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PayEx SOAP API glue for Node.js. PayEx Credit Card checkout integration.

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payex-node

A node module to interact with PayEx payment API. This library only implements 'Credit Card' payment method provided by PayEx.

You will need a merchant account from PayEx in order get credentails to user for testing or production purpose. For further details on API you can visit PayEx technical docs; http://www.payexpim.com/payment-methods/credit-cards/

Installation

Requirements:

  • Node.js
  • npm (Node.js package manager)

You can install it using npm.

npm install payex-node

Usage

Detailed discription of Credit Card payment model can be found on PayEx docs reference.

Completing a transaction will involve following two steps;

  1. Initialize the payment process
  2. Complete transaction

The client has finished shopping and goes to “check out” to pay. The client makes a request to the merchant. Merchant starts the payment process.

Initialize

To initialize the payment process you'll do something like this in your code;

// Import package
const PayEx = require('payex-node');

// Provide credentials for PayEx 
const payex_config = {
  account_number: 'XXXXXXXX',
  encryption_key: 'XXXXXXXXXXXXXX',
  environment: 'development', // Optional; can be production/development, by default will be 'development'
  default_currency: 'SEK'
};

// Lets initialize payment process
const params = {
  orderID: "<orderID>",
  productNumber: "<productNumber>",
  description: "Some description of order",
  price: "<price>",
  vat: 0, // Vat is included in price, for further info. visit PayEx docs
  clientIPAddress: "<clientIPAddress>",
  returnUrl: "<returnUrl>",
  cancelUrl: "<cancelUrl>"
};

PayEx.initialize_transaction(payex_config, params)
  .then(response => {
    // Here you got your response from PayEx
    console.log(response);  
  });

// You can also use async/await style here. If you call this method inside of async method then you can do;
// const response = await PayEx.initialize_transaction(payex_config, params);

Here is what you would get in response;

  {
    code: 'OK',// OK in case of success otherwise different
    errorCode: 'OK',// OK in case of success otherwise different
    orderRef: 'XXXXXXXXXXXXXXXX',// will container order reference
    redirectUrl: 'https://confined.externaltest.payex.com/PxOrderCC.aspx?orderRef=XXXXXXXXXXXXXXXX' 
  }

You will then redirect customer to redirectUrl or this can be opened in an iFrame which uses PayEx new responsive design.

After redirecting the customers to redirectUrl, they'll enter their payment details and then PayEx will redirect them back to return_url with a parameter called orderRef appended to the query string.

Complete

The PayEx.complete_transactions takes orderRef as input which is returned with return_url as query string.

To mark transaction complete;

PayEx.complete_transactions(payex_config, {orderRef: res.orderRef})
  .then(response =>{
      // response object 
      console.log(response);
      // Here you can perform completion of your order based on the response status
    });

The response returned from PayEx.complete_transactions contains following information;

  { 
    code: 'OK', // OK in case of success otherwise different
    errorCode: 'OK', // OK in case of success otherwise different
    orderStatus: '0',// 0 for success otherwise can be 1 or 2
    orderId: 'XXX',// the orderId you sent with initialize method
    transactionStatus: 'sale', // sale/0 in case of success otherwise can be initialize/1, credit/2, authorize/3, cancel/4, failure/5, capture/6 ...
    transactionRef: '',
    errorDetails: '' 
  }

For details on what each response parameter means visit PayEx docs.

With this your checkout flow should be completed. Happy coding!

License

This package is open-sourced software licensed under MIT license.

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