public class Params
+    {
+        public string from { get; set; }
+        public string to { get; set; }
+        public string quantity { get; set; }
+        public string memo { get; set; }
+    }
+	#endregion
+}

EosSharp/EosSharp.Core/EosBase.cs

@@ -17,6 +17,7 @@ public class EosBase
     {
         private EosConfigurator EosConfig { get; set; }
         private EosApi Api { get; set; }
+        private TraceApi TraceApi { get; set; }
         private AbiSerializationProvider AbiSerializer { get; set; }
 
         /// <summary>
@@ -32,6 +33,7 @@ public EosBase(EosConfigurator config, IHttpHandler httpHandler)
                 throw new ArgumentNullException("config");
             }
             Api = new EosApi(EosConfig, httpHandler);
+            TraceApi = new TraceApi(EosConfig, httpHandler);
             AbiSerializer = new AbiSerializationProvider(Api);
         }
 
@@ -544,5 +546,20 @@ public async Task<List<string>> GetControlledAccounts(string accountName)
         }
 
         #endregion
+
+        #region Trace Api Methods
+        /// <summary>
+        /// Query for blockchain block information with Trace Api
+        /// </summary>
+        /// <param name="blockNum">block number to query information</param>
+        /// <returns>block information</returns>
+        public Task<Api.v1.Trace.GetBlockTraceResponse> GetBlockTrace(UInt32 blockNum)
+        {
+            return TraceApi.GetBlockTrace(new Api.v1.Trace.GetBlockTraceRequest()
+            {
+                block_num = blockNum.ToString()
+            });
+        }
+        #endregion    
     }
 }

EosSharp/EosSharp.Core/Exceptions/ApiErrorException.cs

@@ -47,7 +47,7 @@ public override void GetObjectData(SerializationInfo info, StreamingContext cont
     [Serializable]
     public class ApiError
     {
-        public int code;
+        public ulong code;
         public string name;
         public string what;
         public List<ApiErrorDetail> details;

EosSharp/EosSharp/HttpHelper.cs

@@ -206,28 +206,69 @@ public string GetRequestHashKey(string url, object data)
         /// <returns>Stream with response</returns>
         public async Task<Stream> BuildSendResponse(HttpResponseMessage response)
         {
-            var stream = await response.Content.ReadAsStreamAsync();
+            if(response == null)
+            {
+                throw new ApplicationException("Respionse is null!");    
+            }
 
-            if (response.IsSuccessStatusCode)
-                return stream;
+            if(response.Content == null)
+            {
+                throw new ApiException
+                {
+                    StatusCode = (int)response.StatusCode,
+                    Content = "Content is null"
+                };
+            }
 
-            var content = await StreamToStringAsync(stream);
+            var stream = await response.Content.ReadAsStreamAsync();
+            if (response.IsSuccessStatusCode) return stream;
 
-            ApiErrorException apiError = null;
+            string content = null;
             try
             {
-                apiError = JsonConvert.DeserializeObject<ApiErrorException>(content);
+                content = await StreamToStringAsync(stream);
+            }
+            catch (System.Exception ex)
+            {
+                throw new ApiException
+                {
+                    StatusCode = (int)response.StatusCode,
+                    Content = $"Couldn't parse stream data. exception: {ex.ToString()}"
+                };
             }
-            catch(Exception)
+
+            if(string.IsNullOrEmpty(content)) 
             {
                 throw new ApiException
                 {
                     StatusCode = (int)response.StatusCode,
-                    Content = content
+                    Content = $"Couldn't parse stream data."
                 };
             }
 
-            throw apiError;
+            try
+            {
+                ApiErrorException apiError = JsonConvert.DeserializeObject<ApiErrorException>(content);
+
+                if(apiError == null) 
+                {
+                    throw new ApiException
+                    {
+                        StatusCode = (int)response.StatusCode,
+                        Content = $"Api error is null! Status code: {response.StatusCode}, content: {content}"
+                    };
+                }
+
+                throw apiError;
+            }
+            catch(Exception ex)
+            {
+                throw new ApiException
+                {
+                    StatusCode = (int)response.StatusCode,
+                    Content = $"Couldn't deserialized api error, exception: {ex.ToString()}, content: {content}"
+                };
+            }
         }
 
         /// <summary>