curl --request POST \
  --url https://services.sandbox.pagosapi.com/loon/rtau/inquiry \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --header 'x-merchant-id: <x-merchant-id>' \
  --data '
{
  "requestId": "unique-uuid",
  "network": "visa",
  "account": {
    "accountNumber": "4111111111111111",
    "expiryYear": "2019",
    "expiryMonth": "12",
    "metadata": null
  },
  "subMerchantId": null
}
'

import requests

url = "https://services.sandbox.pagosapi.com/loon/rtau/inquiry"

payload = {
    "requestId": "unique-uuid",
    "network": "visa",
    "account": {
        "accountNumber": "4111111111111111",
        "expiryYear": "2019",
        "expiryMonth": "12",
        "metadata": None
    },
    "subMerchantId": None
}
headers = {
    "x-merchant-id": "<x-merchant-id>",
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {
    'x-merchant-id': '<x-merchant-id>',
    Authorization: 'Bearer <token>',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    requestId: 'unique-uuid',
    network: 'visa',
    account: {
      accountNumber: '4111111111111111',
      expiryYear: '2019',
      expiryMonth: '12',
      metadata: null
    },
    subMerchantId: null
  })
};

fetch('https://services.sandbox.pagosapi.com/loon/rtau/inquiry', 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://services.sandbox.pagosapi.com/loon/rtau/inquiry",
  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([
    'requestId' => 'unique-uuid',
    'network' => 'visa',
    'account' => [
        'accountNumber' => '4111111111111111',
        'expiryYear' => '2019',
        'expiryMonth' => '12',
        'metadata' => null
    ],
    'subMerchantId' => null
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json",
    "x-merchant-id: <x-merchant-id>"
  ],
]);

$response = curl_exec($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://services.sandbox.pagosapi.com/loon/rtau/inquiry"

	payload := strings.NewReader("{\n  \"requestId\": \"unique-uuid\",\n  \"network\": \"visa\",\n  \"account\": {\n    \"accountNumber\": \"4111111111111111\",\n    \"expiryYear\": \"2019\",\n    \"expiryMonth\": \"12\",\n    \"metadata\": null\n  },\n  \"subMerchantId\": null\n}")

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

	req.Header.Add("x-merchant-id", "<x-merchant-id>")
	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://services.sandbox.pagosapi.com/loon/rtau/inquiry")
  .header("x-merchant-id", "<x-merchant-id>")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"requestId\": \"unique-uuid\",\n  \"network\": \"visa\",\n  \"account\": {\n    \"accountNumber\": \"4111111111111111\",\n    \"expiryYear\": \"2019\",\n    \"expiryMonth\": \"12\",\n    \"metadata\": null\n  },\n  \"subMerchantId\": null\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://services.sandbox.pagosapi.com/loon/rtau/inquiry")

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

request = Net::HTTP::Post.new(url)
request["x-merchant-id"] = '<x-merchant-id>'
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"requestId\": \"unique-uuid\",\n  \"network\": \"visa\",\n  \"account\": {\n    \"accountNumber\": \"4111111111111111\",\n    \"expiryYear\": \"2019\",\n    \"expiryMonth\": \"12\",\n    \"metadata\": null\n  },\n  \"subMerchantId\": null\n}"

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

{
  "accountEncrypted": null,
  "account": {
    "accountNumber": "4111111111111111",
    "expiryYear": "2019",
    "expiryMonth": "12",
    "newAccountNumber": "4111111111111234",
    "newExpiryYear": "2029",
    "newExpiryMonth": "5",
    "responseCode": "LAE",
    "errorCode": null,
    "metadata": null
  },
  "requestId": "unique-uuid"
}

{
  "error": {
    "code": "<string>",
    "message": "<string>",
    "details": {}
  }
}