curl --request GET \
  --url https://api.amberdata.com/markets/derivatives/analytics/volatility/term-structures/forward-volatility/constant \
  --header 'x-api-key: <api-key>'

import requests

url = "https://api.amberdata.com/markets/derivatives/analytics/volatility/term-structures/forward-volatility/constant"

headers = {"x-api-key": "<api-key>"}

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

print(response.text)

const options = {method: 'GET', headers: {'x-api-key': '<api-key>'}};

fetch('https://api.amberdata.com/markets/derivatives/analytics/volatility/term-structures/forward-volatility/constant', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.amberdata.com/markets/derivatives/analytics/volatility/term-structures/forward-volatility/constant",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "GET",
  CURLOPT_HTTPHEADER => [
    "x-api-key: <api-key>"
  ],
]);

$response = curl_exec($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.amberdata.com/markets/derivatives/analytics/volatility/term-structures/forward-volatility/constant"

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

	req.Header.Add("x-api-key", "<api-key>")

	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.amberdata.com/markets/derivatives/analytics/volatility/term-structures/forward-volatility/constant")
  .header("x-api-key", "<api-key>")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.amberdata.com/markets/derivatives/analytics/volatility/term-structures/forward-volatility/constant")

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

request = Net::HTTP::Get.new(url)
request["x-api-key"] = '<api-key>'

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

{
  "status": 200,
  "title": "OK",
  "description": "Successful request",
  "payload": {
    "data": [
      {
        "timestamp": "2024-05-23T22:22:00.000Z",
        "exchange": "deribit",
        "currency": "BTC",
        "daysToExpiration": 1,
        "atm": 48.35922628296513,
        "fwdAtm": null
      },
      {
        "timestamp": "2024-05-23T22:22:00.000Z",
        "exchange": "deribit",
        "currency": "BTC",
        "daysToExpiration": 2,
        "atm": 45.43736221438332,
        "fwdAtm": 42.3142175080092
      },
      {
        "timestamp": "2024-05-23T22:22:00.000Z",
        "exchange": "deribit",
        "currency": "BTC",
        "daysToExpiration": 3,
        "atm": 43.68325184564065,
        "fwdAtm": 39.944607964365645
      },
      {
        "timestamp": "2024-05-23T22:22:00.000Z",
        "exchange": "deribit",
        "currency": "BTC",
        "daysToExpiration": 7,
        "atm": 46.16990851827613,
        "fwdAtm": 47.95034851977852
      },
      {
        "timestamp": "2024-05-23T22:22:00.000Z",
        "exchange": "deribit",
        "currency": "BTC",
        "daysToExpiration": 14,
        "atm": 48.41110278679033,
        "fwdAtm": 50.553034463624144
      },
      {
        "timestamp": "2024-05-23T22:22:00.000Z",
        "exchange": "deribit",
        "currency": "BTC",
        "daysToExpiration": 21,
        "atm": 50.49107793015334,
        "fwdAtm": 54.41302330858023
      },
      {
        "timestamp": "2024-05-23T22:22:00.000Z",
        "exchange": "deribit",
        "currency": "BTC",
        "daysToExpiration": 30,
        "atm": 52.56344667911033,
        "fwdAtm": 57.107257606586295
      },
      {
        "timestamp": "2024-05-23T22:22:00.000Z",
        "exchange": "deribit",
        "currency": "BTC",
        "daysToExpiration": 60,
        "atm": 57.73201821661908,
        "fwdAtm": 62.47444219791323
      },
      {
        "timestamp": "2024-05-23T22:22:00.000Z",
        "exchange": "deribit",
        "currency": "BTC",
        "daysToExpiration": 90,
        "atm": 60.38590165981284,
        "fwdAtm": 65.37124370147538
      },
      {
        "timestamp": "2024-05-23T22:22:00.000Z",
        "exchange": "deribit",
        "currency": "BTC",
        "daysToExpiration": 180,
        "atm": 65.50760799181039,
        "fwdAtm": 70.25693055029386
      }
    ],
    "metadata": {
      "api-version": "2023-09-30"
    }
  }
}

{}