func serviceInstanceStatus(w http.ResponseWriter, r *http.Request, t auth.Token) error {
	instanceName := r.URL.Query().Get(":instance")
	serviceName := r.URL.Query().Get(":service")
	serviceInstance, err := getServiceInstanceOrError(serviceName, instanceName)
	if err != nil {
		return err
	}
	allowed := permission.Check(t, permission.PermServiceInstanceReadStatus,
		contextsForServiceInstance(serviceInstance, serviceName)...,
	)
	if !allowed {
		return permission.ErrUnauthorized
	}
	var b string
	requestID := requestIDHeader(r)
	if b, err = serviceInstance.Status(requestID); err != nil {
		return errors.Wrap(err, "Could not retrieve status of service instance, error")
	}
	_, err = fmt.Fprintf(w, `Service instance "%s" is %s`, instanceName, b)
	return err
}
func serviceInstanceStatus(w http.ResponseWriter, r *http.Request, t auth.Token) error {
	instanceName := r.URL.Query().Get(":instance")
	serviceName := r.URL.Query().Get(":service")
	serviceInstance, err := getServiceInstanceOrError(serviceName, instanceName)
	if err != nil {
		return err
	}
	allowed := permission.Check(t, permission.PermServiceInstanceReadStatus,
		contextsForServiceInstance(serviceInstance, serviceName)...,
	)
	if !allowed {
		return permission.ErrUnauthorized
	}
	var b string
	requestID := requestIDHeader(r)
	if b, err = serviceInstance.Status(requestID); err != nil {
		return errors.Wrap(err, "Could not retrieve status of service instance, error")
	}
	_, err = fmt.Fprintf(w, `Service instance "%s" is %s`, instanceName, b)
	return err
}
// title: service instance status
// path: /services/{service}/instances/{instance}/status
// method: GET
// responses:
//   200: List services instances
//   401: Unauthorized
//   404: Service instance not found