curl --request GET \
  --url https://api.tandapay.io/api/b2b/transactions/{transactionId} \
  --header 'Authorization: Bearer <token>'

const options = {method: 'GET', headers: {Authorization: 'Bearer <token>'}};

fetch('https://api.tandapay.io/api/b2b/transactions/{transactionId}', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

import requests

url = "https://api.tandapay.io/api/b2b/transactions/{transactionId}"

headers = {"Authorization": "Bearer <token>"}

response = requests.get(url, headers=headers)

print(response.text)

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.tandapay.io/api/b2b/transactions/{transactionId}",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "GET",
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>"
  ],
]);

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

curl_close($curl);

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

{
  "success": true,
  "data": {
    "transactionId": "aB3dE5fG7hJ9kL1mN2pQ",
    "externalReference": "order_10045",
    "type": "deposit",
    "method": "mpesa",
    "amount": 1500,
    "currency": "KES",
    "senderAmount": 1500,
    "senderCurrency": "KES",
    "receiverAmount": 1500,
    "receiverCurrency": "KES",
    "status": "SUCCESSFUL",
    "chargeStatus": "successful",
    "thirdPartyReference": "TJS4K2LM9P",
    "phoneNumber": "254712345678",
    "note": "Payment received",
    "fullTimestamp": "2026-10-28T09:14:22.000Z"
  }
}

{
  "success": false,
  "message": "Unauthorized"
}