config := swagger.Config{
		WebServices:    restful.DefaultContainer.RegisteredWebServices(), 
		FileStyle:	"json", //optional, default is yaml
		OpenService:     true,  //should show it in rest API service
		WebServicesUrl: "http://localhost:8080",
        ApiPath:        "/apidocs.json", //swagger doc api path
		OutFilePath: os.Getenv("SWAGGERFILEPATH"),
} 
swagger.RegisterSwaggerService(config, restful.DefaultContainer)

	type X struct {
		A int
		B int `json:"C"`  //Will generate C here
		D int `json:"-"`  //Will ignore it
	}