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node-polish-payments

A library for handling Polish online payments.

Contact

If you have questions or want to get in touch, you can use the details below:

• Discord: @mid_plug
• E-mail: [e-mail]

Installation

Install the library using npm:

npm install node-polish-payments
npm install axios

Examples of use (Paybylink)

Payment (Transfer/Blik)

Initialization

const {
  PaybylinkTransfer,
  PaybylinkGenerateTransferSignature,
} = require('node-polish-payments');

const paybylinkSignature = new PaybylinkGenerateTransferSignature(
  'secretKey',
  shopId
);
const paybylinkTransfer = new PaybylinkTransfer('secretKey', shopId);

Configuration of transfer options

paybylinkTransfer.options.price = 5; // (REQUIRED)
paybylinkTransfer.options.control = ''; // (OPTIONAL)
paybylinkTransfer.options.description = ''; // (OPTIONAL)
paybylinkTransfer.options.email = ''; // (OPTIONAL)
paybylinkTransfer.options.notifyURL = ''; // (OPTIONAL)
paybylinkTransfer.options.returnUrlSuccess = ''; // (OPTIONAL)
paybylinkTransfer.options.returnUrlSuccessTidPass = true; // (OPTIONAL)
paybylinkTransfer.options.hideReceiver = true; // (OPTIONAL)
paybylinkTransfer.options.customFinishNote = 'Your custom note'; // (OPTIONAL)

Create a transfer

const createTransfer = await paybylinkTransfer.createTransfer();

if (createTransfer.data && createTransfer.data.url) {
  // After creating the payment correctly in JSON, we get { url: '', transactionId: '' }
  const transactionUrl = createTransfer.data.url;
  const transactionId = createTransfer.data.transactionId;
  console.log(
    `TRANSACTION CREATED\nID: ${transactionId}\nURL: ${transactionUrl}`
  );
} else {
  // If you receive an error, it will be in the format: { errorCode: 404, error: "Here some error" }
  // 400 Error decoding data into JSON format
  // 401 Wymanage fields not specified
  // 402 Field size invalid
  // 403 Invalid query signature
  // 404 Store id not found
  // 500 Internal error during transaction generation
  // 200 All ok transaction has been generated.
  console.log('ERROR: ', createTransfer);
}

Example of validation of sent notification (EXPRESS.JS)

const bodyParser = require('body-parser');
const express = require('express');
const app = express();

app.use(bodyParser.json());

app.post('/', (req, res) => {
  const signature = paybylinkSignature.generate(req.body);
  if (signature === req.body.signature) {
    res.set('Content-Type', 'text/plan');
    return res.send('OK');
  }
});

Payment (Paysafecard)

Initialization

const { PaybylinkPaysafecard } = require('node-polish-payments');
const paybylinkPaysafecard = new PaybylinkPaysafecard(userId, shopId, 'pin');

Configuration of Paysafecard options

paybylinkPaysafecard.options.amount = 10; // (REQUIRED)
paybylinkPaysafecard.options.return_ok =
  'http://yourwebsite.com/payment_success'; // (REQUIRED)
paybylinkPaysafecard.options.return_fail =
  'http://yourwebsite.com/payment_failure'; // (REQUIRED)
paybylinkPaysafecard.options.url = 'http://yourwebsite.com/payment_receive.php'; // (REQUIRED)
paybylinkPaysafecard.options.control = '123456'; // (REQUIRED)
paybylinkPaysafecard.options.description = ''; // (OPTIONAL)
paybylinkPaysafecard.options.get_pid = true; // (OPTIONAL)

Generate a Paysafecard payment

const payment = await paybylinkPaysafecard.generatePayment();
console.log(payment);

if (createTransfer.data && createTransfer.data.url) {
  // After creating the payment correctly in JSON, we get { url: '', transactionId: '' }
  const transactionUrl = createTransfer.data.url;
  const transactionId = createTransfer.data.transactionId;
  console.log(
    `TRANSACTION CREATED\nID: ${transactionId}\nURL: ${transactionUrl}`
  );
} else {
  // If you receive an error it will be in the format: { errorCode: code, error: "Here some error" }
  // 400 Error decoding data into JSON format
  // 401 Wymanage fields not specified
  // 402 Field size invalid
  // 403 Invalid query signature
  // 404 Store id not found
  // 500 Internal error during transaction generation
  // 200 All ok transaction has been generated.
  console.log(payment);
}

Example of validation of sent notification (EXPRESS.JS)

const axios = require('axios');

app.post('/', async (req, res) => {
  const allowedIpsUrl = 'https://paybylink.pl/psc/ips/';
  const clientIp = req.headers['cf-connecting-ip'] || req.ip;

  const userId = process.env.USER_ID;
  const shopId = process.env.SHOP_ID;

  try {
    if (req.body.userid !== userId || req.body.shopid !== shopId) {
      res.status(400).send('Invalid userId or shopId values.');
      return;
    }

    const response = await axios.get(allowedIpsUrl);
    const allowedIps = response.data.split(',').map(ip => ip.trim());

    if (allowedIps.includes(clientIp)) {
      if (req.body === 'TRUE') {
        res.send(req.body);
      } else {
        res.status(403).send('Transaction unsuccessful.');
      }
    } else {
      res.status(403).send('Invalid IP address.');
    }
  } catch (error) {
    console.error('Error:', error.message);
    res.status(500).send('An error occurred.');
  }
});

Payment (SMS PREMIUM)

Initialization

const { PaybylinkSms } = require('node-polish-payments');
const paybylinkSms = new PaybylinkSms(userId, serviceId);

Configuration of SMS options

paybylinkSms.code = 'your_sms_code'; // (REQUIRED)
paybylinkSms.number = 123456789; // (REQUIRED)

Check the SMS code

const checkCodeResult = await paybylinkSms.checkCode();
console.log(checkCodeResult);

Examples of use (COOMING SOON...)