make it arrow (#133)

* make it arrow

* another try

* empty lines

src/EthSmartContractIO/ContractIO/ContractReader.cs

@@ -9,53 +9,37 @@ namespace EthSmartContractIO.ContractIO;
 /// </summary>
 public class ContractReader : IContractIO
 {
+    private const string resultName = "result";
     private readonly RpcRequest request;
 
     /// <summary>
     /// Initializes a new instance of the <see cref="ContractReader"/> class.
     /// </summary>
     /// <param name="request">The <see cref="RpcRequest"/> to execute.</param>
-    public ContractReader(RpcRequest request)
-    {
-        this.request = request;
-    }
+    public ContractReader(RpcRequest request) => this.request = request;
 
     /// <summary>
     /// Executes a read action on the Ethereum network.
     /// </summary>
     /// <returns>The result of the action.</returns>
     /// <exception cref="FlurlHttpException">Thrown when the HTTP request fails.</exception>
     /// <exception cref="KeyNotFoundException">Thrown when the response does not contain the key 'result'.</exception>
-    public virtual string RunContractAction()
-    {
-        var input = CreateActionInput();
-
-        var response = request.RpcUrl.PostJsonAsync(input)
-            .GetAwaiter()
-            .GetResult();
-
-        return ParseResponse(response);
-    }
+    public virtual string RunContractAction() =>
+        PostRequest().TryGetValue(resultName, out var result)
+            ? result.ToString()
+            : throw new KeyNotFoundException("Response does not contain the key 'result'.");
 
     /// <summary>
     /// Creates the input for the read action.
     /// </summary>
     /// <returns>The created <see cref="ReadRpcRequest"/>.</returns>
-    private ReadRpcRequest CreateActionInput() =>
+    private ReadRpcRequest CreateActionInput =>
         new(request.To, request.Data);
 
     /// <summary>
-    /// Parses the response from the Ethereum network.
+    /// Sends the HTTP request to the Ethereum network.
     /// </summary>
-    /// <param name="flurlResponse">The response to parse.</param>
-    /// <returns>The parsed response.</returns>
-    /// <exception cref="KeyNotFoundException">Thrown when the response does not contain the key 'result'.</exception>
-    private static string ParseResponse(IFlurlResponse flurlResponse)
-    {
-        var response = flurlResponse.GetJsonAsync<JObject>()
-            .GetAwaiter()
-            .GetResult();
-
-        return response["result"]?.ToString() ?? throw new KeyNotFoundException("Response does not contain the key 'result'.");
-    }
+    /// <returns></returns>
+    private JObject PostRequest() =>
+        Task.Run(() => request.RpcUrl.PostJsonAsync(CreateActionInput).ReceiveJson<JObject>()).Result;
 }