Pine Labs Online P3P Buyer SDK (Python)

Python SDK for Pine Labs Online P3P buyer clients. It mirrors @pine-labs-online/p3p-buyer-sdk, intercepts HTTP 402 Payment Required responses, creates customer-scoped P3P payment credentials, and retries paid requests.

Installation

pip install pinelabs-p3p-buyer-sdk

Import module: pinelabs_p3p_buyer. Requires Python 3.9 or newer.

Quick Start

from pinelabs_p3p_buyer import (
    BuyerRuntimeContext,
    P3PEnvironment,
    PaymentGateway,
    PaymentMethod,
    PluralBuyer,
    PluralBuyerConfig,
)

buyer = PluralBuyer.create(PluralBuyerConfig(
    env=P3PEnvironment.SANDBOX,
    paymentGateway=PaymentGateway.PineLabsOnline,
    selectedPaymentMethod=PaymentMethod.UpiSbmd,
))

response = buyer.get(
    "https://seller.example.com/api/premium",
    context=BuyerRuntimeContext(
        customerKey="customer-api-token",
        customerReference="9876543210",
        mobileNumber="9876543210",
    ),
)
print(response.json())
buyer.close()

Customer identity is runtime context, not static SDK config. This lets one buyer instance safely serve many customers.

402 Flow

1. Your code calls buyer.get(url, context=...).
2. The seller returns HTTP 402 with WWW-Authenticate: Payment <challenge>.
3. The SDK decodes the challenge and validates paymentGateway == "PINE LABS ONLINE".
4. The SDK calls POST /api/v1/customer/mpp/token with:
   • X-Customer-Key: <context.customerKey>
   • customer.mobile_number
   • challenge_id
   • payment_amount.value in minor units
5. The SDK retries the seller with P3P-Credential: Payment <credential>.
6. The seller captures the payment and may return Payment-Receipt.

Direct Token API

from pinelabs_p3p_buyer import Amount, CreateTokenOptions, PaymentMethod

token = buyer.methods.create_token(CreateTokenOptions(
    customerKey="customer-api-token",
    customerReference="9876543210",
    mobileNumber="9876543210",
    challengeId="ch_...",
    paymentAmount=Amount(value=50000, currency="INR"),
    paymentMethod=PaymentMethod.UpiSbmd,
))

The buyer SDK no longer creates mandates. Mandate/pre-authorization creation is handled by the seller SDK.

Supported Methods

• PaymentMethod.UpiSbmd -> "SBMD" / UPI ReservePay
• PaymentMethod.Crypto -> "CRYPTO"

Error Handling

from pinelabs_p3p_buyer import P3PChallengeError, P3PError, P3PNetworkError

try:
    response = buyer.get(url, context=runtime_context)
except P3PChallengeError as err:
    ...
except P3PNetworkError as err:
    ...
except P3PError as err:
    print(err.code, err.http_status, err.details)

License

MIT