Make a HTTP Post request in go

package main

import (
	"bytes"
	"crypto/tls"
	"encoding/json"
	"fmt"
	"log"
	"net/http"
	"time"
)

func main() {

	//Create a body using the json marshal.
	requestBody, err := json.Marshal(map[string]string{
		"title":  "tettjam",
		"userId": "15",
		"body":   "Hello from go prohem",
	})

	if err != nil {
		log.Fatal(err)
	}

	// create a timeout
	timeout := time.Duration(5 * time.Second)

	// if you are making a request to an http url you would need to skip
	// https check, below InsecureSkipvVerify:ture will do that. it is not a safe way to use in production.
	tr := &http.Transport{
		TLSClientConfig: &tls.Config{InsecureSkipVerify: true},
	}
	//create a client
	client := http.Client{Timeout: timeout, Transport: tr}

	// prepare the request
	req, err := http.NewRequest(
		"POST",
		"https://jsonplaceholder.typicode.com/posts",
		bytes.NewBuffer(requestBody))

	req.Header.Set("content-type", "application/json")

	if err != nil {
		log.Fatal(err)
	}

	//Send the HTTP Request returns a response(nill or body) or err
	resp, err := client.Do(req)

	if err != nil {
		log.Fatal(err)
	}

	// close the respones body if the response has a body insted of nil.
	defer resp.Body.Close()

	// print the status code to check if the resource was created.
	fmt.Println(resp.Status)
}