curl --request POST \
  --url https://api-beta.pepay.io/api/commerce/merchant/checkout/invoice \
  --header 'Content-Type: application/json' \
  --header 'x-commerce-api-key: <api-key>' \
  --data '
{
  "customer_id": "cust_123456",
  "estimateId": "550e8400-e29b-41d4-a716-446655440000",
  "addressId": "550e8400-e29b-41d4-a716-446655440222",
  "refundDestinationWalletAddressBsc": "0x0000000000000000000000000000000000000001"
}
'

import requests

url = "https://api-beta.pepay.io/api/commerce/merchant/checkout/invoice"

payload = {
    "customer_id": "cust_123456",
    "estimateId": "550e8400-e29b-41d4-a716-446655440000",
    "addressId": "550e8400-e29b-41d4-a716-446655440222",
    "refundDestinationWalletAddressBsc": "0x0000000000000000000000000000000000000001"
}
headers = {
    "x-commerce-api-key": "<api-key>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {'x-commerce-api-key': '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    customer_id: 'cust_123456',
    estimateId: '550e8400-e29b-41d4-a716-446655440000',
    addressId: '550e8400-e29b-41d4-a716-446655440222',
    refundDestinationWalletAddressBsc: '0x0000000000000000000000000000000000000001'
  })
};

fetch('https://api-beta.pepay.io/api/commerce/merchant/checkout/invoice', 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-beta.pepay.io/api/commerce/merchant/checkout/invoice",
  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([
    'customer_id' => 'cust_123456',
    'estimateId' => '550e8400-e29b-41d4-a716-446655440000',
    'addressId' => '550e8400-e29b-41d4-a716-446655440222',
    'refundDestinationWalletAddressBsc' => '0x0000000000000000000000000000000000000001'
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "x-commerce-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"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://api-beta.pepay.io/api/commerce/merchant/checkout/invoice"

	payload := strings.NewReader("{\n  \"customer_id\": \"cust_123456\",\n  \"estimateId\": \"550e8400-e29b-41d4-a716-446655440000\",\n  \"addressId\": \"550e8400-e29b-41d4-a716-446655440222\",\n  \"refundDestinationWalletAddressBsc\": \"0x0000000000000000000000000000000000000001\"\n}")

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

	req.Header.Add("x-commerce-api-key", "<api-key>")
	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-beta.pepay.io/api/commerce/merchant/checkout/invoice")
  .header("x-commerce-api-key", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"customer_id\": \"cust_123456\",\n  \"estimateId\": \"550e8400-e29b-41d4-a716-446655440000\",\n  \"addressId\": \"550e8400-e29b-41d4-a716-446655440222\",\n  \"refundDestinationWalletAddressBsc\": \"0x0000000000000000000000000000000000000001\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api-beta.pepay.io/api/commerce/merchant/checkout/invoice")

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

request = Net::HTTP::Post.new(url)
request["x-commerce-api-key"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"customer_id\": \"cust_123456\",\n  \"estimateId\": \"550e8400-e29b-41d4-a716-446655440000\",\n  \"addressId\": \"550e8400-e29b-41d4-a716-446655440222\",\n  \"refundDestinationWalletAddressBsc\": \"0x0000000000000000000000000000000000000001\"\n}"

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

{
  "success": true,
  "data": {
    "orderId": "550e8400-e29b-41d4-a716-446655440333",
    "invoiceId": "550e8400-e29b-41d4-a716-446655440111",
    "invoiceUrl": "https://pay.example.com/pay?session=...&signature=...",
    "session": "550e8400-e29b-41d4-a716-446655440444",
    "signature": "<signatureHash>.<timestamp>",
    "payment_session_headers": {
      "x-session-token": "550e8400-e29b-41d4-a716-446655440444",
      "x-signature": "<signatureHash>.<timestamp>"
    },
    "merchantId": 123,
    "networkEnvironment": "devnet",
    "customerId": "cust_123456",
    "amount": 13.99,
    "status": "unpaid",
    "expiresAt": 1765844400,
    "endpoints": {
      "checkOrder": "/api/commerce/merchant/orders/550e8400-e29b-41d4-a716-446655440333",
      "checkPayment": "/api/commerce/merchant/payments/550e8400-e29b-41d4-a716-446655440333/status",
      "cancelOrder": "/api/commerce/merchant/orders/550e8400-e29b-41d4-a716-446655440333/cancel"
    }
  }
}