curl --request POST \
  --url https://api.sandbox.cheqpay.mx/pos/checkout/pay \
  --header 'Content-Type: application/json' \
  --header 'x-api-key: <api-key>' \
  --header 'x-merchant-id: <api-key>' \
  --data '
{
  "externalId": "ORDER-123",
  "customer": {
    "externalId": "CUST-123",
    "firstName": "John",
    "lastName": "Doe",
    "email": "john.doe@example.com",
    "phoneNumber": "+1234567890"
  },
  "amount": 100.5,
  "currency": "USD",
  "paymentMethod": {
    "options": {}
  },
  "billingAddress": {
    "address": "123 Main St",
    "city": "New York",
    "state": "NY",
    "postalCode": "10001",
    "country": "US"
  },
  "description": "Payment for order #123"
}
'

import requests

url = "https://api.sandbox.cheqpay.mx/pos/checkout/pay"

payload = {
    "externalId": "ORDER-123",
    "customer": {
        "externalId": "CUST-123",
        "firstName": "John",
        "lastName": "Doe",
        "email": "john.doe@example.com",
        "phoneNumber": "+1234567890"
    },
    "amount": 100.5,
    "currency": "USD",
    "paymentMethod": { "options": {} },
    "billingAddress": {
        "address": "123 Main St",
        "city": "New York",
        "state": "NY",
        "postalCode": "10001",
        "country": "US"
    },
    "description": "Payment for order #123"
}
headers = {
    "x-api-key": "<api-key>",
    "x-merchant-id": "<api-key>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {
    'x-api-key': '<api-key>',
    'x-merchant-id': '<api-key>',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    externalId: 'ORDER-123',
    customer: {
      externalId: 'CUST-123',
      firstName: 'John',
      lastName: 'Doe',
      email: 'john.doe@example.com',
      phoneNumber: '+1234567890'
    },
    amount: 100.5,
    currency: 'USD',
    paymentMethod: {options: {}},
    billingAddress: {
      address: '123 Main St',
      city: 'New York',
      state: 'NY',
      postalCode: '10001',
      country: 'US'
    },
    description: 'Payment for order #123'
  })
};

fetch('https://api.sandbox.cheqpay.mx/pos/checkout/pay', 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.sandbox.cheqpay.mx/pos/checkout/pay",
  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([
    'externalId' => 'ORDER-123',
    'customer' => [
        'externalId' => 'CUST-123',
        'firstName' => 'John',
        'lastName' => 'Doe',
        'email' => 'john.doe@example.com',
        'phoneNumber' => '+1234567890'
    ],
    'amount' => 100.5,
    'currency' => 'USD',
    'paymentMethod' => [
        'options' => [
                
        ]
    ],
    'billingAddress' => [
        'address' => '123 Main St',
        'city' => 'New York',
        'state' => 'NY',
        'postalCode' => '10001',
        'country' => 'US'
    ],
    'description' => 'Payment for order #123'
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "x-api-key: <api-key>",
    "x-merchant-id: <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.sandbox.cheqpay.mx/pos/checkout/pay"

	payload := strings.NewReader("{\n  \"externalId\": \"ORDER-123\",\n  \"customer\": {\n    \"externalId\": \"CUST-123\",\n    \"firstName\": \"John\",\n    \"lastName\": \"Doe\",\n    \"email\": \"john.doe@example.com\",\n    \"phoneNumber\": \"+1234567890\"\n  },\n  \"amount\": 100.5,\n  \"currency\": \"USD\",\n  \"paymentMethod\": {\n    \"options\": {}\n  },\n  \"billingAddress\": {\n    \"address\": \"123 Main St\",\n    \"city\": \"New York\",\n    \"state\": \"NY\",\n    \"postalCode\": \"10001\",\n    \"country\": \"US\"\n  },\n  \"description\": \"Payment for order #123\"\n}")

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

	req.Header.Add("x-api-key", "<api-key>")
	req.Header.Add("x-merchant-id", "<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.sandbox.cheqpay.mx/pos/checkout/pay")
  .header("x-api-key", "<api-key>")
  .header("x-merchant-id", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"externalId\": \"ORDER-123\",\n  \"customer\": {\n    \"externalId\": \"CUST-123\",\n    \"firstName\": \"John\",\n    \"lastName\": \"Doe\",\n    \"email\": \"john.doe@example.com\",\n    \"phoneNumber\": \"+1234567890\"\n  },\n  \"amount\": 100.5,\n  \"currency\": \"USD\",\n  \"paymentMethod\": {\n    \"options\": {}\n  },\n  \"billingAddress\": {\n    \"address\": \"123 Main St\",\n    \"city\": \"New York\",\n    \"state\": \"NY\",\n    \"postalCode\": \"10001\",\n    \"country\": \"US\"\n  },\n  \"description\": \"Payment for order #123\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.sandbox.cheqpay.mx/pos/checkout/pay")

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

request = Net::HTTP::Post.new(url)
request["x-api-key"] = '<api-key>'
request["x-merchant-id"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"externalId\": \"ORDER-123\",\n  \"customer\": {\n    \"externalId\": \"CUST-123\",\n    \"firstName\": \"John\",\n    \"lastName\": \"Doe\",\n    \"email\": \"john.doe@example.com\",\n    \"phoneNumber\": \"+1234567890\"\n  },\n  \"amount\": 100.5,\n  \"currency\": \"USD\",\n  \"paymentMethod\": {\n    \"options\": {}\n  },\n  \"billingAddress\": {\n    \"address\": \"123 Main St\",\n    \"city\": \"New York\",\n    \"state\": \"NY\",\n    \"postalCode\": \"10001\",\n    \"country\": \"US\"\n  },\n  \"description\": \"Payment for order #123\"\n}"

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