Paystack with Saleor

# saleor/payment/gateways/paystack/__init__.py
import requests, hmac, hashlib
from saleor.payment.interface import GatewayConfig, GatewayResponse, PaymentData

PAYSTACK_API = 'https://api.paystack.co'

def process_payment(payment_information: PaymentData, config: GatewayConfig) -> GatewayResponse:
    secret_key = config.connection_params['secret_key']
    resp = requests.post(
        PAYSTACK_API + '/transaction/initialize',
        json={
            'email': payment_information.customer_email,
            'amount': int(payment_information.amount * 100),  # to minor unit
            'reference': payment_information.token,
            'currency': 'NGN',  # or from config
            'callback_url': config.connection_params['callback_url'],
        },
        headers={'Authorization': 'Bearer ' + secret_key},
    )
    data = resp.json()
    return GatewayResponse(
        is_success=data['status'],
        client_token=data['data']['authorization_url'],  # storefront redirects here
        transaction_id=data['data']['reference'],
        amount=payment_information.amount,
        currency=payment_information.currency,
        error=data.get('message') if not data['status'] else None,
    )

def confirm_payment(payment_information: PaymentData, config: GatewayConfig) -> GatewayResponse:
    secret_key = config.connection_params['secret_key']
    resp = requests.get(
        PAYSTACK_API + '/transaction/verify/' + payment_information.token,
        headers={'Authorization': 'Bearer ' + secret_key},
    )
    data = resp.json()
    success = data['data']['status'] == 'success'
    return GatewayResponse(
        is_success=success,
        transaction_id=payment_information.token,
        amount=data['data']['amount'] / 100,
        currency=data['data']['currency'],
        error=None if success else data['data'].get('gateway_response'),
    )

# saleor/settings.py
PLUGINS = [
    # ... other plugins
    'saleor.payment.gateways.paystack.PaystackGatewayPlugin',
]

# In your PaystackGatewayPlugin class:
class PaystackGatewayPlugin(BasePlugin):
    PLUGIN_NAME = 'Paystack'
    PLUGIN_ID = 'paystack'
    CONFIG_STRUCTURE = {
        'secret_key': {'label': 'Secret Key', 'type': 'secret'},
        'callback_url': {'label': 'Callback URL', 'type': 'string'},
    }
    DEFAULT_ACTIVE = False

After registering, go to Saleor Dashboard → Plugins → Paystack to enter your secret key and callback URL. Activate the plugin and assign it to your channels.

See the Paystack integrations overview for all platform options.

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