dynamic

type BalanceNode struct {
	Add      bool              `json:"add"`
	Scheme   string            `json:"scheme,default=http"`
	Host     string            `json:"host" binding:"required"`
	Metadata map[string]string `json:"metadata"`
	Weight   float64           `json:"weight,default=1.0"`
}

type Config struct {
	Switcher *Switch    `json:"switcher"`
	Limit    *RateLimit `json:"limit"`
}

type RateLimit struct {
	Every time.Duration
	Burst int
	Mode  int
}

type Switch struct {
	ServiceName string      `json:"service_name" binding:"required"`
	Add         bool        `json:"add"`
	Node        BalanceNode `json:"node" binding:"required"`
}