Проект с Nancy

Rest/Program.cs

+using System;
+using System.Text;
+using System.Threading.Tasks;
+using Nancy;
+using Nancy.ErrorHandling;
+using Nancy.Hosting.Self;
+
+namespace Rest {
+    internal class Program {
+        public static void Main(string[] args){
+            var hostConfigs = new HostConfiguration{
+                UrlReservations = new UrlReservations{ CreateAutomatically = true }
+            };
+            // initialize an instance of NancyHost (found in the Nancy.Hosting.Self package)
+            var host = new NancyHost(hostConfigs,new Uri("http://localhost:12345"));    
+            host.Start(); // start hosting
+
+            Console.ReadKey();    
+            host.Stop(); // stop hosting
+        }
+    }
+    
+    public class Module : NancyModule
+    {
+        public Module()
+        {
+            Get("/greet/{name}", x => {
+                return string.Concat("Hello ", x.name);
+            });
+            
+            Get("/async", async _ => {
+                await Task.Delay(TimeSpan.FromSeconds(3));
+                return "Done";
+            });
+        }
+    }
+    
+    // Кастомное 404 
+    public class StatusCodeHandler : IStatusCodeHandler  
+    {  
+        private readonly IRootPathProvider _rootPathProvider;  
+  
+        public StatusCodeHandler(IRootPathProvider rootPathProvider)  
+        {  
+            _rootPathProvider = rootPathProvider;  
+        }  
+  
+        // The HandleStatusCode() method checks if status code is HttpStatusCode.NotFound. Returning true tells Nancy that our StatusCodeHandler will handle the response to this status code.
+        public bool HandlesStatusCode(HttpStatusCode statusCode, NancyContext context)  
+        {  
+            return statusCode == HttpStatusCode.NotFound;  
+        }  
+  
+        public void Handle(HttpStatusCode statusCode, NancyContext context)  
+        {  
+            var response = (Response)@"{""message"": ""404 :(""}";
+
+            response.ContentType = "application/json";
+
+            context.Response =  response;
+        }  
+    }
+}
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Rest/Properties/AssemblyInfo.cs

+using System.Reflection;
+using System.Runtime.InteropServices;
+
+// General Information about an assembly is controlled through the following 
+// set of attributes. Change these attribute values to modify the information
+// associated with an assembly.
+[assembly: AssemblyTitle("Rest")]
+[assembly: AssemblyDescription("")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("")]
+[assembly: AssemblyProduct("Rest")]
+[assembly: AssemblyCopyright("Copyright ©  2018")]
+[assembly: AssemblyTrademark("")]
+[assembly: AssemblyCulture("")]
+
+// Setting ComVisible to false makes the types in this assembly not visible 
+// to COM components.  If you need to access a type in this assembly from 
+// COM, set the ComVisible attribute to true on that type.
+[assembly: ComVisible(false)]
+
+// The following GUID is for the ID of the typelib if this project is exposed to COM
+[assembly: Guid("6708BCDF-A4C5-4D48-95A4-5C51B4C140B9")]
+
+// Version information for an assembly consists of the following four values:
+//
+//      Major Version
+//      Minor Version 
+//      Build Number
+//      Revision
+//
+// You can specify all the values or you can default the Build and Revision Numbers 
+// by using the '*' as shown below:
+// [assembly: AssemblyVersion("1.0.*")]
+[assembly: AssemblyVersion("1.0.0.0")]
+[assembly: AssemblyFileVersion("1.0.0.0")]
\ No newline at end of file

Rest/Rest.csproj

+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+    <ProjectGuid>{6708BCDF-A4C5-4D48-95A4-5C51B4C140B9}</ProjectGuid>
+    <OutputType>Exe</OutputType>
+    <AppDesignerFolder>Properties</AppDesignerFolder>
+    <RootNamespace>Rest</RootNamespace>
+    <AssemblyName>Rest</AssemblyName>
+    <TargetFrameworkVersion>v4.5.2</TargetFrameworkVersion>
+    <FileAlignment>512</FileAlignment>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <DebugSymbols>true</DebugSymbols>
+    <DebugType>full</DebugType>
+    <Optimize>false</Optimize>
+    <OutputPath>bin\Debug\</OutputPath>
+    <DefineConstants>DEBUG;TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <DebugType>pdbonly</DebugType>
+    <Optimize>true</Optimize>
+    <OutputPath>bin\Release\</OutputPath>
+    <DefineConstants>TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <ItemGroup>
+    <Reference Include="Microsoft.CSharp" />
+    <Reference Include="Nancy, Version=2.0.0.0, Culture=neutral, PublicKeyToken=null">
+      <HintPath>..\packages\Nancy.2.0.0-clinteastwood\lib\net452\Nancy.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
+    <Reference Include="Nancy.Hosting.Self, Version=2.0.0.0, Culture=neutral, PublicKeyToken=null">
+      <HintPath>..\packages\Nancy.Hosting.Self.2.0.0-clinteastwood\lib\net452\Nancy.Hosting.Self.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
+    <Reference Include="System" />
+    <Reference Include="System.Core" />
+    <Reference Include="System.Data" />
+    <Reference Include="System.Xml" />
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="Program.cs" />
+    <Compile Include="Properties\AssemblyInfo.cs" />
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="packages.config" />
+  </ItemGroup>
+  <ItemGroup>
+    <Analyzer Include="..\packages\AsyncUsageAnalyzers.1.0.0-alpha003\analyzers\dotnet\AsyncUsageAnalyzers.dll" />
+  </ItemGroup>
+  <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
+  <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
+         Other similar extension points exist, see Microsoft.Common.targets.
+    <Target Name="BeforeBuild">
+    </Target>
+    <Target Name="AfterBuild">
+    </Target>
+    -->
+</Project>
\ No newline at end of file

Rest/packages.config

+<?xml version="1.0" encoding="utf-8"?>
+<packages>
+  <package id="AsyncUsageAnalyzers" version="1.0.0-alpha003" targetFramework="net452" developmentDependency="true" />
+  <package id="Nancy" version="2.0.0-clinteastwood" targetFramework="net452" />
+  <package id="Nancy.Hosting.Self" version="2.0.0-clinteastwood" targetFramework="net452" />
+</packages>
\ No newline at end of file