Ban someone on cloudflare

cloudflare.go

package main

import (
	"encoding/json"
	"errors"
	"io/ioutil"
	"net/http"
	"net/url"
)

type Cloudflare struct {
	Msg      interface{} `json:"msg"`
	Response struct {
		Result struct {
			Action string `json:"action"`
			Ip     string `json:"ip"`
		} `json:"result"`
	} `json:"response"`
	Result string `json:"result"`
}

func CloudflareBanIp(ip string) (result string, err error) {
	queryValues := url.Values{}

	if ip == "" {
		err = errors.New("no ip provided")
		return
	}

	queryValues.Add("a", "ban")
	queryValues.Add("tkn", CloudflareKey)
	queryValues.Add("email", CloudflareEmail)
	queryValues.Add("key", ip)

	res, err := http.PostForm(CloudflareUrl, queryValues)
	if err != nil {
		err = errors.New("error reaching cloudflare")
		return
	}
	defer res.Body.Close()

	res.Header.Add("User-Agent", "Pram/1.2")

	body, err := ioutil.ReadAll(res.Body)
	if err != nil {
		err = errors.New("error parsing cloudflare response")
		return
	}

	cf_data := Cloudflare{}

	err = json.Unmarshal(body, &cf_data)
	if err != nil {
		err = errors.New("error parsing cloudflare data")
		return
	}

	result = cf_data.Result

	return
}