przelewy24

work in progress async python lib for przelewy24 api

Project status

development phase, updates can contain breaking changes (!)

Basic usage

from aiohttp import web
from uuid import uuid4
import przelewy24 as p24

async def create_payment():
    # Random string to identify the transaction
    session_id = uuid4().hex
    
    async with p24.P24(
        merchant_id=0,
        crc='',
        api_key='',
        return_url=f"https://example.com/return?session_id={session_id}",
        sandbox=False,
    ) as client:
        trans: p24.TransactionCreateResponse = await client.create_transaction(
            150_00,
            "PLN",
            description="Test transaction",
            email="[email protected]",
            session_id=session_id
        )
    
    raise web.HTTPFound(trans.url)


async def check_status(request: web.Request):
    session_id = request.query.get("session_id")
    
    async with p24.P24(
        merchant_id=0,
        crc='',
        api_key='',
        return_url='',
        sandbox=False,
    ) as client:
        transaction_data = await client.fetch_transaction_data(session_id)
        if not transaction_data:
            raise web.HTTPBadRequest(text="Invalid session_id")
    
        if transaction_data.status == p24.TransactionStatus.NO_PAYMENT:
            raise web.HTTPBadRequest(text="No payment was made.")
        
        if transaction_data.status == p24.TransactionStatus.PAYMENT_MADE:
            raise web.HTTPBadRequest(text="You have already paid for this transaction.")
        
        if transaction_data.status == p24.TransactionStatus.PAYMENT_RETURNED:
            raise web.HTTPBadRequest(text="Payment was refunded.")
        
        try:
            await transaction_data.verify()
        except p24.P24BadRequestError:
            raise web.HTTPBadRequest(reason="Error: Cannot verify payment")
        
        # Remember to check if transaction_data.amount is equal to the amount you expect
    
    return web.Response(text="Payment successful")