dns-updater/ip/resolver/decoder/jsonip.go

package decoder

import (
	"encoding/json"
	"io"
)

func Jsonip(r io.Reader) (string, error) {
	var v struct {
		Ip       string `json:"ip"`
		Location string `json:"geo-ip"`
		Help     string `json:"API Help"`
	}
	err := json.NewDecoder(r).Decode(&v)
	return v.Ip, err
}