NSwag is a Swagger 2.0 API toolchain for .NET, TypeScript and other platforms, written in C#. The Swagger specification uses JSON and JSON Schema to describe a RESTful web API. The project provides tools to automatically generate client code from these Swagger specifications and integrate this generation into existing processes.

Swagger Generators:

• ASP.NET Web API, WebApiToSwaggerGenerator
• Types from .NET assemblies AssemblyToSwaggerGenerator

Client Generators:

• TypeScript, SwaggerToTypeScriptGenerator
• CSharp, SwaggerToCSharpGenerator

Read more about the available Swagger and Client Generators

Ways to use the toolchain:

• In your C# code
• Via command line
• Generate code with T4 templates in Visual Studio
• Windows GUI NSwagStudio

Downloads and Build Artifacts (command line tool and NSwagStudio)

This project uses NJsonSchema for .NET for JSON Schema generation.

The following code shows how to generate C# client classes to call a web service:

var service = SwaggerService.FromJson("...");

var generator = new SwaggerToCSharpGenerator(service);
generator.Class = "MyClass";
generator.Namespace = "MyNamespace";

var code = generator.GenerateFile();