Create new file using Github API in Go language

gistfile1.txt

package main

import (
	"bytes"
	"encoding/base64"
	"encoding/json"
	"fmt"
	"io"
	"log"
	"net/http"
	"os"
)

func main() {
	user := "YOUR_USERNAME"
	token := "YOUR_TOKEN"
	url := "EXAMPLE:https://api.github.com/repos/WiseHands/ClusterDev/contents/config.yaml"
	fmt.Println("hello world ", user, token)


	data := "some data"
	encoded := base64.StdEncoding.EncodeToString([]byte(data))

	type Committer struct {
		Name    string `json:"name"`
		Email   string `json:"email"`
	}

	type RequestBody struct {
		Message    string `json:"message"`
		Committer Committer `json:"committer"`
		Content   string `json:"content"`
	}

	committer := Committer{
		Name:  "Bohdan Tsap",
		Email: "bohdaq@gmail.com",
	}
	
	body := RequestBody{
		Message:   "commit",
		Committer: committer,
		Content: encoded,
	}

	requestByte, _ := json.Marshal(body)
	requestReader := bytes.NewBuffer(requestByte)

	client := &http.Client{}
	req, err := http.NewRequest(http.MethodPut, url, requestReader)
	req.Header.Set("Authorization", "token " + token)
	if err != nil {
		// handle error
		log.Fatal(err)
	}
	resp, err := client.Do(req)
	if err != nil {
		// handle error
		log.Fatal(err)
	}
	defer resp.Body.Close()
	io.Copy(os.Stdout, resp.Body)
}