Example: Use http handler for writing to the console

Author: bkoelman

src/Examples/JsonApiDotNetCoreExampleClient/ColoredConsoleLogDelegatingHandler.cs

@@ -0,0 +1,62 @@
+using JetBrains.Annotations;
+
+namespace JsonApiDotNetCoreExampleClient;
+
+/// <summary>
+/// Writes incoming and outgoing HTTP messages to the console.
+/// </summary>
+[UsedImplicitly]
+internal sealed class ColoredConsoleLogDelegatingHandler : DelegatingHandler
+{
+    protected override async Task<HttpResponseMessage> SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)
+    {
+        await LogRequestAsync(request, cancellationToken);
+
+        HttpResponseMessage response = await base.SendAsync(request, cancellationToken);
+
+        await LogResponseAsync(response, cancellationToken);
+
+        return response;
+    }
+
+    private static async Task LogRequestAsync(HttpRequestMessage request, CancellationToken cancellationToken)
+    {
+        using var _ = new ConsoleColorScope(ConsoleColor.Green);
+
+        Console.WriteLine($"--> {request}");
+        string? requestBody = request.Content != null ? await request.Content.ReadAsStringAsync(cancellationToken) : null;
+
+        if (!string.IsNullOrEmpty(requestBody))
+        {
+            Console.WriteLine();
+            Console.WriteLine(requestBody);
+        }
+    }
+
+    private static async Task LogResponseAsync(HttpResponseMessage response, CancellationToken cancellationToken)
+    {
+        using var _ = new ConsoleColorScope(ConsoleColor.Cyan);
+
+        Console.WriteLine($"<-- {response}");
+        string responseBody = await response.Content.ReadAsStringAsync(cancellationToken);
+
+        if (!string.IsNullOrEmpty(responseBody))
+        {
+            Console.WriteLine();
+            Console.WriteLine(responseBody);
+        }
+    }
+
+    private sealed class ConsoleColorScope : IDisposable
+    {
+        public ConsoleColorScope(ConsoleColor foregroundColor)
+        {
+            Console.ForegroundColor = foregroundColor;
+        }
+
+        public void Dispose()
+        {
+            Console.ResetColor();
+        }
+    }
+}

src/Examples/JsonApiDotNetCoreExampleClient/ExampleApiClient.cs

@@ -2,8 +2,6 @@
 using JsonApiDotNetCore.OpenApi.Client;
 using Newtonsoft.Json;
 
-// ReSharper disable UnusedParameterInPartialMethod
-
 namespace JsonApiDotNetCoreExampleClient;
 
 [UsedImplicitly(ImplicitUseTargetFlags.Itself)]
@@ -13,50 +11,8 @@ partial void UpdateJsonSerializerSettings(JsonSerializerSettings settings)
     {
         SetSerializerSettingsForJsonApi(settings);
 
-        // Optional: Makes the JSON easier to read when logged.
+#if DEBUG
         settings.Formatting = Formatting.Indented;
-    }
-
-    // Optional: Log outgoing request to the console.
-    partial void PrepareRequest(HttpClient client, HttpRequestMessage request, string url)
-    {
-        using var _ = new UsingConsoleColor(ConsoleColor.Green);
-
-        Console.WriteLine($"--> {request}");
-        string? requestBody = request.Content?.ReadAsStringAsync().GetAwaiter().GetResult();
-
-        if (!string.IsNullOrEmpty(requestBody))
-        {
-            Console.WriteLine();
-            Console.WriteLine(requestBody);
-        }
-    }
-
-    // Optional: Log incoming response to the console.
-    partial void ProcessResponse(HttpClient client, HttpResponseMessage response)
-    {
-        using var _ = new UsingConsoleColor(ConsoleColor.Cyan);
-
-        Console.WriteLine($"<-- {response}");
-        string responseBody = response.Content.ReadAsStringAsync().GetAwaiter().GetResult();
-
-        if (!string.IsNullOrEmpty(responseBody))
-        {
-            Console.WriteLine();
-            Console.WriteLine(responseBody);
-        }
-    }
-
-    private sealed class UsingConsoleColor : IDisposable
-    {
-        public UsingConsoleColor(ConsoleColor foregroundColor)
-        {
-            Console.ForegroundColor = foregroundColor;
-        }
-
-        public void Dispose()
-        {
-            Console.ResetColor();
-        }
+#endif
     }
 }

src/Examples/JsonApiDotNetCoreExampleClient/Program.cs

@@ -1,6 +1,10 @@
 using JsonApiDotNetCoreExampleClient;
 
-using var httpClient = new HttpClient();
+using var httpClient = new HttpClient(new ColoredConsoleLogDelegatingHandler
+{
+    InnerHandler = new HttpClientHandler()
+});
+
 var apiClient = new ExampleApiClient(httpClient);
 
 PersonCollectionResponseDocument getResponse = await apiClient.GetPersonCollectionAsync(new Dictionary<string, string?>