curl --request POST \
  --url https://api.hyperline.co/v1/promotion-codes \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "code": "PROMO123",
  "coupon_id": "cou_DKL4Xcb5VSa8CQ",
  "customer_id": "cus_DKL4Xcb5VSa8CQ",
  "plan_id": "plan_DKL4Xcb5VSa8CQ",
  "product_id": "itm_DKL4Xcb5VSa8CQ",
  "expires_at": "2021-01-01T00:00:00.000Z",
  "max_redemptions": 10,
  "current_redemptions": 0,
  "duration_count": 1,
  "duration_period": "months",
  "only_for_first_time_order": false
}
'

import requests

url = "https://api.hyperline.co/v1/promotion-codes"

payload = {
    "code": "PROMO123",
    "coupon_id": "cou_DKL4Xcb5VSa8CQ",
    "customer_id": "cus_DKL4Xcb5VSa8CQ",
    "plan_id": "plan_DKL4Xcb5VSa8CQ",
    "product_id": "itm_DKL4Xcb5VSa8CQ",
    "expires_at": "2021-01-01T00:00:00.000Z",
    "max_redemptions": 10,
    "current_redemptions": 0,
    "duration_count": 1,
    "duration_period": "months",
    "only_for_first_time_order": False
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    code: 'PROMO123',
    coupon_id: 'cou_DKL4Xcb5VSa8CQ',
    customer_id: 'cus_DKL4Xcb5VSa8CQ',
    plan_id: 'plan_DKL4Xcb5VSa8CQ',
    product_id: 'itm_DKL4Xcb5VSa8CQ',
    expires_at: '2021-01-01T00:00:00.000Z',
    max_redemptions: 10,
    current_redemptions: 0,
    duration_count: 1,
    duration_period: 'months',
    only_for_first_time_order: false
  })
};

fetch('https://api.hyperline.co/v1/promotion-codes', 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.hyperline.co/v1/promotion-codes",
  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([
    'code' => 'PROMO123',
    'coupon_id' => 'cou_DKL4Xcb5VSa8CQ',
    'customer_id' => 'cus_DKL4Xcb5VSa8CQ',
    'plan_id' => 'plan_DKL4Xcb5VSa8CQ',
    'product_id' => 'itm_DKL4Xcb5VSa8CQ',
    'expires_at' => '2021-01-01T00:00:00.000Z',
    'max_redemptions' => 10,
    'current_redemptions' => 0,
    'duration_count' => 1,
    'duration_period' => 'months',
    'only_for_first_time_order' => false
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/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://api.hyperline.co/v1/promotion-codes"

	payload := strings.NewReader("{\n  \"code\": \"PROMO123\",\n  \"coupon_id\": \"cou_DKL4Xcb5VSa8CQ\",\n  \"customer_id\": \"cus_DKL4Xcb5VSa8CQ\",\n  \"plan_id\": \"plan_DKL4Xcb5VSa8CQ\",\n  \"product_id\": \"itm_DKL4Xcb5VSa8CQ\",\n  \"expires_at\": \"2021-01-01T00:00:00.000Z\",\n  \"max_redemptions\": 10,\n  \"current_redemptions\": 0,\n  \"duration_count\": 1,\n  \"duration_period\": \"months\",\n  \"only_for_first_time_order\": false\n}")

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

	req.Header.Add("Authorization", "Bearer <token>")
	req.Header.Add("Content-Type", "application/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://api.hyperline.co/v1/promotion-codes")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"code\": \"PROMO123\",\n  \"coupon_id\": \"cou_DKL4Xcb5VSa8CQ\",\n  \"customer_id\": \"cus_DKL4Xcb5VSa8CQ\",\n  \"plan_id\": \"plan_DKL4Xcb5VSa8CQ\",\n  \"product_id\": \"itm_DKL4Xcb5VSa8CQ\",\n  \"expires_at\": \"2021-01-01T00:00:00.000Z\",\n  \"max_redemptions\": 10,\n  \"current_redemptions\": 0,\n  \"duration_count\": 1,\n  \"duration_period\": \"months\",\n  \"only_for_first_time_order\": false\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.hyperline.co/v1/promotion-codes")

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

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"code\": \"PROMO123\",\n  \"coupon_id\": \"cou_DKL4Xcb5VSa8CQ\",\n  \"customer_id\": \"cus_DKL4Xcb5VSa8CQ\",\n  \"plan_id\": \"plan_DKL4Xcb5VSa8CQ\",\n  \"product_id\": \"itm_DKL4Xcb5VSa8CQ\",\n  \"expires_at\": \"2021-01-01T00:00:00.000Z\",\n  \"max_redemptions\": 10,\n  \"current_redemptions\": 0,\n  \"duration_count\": 1,\n  \"duration_period\": \"months\",\n  \"only_for_first_time_order\": false\n}"

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

{
  "id": "promo_DKL4Xcb5VSa8CQ",
  "code": "PROMO123",
  "coupon_id": "cou_DKL4Xcb5VSa8CQ",
  "client_id": "cli_DKL4Xcb5VSa8CQ",
  "customer_id": "cus_DKL4Xcb5VSa8CQ",
  "plan_id": "plan_DKL4Xcb5VSa8CQ",
  "product_id": "itm_DKL4Xcb5VSa8CQ",
  "created_at": "2021-01-01T00:00:00.000Z",
  "updated_at": "2021-01-01T00:00:00.000Z",
  "expires_at": "2021-01-01T00:00:00.000Z",
  "max_redemptions": 10,
  "current_redemptions": 0,
  "duration_count": 1,
  "duration_period": "months",
  "only_for_first_time_order": false
}