XML to JSON in Go the full code

handler.go

package function

import (
	"encoding/json"
	"encoding/xml"
	"fmt"
	"io/ioutil"
	"log"
	"net/http"
)

type PostData struct {
	Channel struct {
		Posts []struct {
			Title       string   `xml:"title"`
			Link        string   `xml:"link"`
			Category    []string `xml:"category"`
			Creator     string   `xml:"creator"`
			PubDate     string   `xml:"pubDate"`
			Updated     string   `xml:"updated"`
			License     string   `xml:"license"`
			Encoded     string   `xml:"encoded"`
			Description string   `xml:"description"`
		} `xml:"item"`
	} `xml:"channel"`
}

func Handle(req []byte) string {
	resp, err := http.Get("https://medium.com/feed/@" + string(req))

	if err != nil {
		log.Fatal(err)
	}
	defer resp.Body.Close()
	body, _ := ioutil.ReadAll(resp.Body)
	data := &PostData{}
	err = xml.Unmarshal(body, data)
	json, _ := json.Marshal(data.Channel.Posts)
	return fmt.Sprintf("%s", string(json))
}