golang post query with host header oberri

post.go

package main

import (
	"crypto/tls"
	"fmt"
	"io/ioutil"
	"net/http"
	"strings"
)

func main() {

	url := "https://"

	method := "POST"

	payload := strings.NewReader(`{
    "jsonrpc": "2.0",
    "id": 0,
    "method": "listRecords"
}`)

	transport := &http.Transport{
		TLSClientConfig: &tls.Config{InsecureSkipVerify: true},
	}

	client := &http.Client{Transport: transport}
	req, err := http.NewRequest(method, url, payload)

	if err != nil {
		fmt.Println(err)
		return
	}
  
  // this is correct
	req.Host = ""

  // this won't work 
  req.Header.Add("Host", "")

	res, err := client.Do(req)
	if err != nil {
		fmt.Println(err)
		return
	}
	defer res.Body.Close()

	fmt.Printf("%v", res.Request.Response)

	body, err := ioutil.ReadAll(res.Body)
	if err != nil {
		fmt.Println(err)
		return
	}
	fmt.Println(string(body))
}