package main
import (
"fmt"
"strings"
"net/http"
"io/ioutil"
)
func main() {
url := "https://api.courier.com/users/user-1234/tokens/ABW7HO9Y7XAQXZ7Y"
payload := strings.NewReader("{\"provider_key\":\"firebase-fcm\",\"device\":{\"app_id\":\"com.example.app\",\"ad_id\":\"1234567890\",\"device_id\":\"1234567890\",\"platform\":\"android\",\"manufacturer\":\"Samsung\",\"model\":\"SM-G930F\"},\"tracking\":{\"os_version\":\"9\",\"ip\":\"1.2.3.4\",\"lat\":\"1.2\",\"long\":\"3.4\"},\"expiry_date\":\"2030-01-01T00:00:00.000Z\",\"token\":\"ABW7HO9Y7XAQXZ7Y\"}")
req, _ := http.NewRequest("PUT", url, payload)
req.Header.Add("Accept", "application/json")
req.Header.Add("Content-Type", "application/json")
res, _ := http.DefaultClient.Do(req)
defer res.Body.Close()
body, _ := ioutil.ReadAll(res.Body)
fmt.Println(res)
fmt.Println(string(body))
}