Fetch Reference Number

// Watcher's onMessage callback, see previous steps for more info on this
onMessage: (transaction) => {
  if (transaction.status === "pending_user_transfer_complete") {
    console.log(
      `Transaction reference number ${transaction.external_transaction_id}`,
      `also viewable at ${transaction.more_info_url}`,
    );
  }
};

from .api import poll_transction_until_status

response_body = poll_transaction_until_status(
    transaction_id,
    "pending_user_transfer_complete"
)
tx_dict = response_body["transaction"]
print(
    f"Transaction reference number {tx_dict['external_transaction_id']} "
    f"also viewable at {tx_dict['more_info_url']}"
)