curl --request GET \
  --url https://{api}.subotiz.com/api/v1/subscription/{subscription_id}/quantity-preview \
  --header 'Authorization: Bearer <token>' \
  --header 'Request-Id: <request-id>'

const options = {
  method: 'GET',
  headers: {'Request-Id': '<request-id>', Authorization: 'Bearer <token>'}
};

fetch('https://{api}.subotiz.com/api/v1/subscription/{subscription_id}/quantity-preview', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

import requests

url = "https://{api}.subotiz.com/api/v1/subscription/{subscription_id}/quantity-preview"

headers = {
    "Request-Id": "<request-id>",
    "Authorization": "Bearer <token>"
}

response = requests.get(url, headers=headers)

print(response.text)

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://{api}.subotiz.com/api/v1/subscription/{subscription_id}/quantity-preview",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "GET",
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Request-Id: <request-id>"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

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

func main() {

	url := "https://{api}.subotiz.com/api/v1/subscription/{subscription_id}/quantity-preview"

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

	req.Header.Add("Request-Id", "<request-id>")
	req.Header.Add("Authorization", "Bearer <token>")

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

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

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.get("https://{api}.subotiz.com/api/v1/subscription/{subscription_id}/quantity-preview")
  .header("Request-Id", "<request-id>")
  .header("Authorization", "Bearer <token>")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://{api}.subotiz.com/api/v1/subscription/{subscription_id}/quantity-preview")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Get.new(url)
request["Request-Id"] = '<request-id>'
request["Authorization"] = 'Bearer <token>'

response = http.request(request)
puts response.read_body

{
  "code": "<string>",
  "message": "<string>",
  "data": {
    "quantity": "<string>",
    "cycle_index": 123,
    "effective_at": "<string>",
    "next_amount": "<string>",
    "breakdown": [
      {
        "tier_order": 123,
        "quantity_min": "<string>",
        "quantity_max": "<string>",
        "units_in_tier": "<string>",
        "unit_price": "<string>",
        "flat_amount": "<string>",
        "subtotal": "<string>"
      }
    ]
  }
}

{
  "code": "system_error",
  "message": "Internal server error."
}