diff --git a/modules/swagger-codegen/src/main/java/io/swagger/codegen/languages/NancyFXServerCodegen.java b/modules/swagger-codegen/src/main/java/io/swagger/codegen/languages/NancyFXServerCodegen.java
index 029f46ed1b5..a6a021407a4 100644
--- a/modules/swagger-codegen/src/main/java/io/swagger/codegen/languages/NancyFXServerCodegen.java
+++ b/modules/swagger-codegen/src/main/java/io/swagger/codegen/languages/NancyFXServerCodegen.java
@@ -122,6 +122,6 @@ public class NancyFXServerCodegen extends AbstractCSharpCodegen {
         }
 
         // Converts, for example, PUT to HttpPut for controller attributes
-        operation.httpMethod = "Http" + operation.httpMethod.substring(0, 1) + operation.httpMethod.substring(1).toLowerCase();
+        operation.httpMethod = operation.httpMethod.substring(0, 1) + operation.httpMethod.substring(1).toLowerCase();
     }
 }
diff --git a/modules/swagger-codegen/src/main/resources/nancyfx/api.mustache b/modules/swagger-codegen/src/main/resources/nancyfx/api.mustache
index e9c5c919898..d29b750c9e5 100644
--- a/modules/swagger-codegen/src/main/resources/nancyfx/api.mustache
+++ b/modules/swagger-codegen/src/main/resources/nancyfx/api.mustache
@@ -1,45 +1,44 @@
 using System;
-using System.Collections.Generic;
-using System.Collections.ObjectModel;
-using System.ComponentModel;
 using System.IO;
-using System.Linq;
-using System.Net;
-using System.Threading.Tasks;
-using Microsoft.AspNet.Mvc;
-using Newtonsoft.Json;
-using Swashbuckle.SwaggerGen.Annotations;
+using Nancy;
 using {{packageName}}.Models;
 
-namespace {{packageName}}.Controllers
+namespace {{packageName}}.Api
 { {{#operations}}
-    /// <summary>
-    /// {{description}}
-    /// </summary>{{#description}}{{#basePath}}
-    [Route("{{basePath}}")]
-    {{/basePath}}[Description("{{description}}")]{{/description}}
-    public class {{classname}}Controller : Controller
-    { {{#operation}}
 
-        /// <summary>
-        /// {{#summary}}{{summary}}{{/summary}}
-        /// </summary>
-        {{#notes}}/// <remarks>{{notes}}</remarks>{{/notes}}{{#allParams}}
-        /// <param name="{{paramName}}">{{description}}</param>{{/allParams}}{{#responses}}
-        /// <response code="{{code}}">{{message}}</response>{{/responses}}
-        [{{httpMethod}}]
-        [Route("{{path}}")]
-        [SwaggerOperation("{{operationId}}")]{{#returnType}}
-        [SwaggerResponse(200, type: typeof({{&returnType}}))]{{/returnType}}
-        public {{#returnType}}IActionResult{{/returnType}}{{^returnType}}void{{/returnType}} {{operationId}}({{#allParams}}{{>pathParam}}{{>queryParam}}{{>bodyParam}}{{>formParam}}{{>headerParam}}{{#hasMore}}, {{/hasMore}}{{/allParams}})
-        { {{#returnType}}
-            string exampleJson = null;
-            {{#isListCollection}}{{>listReturn}}{{/isListCollection}}{{^isListCollection}}{{#isMapContainer}}{{>mapReturn}}{{/isMapContainer}}{{^isMapContainer}}{{>objectReturn}}{{/isMapContainer}}{{/isListCollection}}
-            {{!TODO: defaultResponse, examples, auth, consumes, produces, nickname, externalDocs, imports, security}}
-            return new ObjectResult(example);{{/returnType}}{{^returnType}}
-            throw new NotImplementedException();{{/returnType}}
+    public sealed class {{classname}}Module : NancyModule
+    {
+        public {{classname}}Module({{classname}}Service service) : base("")
+        { {{#operation}}
+            {{httpMethod}}["{{path}}"] = parameters =>
+            {
+                // existence validation of obligatory parameters
+                {{#allParams}}{{#required}}
+                if (parameters.{{paramName}} == null) {
+                    throw new ApiException(400, "Missing the required parameter '{{paramName}}' when calling {{operationId}}");
+                }
+                {{/required}}{{/allParams}}
+                {{#allParams}}{{#isBodyParam}}
+                {{&dataType}} {{paramName}} = Bind<{{&dataType}}>();
+                {{/isBodyParam}}{{#isPathParam}}{{&dataType}} {{paramName}} = parameters.{{paramName}};
+                {{/isPathParam}}{{#isHeaderParam}}{{&dataType}} {{paramName}} = parameters.{{paramName}};
+                {{/isHeaderParam}}{{#isQueryParam}}{{&dataType}} {{paramName}} = parameters.{{paramName}};
+                {{/isQueryParam}}{{/allParams}}
+                return service.{{operationId}}(
+                {{#allParams}}
+                    {{paramName}}{{#hasMore}},{{/hasMore}}
+                {{/allParams}}
+                );
+            };
+{{/operation}}
         }
+    }
+
+    interface {{classname}}Service
+    { {{#operation}}
+        public {{#returnType}}{{&returnType}}{{/returnType}}{{^returnType}}void{{/returnType}} {{operationId}}({{#allParams}}{{>pathParam}}{{>queryParam}}{{>bodyParam}}{{>formParam}}{{>headerParam}}{{#hasMore}}, {{/hasMore}}{{/allParams}});
 {{/operation}}
     }
+
 {{/operations}}
 }
diff --git a/modules/swagger-codegen/src/main/resources/nancyfx/bodyParam.mustache b/modules/swagger-codegen/src/main/resources/nancyfx/bodyParam.mustache
index 02b0fa1d2de..0d354f2365e 100644
--- a/modules/swagger-codegen/src/main/resources/nancyfx/bodyParam.mustache
+++ b/modules/swagger-codegen/src/main/resources/nancyfx/bodyParam.mustache
@@ -1 +1 @@
-{{#isBodyParam}}[FromBody]{{&dataType}} {{paramName}}{{/isBodyParam}}
\ No newline at end of file
+{{#isBodyParam}}{{&dataType}} {{paramName}}{{/isBodyParam}}
\ No newline at end of file
diff --git a/modules/swagger-codegen/src/main/resources/nancyfx/formParam.mustache b/modules/swagger-codegen/src/main/resources/nancyfx/formParam.mustache
index 1e743e1e4c7..1a15c1d7639 100644
--- a/modules/swagger-codegen/src/main/resources/nancyfx/formParam.mustache
+++ b/modules/swagger-codegen/src/main/resources/nancyfx/formParam.mustache
@@ -1 +1 @@
-{{#isFormParam}}[FromForm]{{&dataType}} {{paramName}}{{/isFormParam}}
\ No newline at end of file
+{{#isFormParam}}{{&dataType}} {{paramName}}{{/isFormParam}}
\ No newline at end of file
diff --git a/modules/swagger-codegen/src/main/resources/nancyfx/headerParam.mustache b/modules/swagger-codegen/src/main/resources/nancyfx/headerParam.mustache
index e61cadb1131..86bb6608230 100644
--- a/modules/swagger-codegen/src/main/resources/nancyfx/headerParam.mustache
+++ b/modules/swagger-codegen/src/main/resources/nancyfx/headerParam.mustache
@@ -1 +1 @@
-{{#isHeaderParam}}[FromHeader]{{&dataType}} {{paramName}}{{/isHeaderParam}}
\ No newline at end of file
+{{#isHeaderParam}}{{&dataType}} {{paramName}}{{/isHeaderParam}}
\ No newline at end of file
diff --git a/modules/swagger-codegen/src/main/resources/nancyfx/model.mustache b/modules/swagger-codegen/src/main/resources/nancyfx/model.mustache
index 08aaed01f3d..7df65b03b41 100644
--- a/modules/swagger-codegen/src/main/resources/nancyfx/model.mustache
+++ b/modules/swagger-codegen/src/main/resources/nancyfx/model.mustache
@@ -69,15 +69,6 @@ namespace {{packageName}}.Models
             return sb.ToString();
         }
 
-        /// <summary>
-        /// Returns the JSON string presentation of the object
-        /// </summary>
-        /// <returns>JSON string presentation of the object</returns>
-        public {{#parent}} new {{/parent}}string ToJson()
-        {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
-        }
-
         /// <summary>
         /// Returns true if objects are equal
         /// </summary>
diff --git a/modules/swagger-codegen/src/main/resources/nancyfx/pathParam.mustache b/modules/swagger-codegen/src/main/resources/nancyfx/pathParam.mustache
index 5aa27eb4cb3..5139812e1ef 100644
--- a/modules/swagger-codegen/src/main/resources/nancyfx/pathParam.mustache
+++ b/modules/swagger-codegen/src/main/resources/nancyfx/pathParam.mustache
@@ -1 +1 @@
-{{#isPathParam}}[FromRoute]{{&dataType}} {{paramName}}{{/isPathParam}}
\ No newline at end of file
+{{#isPathParam}}{{&dataType}} {{paramName}}{{/isPathParam}}
\ No newline at end of file
diff --git a/modules/swagger-codegen/src/main/resources/nancyfx/queryParam.mustache b/modules/swagger-codegen/src/main/resources/nancyfx/queryParam.mustache
index 42ce87a2b7f..8af670122a8 100644
--- a/modules/swagger-codegen/src/main/resources/nancyfx/queryParam.mustache
+++ b/modules/swagger-codegen/src/main/resources/nancyfx/queryParam.mustache
@@ -1 +1 @@
-{{#isQueryParam}}[FromQuery]{{&dataType}} {{paramName}}{{/isQueryParam}}
\ No newline at end of file
+{{#isQueryParam}}{{&dataType}} {{paramName}}{{/isQueryParam}}
\ No newline at end of file