golang json PUT example

main.go

package main

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

type Data struct {
	A string `json:"z"`
	B string `json:"x"`
}

const endPoint string = "https://...."

func main() {

	data := Data{A: "aaa", B: "bbb"}
	log.Println(data)
	b, err := json.Marshal(data)
	if err != nil {
		log.Fatal(err)
	}
	log.Println("json:", string(b))

	var client http.Client
	req, err := http.NewRequest(
		"PUT",
		endPoint,
		bytes.NewBuffer(b),
	)
	req.Header.Set("Content-Type", "application/json")
	resp, err := client.Do(req)
	if err != nil {
		log.Fatal(err)
	}
	defer resp.Body.Close()

	log.Println("status:", resp.Status)
	log.Println("status code:", resp.StatusCode)
	//fmt.Println("body:", resp.)
	body, _ := ioutil.ReadAll(resp.Body)
	log.Println("response Body:", string(body))
}