redsys-api-js

How to use

Create payment form

javascript
const RedsysAPI = require('redsys-api');
var redsys = new RedsysAPI();
// Add some Parameters
redsys.setParameter('DS_MERCHANT_AMOUNT', 945);
redsys.setParameter('DS_MERCHANT_ORDER', '123456789101');
redsys.setParameter('DS_MERCHANT_MERCHANTCODE', '343801064');
redsys.setParameter('DS_MERCHANT_CURRENCY', '978');
redsys.setParameter('DS_MERCHANT_TRANSACTIONTYPE', data['transactionType']);
redsys.setParameter('DS_MERCHANT_TERMINAL', '1');
redsys.setParameter('DS_MERCHANT_MERCHANTURL', 'http://some_url.com');
redsys.setParameter('DS_MERCHANT_URLOK', 'http://some_other_url.com');
redsys.setParameter('DS_MERCHANT_URLKO', 'http://another_url.com');
redsys.setParameter('DS_MERCHANT_CONSUMERLANGUAGE', '002');
redsys.setParameter('DS_MERCHANT_PRODUCTDESCRIPTION', 'Some description');
var key = 'sq7HjrUOBfKmC576ILgskD5srU870gJ7';
var params = redsys.createMerchantParameters();
var signature = redsys.createMerchantSignature(key);

return

Test

;`

`Verify signature`

javascript
// let data be the data from the notification request. then
const RedsysAPI = require('redsys-api');

var redsys = new RedsysAPI(); var encoded = data['Ds_MerchantParameters']; var signature = data['Ds_Signature']; var key = 'sq7HjrUOBfKmC576ILgskD5srU870gJ7'; if (redsys.checkMerchantSignatureNotif(key, encoded, signature)){ var decoded = redsys.decodeMerchantParameters(encoded); // do something with the decoded data } else { // do something else }`Note that there is also a methodredsys.createMerchantSignatureNotif(key, encoded)available that returns base64 signature to compare with the original, however due to some base64 differencies it is recommended to use theredsys.checkMerchantSignatureNotif(key, encoded, signature)method. However if you want to use it, make sure to convert the original signature asBuffer.from(signature, 'base64').toString('base64');

Create payment form

javascript
const RedsysAPI = require('redsys-api');

var redsys = new RedsysAPI();
// Add some Parameters
redsys.setParameter('DS_MERCHANT_AMOUNT', 945);
redsys.setParameter('DS_MERCHANT_ORDER', '123456789101');
redsys.setParameter('DS_MERCHANT_MERCHANTCODE', '343801064');
redsys.setParameter('DS_MERCHANT_CURRENCY', '978');
redsys.setParameter('DS_MERCHANT_TRANSACTIONTYPE', data['transactionType']);
redsys.setParameter('DS_MERCHANT_TERMINAL', '1');
redsys.setParameter('DS_MERCHANT_MERCHANTURL', 'http://some_url.com');
redsys.setParameter('DS_MERCHANT_URLOK', 'http://some_other_url.com');
redsys.setParameter('DS_MERCHANT_URLKO', 'http://another_url.com');
redsys.setParameter('DS_MERCHANT_CONSUMERLANGUAGE', '002');
redsys.setParameter('DS_MERCHANT_PRODUCTDESCRIPTION', 'Some description');

var key = 'sq7HjrUOBfKmC576ILgskD5srU870gJ7';

var params = redsys.createMerchantParameters();
var signature = redsys.createMerchantSignature(key);

return

Test

Verify signature

javascript
// let data be the data from the notification request. then
const RedsysAPI = require('redsys-api');

var redsys = new RedsysAPI();
var encoded = data['Ds_MerchantParameters'];
var signature = data['Ds_Signature'];
var key = 'sq7HjrUOBfKmC576ILgskD5srU870gJ7';
if (redsys.checkMerchantSignatureNotif(key, encoded, signature)){
  var decoded = redsys.decodeMerchantParameters(encoded);
  // do something with the decoded data
} else {
  // do something else
}


Note that there is also a method

redsys.createMerchantSignatureNotif(key, encoded)

 available that returns base64 signature
to compare with the original, however due to some base64 differencies it is recommended to use the

redsys.checkMerchantSignatureNotif(key, encoded, signature)

 method. However if you want to use it, make sure to convert
the original signature as

Buffer.from(signature, 'base64').toString('base64');