Add swashbuckle

• Install-Package swashbuckle

Modify SwaggerConfig class

• Remove PreApplicationStartMethod Attribute
• add parameter to Register method (HttpConfiguration config)
• change GlobalConfiguration.Configuration to use the config parameter
• Modify root Url => c.RootUrl(req => req.RequestUri.GetLeftPart(UriPartial.Authority) + req.GetRequestContext().VirtualPathRoot.TrimEnd('/'));

Modify Startup class

• add SwaggerConfig.Register(config); //Move to top (Above where routes are registered)

To navigate to Swagger UI

• BaseUrl + /swagger ##/ui/index Swagger docs
• BaseUrl + /swagger/docs/v1

Note SwaggerConfig.Register must appear before WebApiConfig.Register(config);