curl --request GET \
  --url https://amzdownloader.com/api/v1/openapi.json

const options = {method: 'GET'};

fetch('https://amzdownloader.com/api/v1/openapi.json', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

import requests

url = "https://amzdownloader.com/api/v1/openapi.json"

response = requests.get(url)

print(response.text)

package main

import (
	"fmt"
	"net/http"
	"io"
)

func main() {

	url := "https://amzdownloader.com/api/v1/openapi.json"

	req, _ := http.NewRequest("GET", url, nil)

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

{}