westpac-payway/index.js

Process payments via Westpac PayWay API

var https = require('https');
var qs = require('querystring');
var fs = require('fs');
var _ = require('underscore');

var test = {
  number: '4564710000000004',
  expiryYear: '19',
  expiryMonth: '02',
  cvn:'847',
  merchant: 'TEST'
};

var PayWay = function(options) {

  this.ca = options.ca;
  this.eci = options.eci || 'SSL';
  this.merchant = options.merchant;
  this.username = options.username;
  this.password = options.password;
  this.passphrase = options.passphrase;
  this.certificate = options.certificate;
  this.testing = options.testing || false;
  this.currency = options.currency || 'AUD';

  this.defaults = {
    host: 'ccapi.client.qvalent.com',
    path: '/payway/ccapi',
    port: 443,
    method: 'POST',
    ca: [this.ca],
    pfx: this.certificate,
    passphrase: this.passphrase,
    agent: false
  };
};

PayWay.prototype.purchase = function(name, number, expiryMonth, expiryYear, cvn, amount, reference, callback) {

  var options = _.clone(this.defaults);

  var params = {
    'order.type': 'capture',
    'customer.username': this.username,
    'customer.password': this.password,
    'customer.merchant': this.testing ? test.merchant : this.merchant,
    'card.PAN': this.testing ? test.number : number,
    'card.CVN': this.testing ? test.cvn : cvn,
    'card.expiryYear': this.testing ? test.expiryYear : expiryYear,
    'card.expiryMonth': this.testing ? test.expiryMonth : expiryMonth,
    'card.cardHolderName': name,
    'order.amount': amount,
    'customer.orderNumber': reference,
    'card.currency': this.currency,
    'order.ECI': this.eci
  };

  this.request(options, params, callback);
};

PayWay.prototype.request = function(options, params, callback) {

  var result = '';
  var data = qs.stringify(params);
  var parseResult = this.parse;

  options.headers = {
    'Content-Type': 'application/x-www-form-urlencoded',
    'Content-Length': data.length
  };

  var request = https.request(options, function(res) {
    res.on('data', function(chunk) {
      result += chunk;
    });

    res.on('end', function() {
      if(res.statusCode !== 200) {
        var err = new Error('Error communicating with the payment gateway.');
        console.log('here');
        return callback(err);
      }
      return parseResult(result, callback);
    });

  });

  request.on('error', function(err) {
    return callback(err);
  });

  request.write(data);
  request.end();
};

PayWay.prototype.parse = function(data, callback) {
  var parsed = qs.parse(data);

  var result = {
    approved: parsed['response.summaryCode'] === '0',
    code: parsed['response.responseCode'],
    text: parsed['response.text'],
    receipt: parsed['response.receiptNo'],
    error: parsed['response.summaryCode'] === '2'
  };

  return callback(null, result);
};

exports.createClient = function(options) {
  return new PayWay(options);
};