diff --git a/src/Mockaco/Middlewares/CallbackMiddleware.cs b/src/Mockaco/Middlewares/CallbackMiddleware.cs
index 55a7bda..47362af 100644
--- a/src/Mockaco/Middlewares/CallbackMiddleware.cs
+++ b/src/Mockaco/Middlewares/CallbackMiddleware.cs
@@ -2,6 +2,7 @@
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Logging;
 using Mockaco.Processors;
+using Newtonsoft.Json;
 using System;
 using System.Diagnostics;
 using System.Linq;
@@ -79,11 +80,13 @@ private static HttpRequestMessage PrepareHttpRequest(CallbackTemplate callbackTe
         {
             var request = new HttpRequestMessage(new HttpMethod(callbackTemplate.Method), callbackTemplate.Url);
 
+            var formatting = callbackTemplate.Indented.GetValueOrDefault() ? Formatting.Indented : default;
+
             if (callbackTemplate.Body != null)
             {
                 request.Content = callbackTemplate.Headers.ContainsKey("Content-Type")
                     ? new StringContent(callbackTemplate.Body.ToString(), Encoding.UTF8, callbackTemplate.Headers["Content-Type"])
-                    : new StringContent(callbackTemplate.Body.ToString());
+                    : new StringContent(callbackTemplate.Body.ToString(formatting));
             }
 
             PrepareHeaders(callbackTemplate, request);
diff --git a/src/Mockaco/Middlewares/RequestMatchingMiddleware.cs b/src/Mockaco/Middlewares/RequestMatchingMiddleware.cs
index 79d9b4a..269f64a 100644
--- a/src/Mockaco/Middlewares/RequestMatchingMiddleware.cs
+++ b/src/Mockaco/Middlewares/RequestMatchingMiddleware.cs
@@ -10,7 +10,7 @@ namespace Mockaco.Middlewares
     public class RequestMatchingMiddleware
     {
         private readonly RequestDelegate _next;
-
+                
         public RequestMatchingMiddleware(RequestDelegate next)
         {
             _next = next;
diff --git a/src/Mockaco/Models/CallbackTemplate.cs b/src/Mockaco/Models/CallbackTemplate.cs
index 0449d9e..0c183b2 100644
--- a/src/Mockaco/Models/CallbackTemplate.cs
+++ b/src/Mockaco/Models/CallbackTemplate.cs
@@ -7,8 +7,6 @@ namespace Mockaco
 {
     public class CallbackTemplate
     {
-        public bool? Condition { get; set; }
-
         public string Method { get; set; }
 
         public string Url { get; set; }
@@ -17,8 +15,10 @@ public class CallbackTemplate
 
         public int? Timeout { get; set; }
 
+        public bool? Indented { get; set; }
+
         public IDictionary<string, string> Headers { get; set; }
 
-        public JContainer Body { get; set; }
+        public JToken Body { get; set; }
     }
 }
\ No newline at end of file
diff --git a/src/Mockaco/Models/ResponseTemplate.cs b/src/Mockaco/Models/ResponseTemplate.cs
index 303c3d2..301d87f 100644
--- a/src/Mockaco/Models/ResponseTemplate.cs
+++ b/src/Mockaco/Models/ResponseTemplate.cs
@@ -1,12 +1,15 @@
-using Newtonsoft.Json.Linq;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Linq;
 using System.Collections.Generic;
 using System.Net;
 
 namespace Mockaco
 {
     public class ResponseTemplate
-    {        
-        public int? Delay { get; set; }        
+    {
+        public int? Delay { get; set; }
+
+        public bool? Indented { get; set; }
 
         public HttpStatusCode Status { get; set; }
 
diff --git a/src/Mockaco/Templating/TemplateResponseProcessor.cs b/src/Mockaco/Templating/TemplateResponseProcessor.cs
index c34a5b4..c183c0f 100644
--- a/src/Mockaco/Templating/TemplateResponseProcessor.cs
+++ b/src/Mockaco/Templating/TemplateResponseProcessor.cs
@@ -1,7 +1,5 @@
 using Microsoft.AspNetCore.Http;
-using Microsoft.Extensions.Logging;
 using Newtonsoft.Json;
-using System.Globalization;
 using System.Net;
 using System.Threading.Tasks;
 
@@ -9,33 +7,24 @@ namespace Mockaco
 {
     public class TemplateResponseProcessor : ITemplateResponseProcessor
     {
-        private readonly ILogger<TemplateResponseProcessor> _logger;
-
-        public TemplateResponseProcessor(
-            IMockacoContext mockacoContext,
-            ILogger<TemplateResponseProcessor> logger)
-        {
-            _logger = logger;
-        }
-
         public async Task PrepareResponse(HttpResponse httpResponse, IScriptContext scriptContext, Template template)
         {
-            httpResponse.StatusCode = template.Response.Status == 0
+            httpResponse.StatusCode = template.Response.Status == default
                 ? (int)HttpStatusCode.OK
                 : (int)template.Response.Status;
 
-            WriteResponseHeaders(httpResponse, template);
+            WriteResponseHeaders(httpResponse, template.Response);
 
-            await WriteResponseBody(httpResponse, template);
+            await WriteResponseBody(httpResponse, template.Response);
 
             scriptContext.AttachResponse(httpResponse.Headers, template.Response.Body);
         }
 
-        private void WriteResponseHeaders(HttpResponse response, Template template)
+        private void WriteResponseHeaders(HttpResponse response, ResponseTemplate responseTemplate)
         {
-            if (template.Response.Headers != null)
+            if (responseTemplate.Headers != null)
             {
-                foreach (var header in template.Response.Headers)
+                foreach (var header in responseTemplate.Headers)
                 {
                     response.Headers.Add(header.Key, header.Value);
                 }
@@ -47,9 +36,11 @@ private void WriteResponseHeaders(HttpResponse response, Template template)
             }
         }
 
-        private async Task WriteResponseBody(HttpResponse response, Template template)
+        private async Task WriteResponseBody(HttpResponse response, ResponseTemplate responseTemplate)
         {
-            var responseBody = template.Response.Body?.ToString();
+            var formatting = responseTemplate.Indented.GetValueOrDefault() ? Formatting.Indented : default;
+
+            var responseBody = responseTemplate.Body?.ToString(formatting);
 
             if (response.ContentType != "application/json")
             {
@@ -58,10 +49,8 @@ private async Task WriteResponseBody(HttpResponse response, Template template)
 
             if (responseBody != null)
             {
-                await response.WriteAsync(responseBody)
-                    .ConfigureAwait(false);
+                await response.WriteAsync(responseBody);
             }
         }
-
     }
 }
\ No newline at end of file
diff --git a/src/Mockaco/Templating/TemplateTransformer.cs b/src/Mockaco/Templating/TemplateTransformer.cs
index 4a60b2a..ad6e84e 100644
--- a/src/Mockaco/Templating/TemplateTransformer.cs
+++ b/src/Mockaco/Templating/TemplateTransformer.cs
@@ -81,8 +81,7 @@ private async Task<string> Transform(string input, IScriptContext scriptContext)
 
             return output.ToString();
         }
-
-        // TODO Remove repeated code
+                
         private async Task<object> Run(string code, IScriptContext scriptContext)
         {
             object result = null;
@@ -91,11 +90,11 @@ private async Task<object> Run(string code, IScriptContext scriptContext)
             {
                 result = await _scriptRunnerFactory.Invoke<IScriptContext, object>(scriptContext, code);
 
-                _logger.LogDebug($"Processed script {code} with result {result}");
+                _logger.LogDebug("Processed script {code} with result {result}", code, result);
             }
             catch (Exception ex)
             {
-                _logger.LogError($"Processed script {code} with result {ex}");
+                _logger.LogError(ex, "Processed script {code} with error", code);
             }
 
             return result;