curl --request POST \
  --url https://b.anny.co/api/v1/order/voucher \
  --header 'Content-Type: application/vnd.api+json' \
  --data '
{
  "voucher_code": "20OFF"
}
'

import requests

url = "https://b.anny.co/api/v1/order/voucher"

payload = { "voucher_code": "20OFF" }
headers = {"Content-Type": "application/vnd.api+json"}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {'Content-Type': 'application/vnd.api+json'},
  body: JSON.stringify({voucher_code: '20OFF'})
};

fetch('https://b.anny.co/api/v1/order/voucher', 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://b.anny.co/api/v1/order/voucher",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'voucher_code' => '20OFF'
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/vnd.api+json"
  ],
]);

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

curl_close($curl);

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

package main

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

func main() {

	url := "https://b.anny.co/api/v1/order/voucher"

	payload := strings.NewReader("{\n  \"voucher_code\": \"20OFF\"\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("Content-Type", "application/vnd.api+json")

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

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

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://b.anny.co/api/v1/order/voucher")
  .header("Content-Type", "application/vnd.api+json")
  .body("{\n  \"voucher_code\": \"20OFF\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://b.anny.co/api/v1/order/voucher")

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

request = Net::HTTP::Post.new(url)
request["Content-Type"] = 'application/vnd.api+json'
request.body = "{\n  \"voucher_code\": \"20OFF\"\n}"

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

{
  "data": {
    "type": "orders",
    "id": "2013266",
    "attributes": {
      "number": "BO95786261",
      "currency": "EUR",
      "total": 277,
      "net_amount": 232.77,
      "tax_amount": 44.23,
      "discount_amount": 0,
      "status": "draft",
      "access_token": "e04NrT789XmaGvYopaflM5Kp1byLt0",
      "expires_at": "2021-09-24T14:48:51+00:00",
      "created_at": "2021-09-24T14:33:51+00:00",
      "updated_at": "2021-09-24T14:34:08+00:00"
    },
    "relationships": {
      "bookings": {
        "data": [
          {
            "type": "bookings",
            "id": "3718347"
          }
        ]
      },
      "customer": {
        "data": null
      },
      "sub_orders": {
        "data": [
          {
            "type": "orders",
            "id": "2013267"
          }
        ]
      }
    },
    "links": {
      "self": "https://b.anny.co/api/v1/orders/2013266"
    },
    "meta": {
      "download_url": "https://b.anny.co/downloads/order-confirmation/2013266?access_token=e04NrT789XmaGvYopaflM5Kp1byLt0",
      "voucher_code": "20OFF",
      "is_base_order": true,
      "payment_flow": "pay-offline",
      "pay_now_amount": 0
    }
  }
}

{
  "errors": [
    {
      "status": "404",
      "code": "voucher_not_found",
      "title": "Gutschein nicht gefunden",
      "detail": "Der Gutschein konnte nicht gefunden werden"
    }
  ]
}