tbc-payments

tbc-payments is a small, typed Python client for TBC Checkout. It helps a backend create a checkout session, redirect the customer to TBC's payment page, and later verify or manage the payment.

It has synchronous and asynchronous clients with the same API. The package manages access tokens and HTTP connections; it never handles card details.

What it supports

• Creating and looking up Checkout payments.
• Cancelling payments and completing pre-authorizations.
• Creating and deleting recurring-payment registrations.
• TBC Installment requests.
• Production and sandbox URLs.
• Typed models, structured API errors, timeouts, and conservative retries.

Installation

pip install tbc-payments

Python 3.10 or newer is required.

Create a payment

from tbc_payments import Amount, PaymentMethod, PaymentRequest, TBCClient

payment_request = PaymentRequest(
    amount=Amount("49.90"),
    return_url="https://shop.example.com/payments/return",
    callback_url="https://shop.example.com/webhooks/tbc",
    merchant_payment_id="order-1842",
    methods=(PaymentMethod.CARD, PaymentMethod.APPLE_PAY),
)

with TBCClient("api-key", "client-id", "client-secret") as tbc:
    payment = tbc.create_payment(payment_request)

redirect_url = payment.approval_url

Redirect the customer to redirect_url. A merchant_payment_id should be unique in your system so an ambiguous request can be reconciled safely.

Check the result

Treat the callback as a notification, not as confirmation that an order is paid. Return HTTP 200 promptly, then fetch the payment from TBC and fulfil the order only once.

payment = tbc.get_payment(callback_payload["PaymentId"])
if payment.status == "Succeeded":
    fulfil_order_once(payment.pay_id)

Async

from tbc_payments import Amount, AsyncTBCClient, PaymentRequest

async with AsyncTBCClient("api-key", "client-id", "client-secret", sandbox=True) as tbc:
    payment = await tbc.create_payment(
        PaymentRequest(Amount("1.00"), "https://shop.example.com/payments/return")
    )

Installments and recurring payments

Use PaymentMethod.INSTALLMENT with products whose total matches the payment amount:

from tbc_payments import InstallmentProduct, PaymentMethod

request = PaymentRequest(
    amount=Amount("100.00"),
    return_url="https://shop.example.com/payments/return",
    methods=(PaymentMethod.INSTALLMENT,),
    installment_products=(InstallmentProduct("50.00", 2, "Coffee maker"),),
)

For saved cards, enable save_card=True when creating the initial payment and store the returned recurring_id. Call execute_recurring_payment only after your business flow has established the necessary customer consent.

Behaviour worth knowing

• Amounts may have at most two decimal places. Values are validated rather than silently rounded.
• Tokens are refreshed before expiry. A failed read may be retried; money-moving requests are not retried automatically.
• cancel_payment returns None after a successful 200. complete_payment returns CompletionResult.
• sandbox=True uses https://test-api.tbcbank.ge/v1.

Development

python -m pip install -e '.[dev]'
pre-commit install
pytest
ruff check .
ruff format --check .
mypy
bandit -c pyproject.toml -r src
pip-audit

See CONTRIBUTING.md and SECURITY.md for contribution and vulnerability-reporting guidance.

License

MIT