Checkout SDK for Web

Introduction

It's a simple way to integrate goSell with a few client side code.

goSell Checkout includes two different integrations based on your preferences:

  1. goSell LightBox: open a light box / modal dialog inside your store.
  2. goSell Payment Page: open goSell payment gateway directly without server side code or making any REST API Requests.

The integration caters to diverse programming preferences with support for two languages: React.js and Vanilla.js. This flexibility ensures that merchants can choose the integration method that best suits their technical requirements.

Setup your Tap Account

If you haven't done so already, please register your business in Tap Payments in order to setup your own account and required API keys to start the goSellCheckout integration.

Requirements

To integrate the Tap Payments GoSellCheckout, ensure your development environment meets the following prerequisites:

  • Upgrades mobx to version 6. ( Fixes some bugs in the previous versions )
  • If you're using lower version of mobx 6, please integrate with goSellCheckout v1.6.3 instead.

goSell Installation

You can integrate with goSell by:

  • JavaScript Library, which allows front end developers to setup the payment gateway on their stores easily by adding a very basic snippet of JavaScript using the following script tag:
<script type="text/javascript" src="https://goSellJSLib.b-cdn.net/v2.0.4/js/gosell.js"></script>

Take care, the configurations structure has been changed in this version

📘

Use the JavaScript Library in server side environment, otherwise the credit card section will not work.

  • Install goSell package from NPM for who uses React JS framework. by running the following command in the terminal:
npm i @tap-payments/gosell

import the library inside your code:

import { GoSell } from "@tap-payments/gosell";

goSell Usage

The JavaScript Library allows you to use any HTML element or JavaScript event to trigger Checkout. You will just need basic JavaScript skills to integrate with goSell.

When your page loads, you should define the configurations of your payment gateway by creating a handler object using goSell.config(). You can then call goSell.openLightBox() or goSell.openPaymentPage() on click event, to show the transaction result in your redirect page, call goSell.showResult().

goSell General Configuration

  • Gateway [Object]*: It's a required field for the JS library. It includes the general settings of the payment gateway:
property name Type Status Default value Description
publicKey string required Your goSell public key.
language string optional 'en' Define the language of payment gateway. The supported languages are 'en' & 'ar'.
contactInfo boolean optional true Show the contact info (phone numbers, social media links .. etc) of the merchant in goSell gateway.
supportedCurrencies string or array of currencies using ISO code optional 'all' there's 3 different values for this property:

1.'all': which will display all goSell supported currencies.

2.'gcc': the currencies of Gulf Cooperation Council.

3. Array of strings: specify a custom list of the following supported currencies by goSell:
["KWD", "BHD", "SAR", "AED", "OMR", "QAR", "EGP", "GBP", "USD", "EUR"]
supportedPaymentMethods string or array of required payment methods optional 'all' there's 2 different values for this property:

1.'all': shows all activated payment methods in your account.

2. Array of strings: specify a custom list of your activated payment methods in your account. Available supported payment options in tap: [ "KNET", "AMERICAN_EXPRESS", "BENEFIT", "MADA","VISA","MASTERCARD", "FAWRY", "OMANNET","APPLE_PAY"]. Please note, that Apple pay is not supported in popup mode.
saveCardOption boolean optional true Enable or disable the saving card option on the credit/debit cards section in goSell payment gateway, if saving cards feature is enabled in your goSell account.
customerCards boolean optional true Allow/Disallow your customers to pay by their saved cards on goSell Gateway. If you enabled this property, your customers will able to see their saved cards and use them security.
notifications string optional 'standard' Define your preferences, if you like to use your own component or HTML element to show notifications or use goSell standard notifications bar.
backgroundImg object optional Define a background image for the goSell JS library page.
callback function optional Define an action or a callback after each transaction. When the payment process is being executed, the library will return the transaction result JSON to the callback function.
onClose function optional Define an action or piece of code to be executed on the close event.
labels object optional {
cardNumber:"Card Number",
expirationDate:"MM/YY",
cvv:"CVV",
cardHolder:"Name on Card",
actionButton:"Pay"
}
Define custom titles for input boxes inside credit/debit cards section.
style object optional {
base: {
color: '#535353',
lineHeight: '18px',
fontFamily: 'sans-serif',
fontSmoothing: 'antialiased',
fontSize: '16px',
'::placeholder': {
color: 'rgba(0, 0, 0, 0.26)',
fontSize:'15px'
}
},
invalid: {
color: 'red',
iconColor: '#fa755a '
}
}
Define custom style for input boxes inside credit/debit cards section.
  • Customer [Object]*: It's a required field for the JS library. Includes the customer details, it's required for charge, authorize & saveCard modes only.
property name Type Status Default value Description
id string required, if the customer details is not defined null The id of your customer
first_name string required, if the customer id is not defined The first name of your customer
middle_name string optional The middle name of your customer
last_name string optional The last name of your customer
email string required, if the customer id is not defined Customer's email address
phone object required, if the customer id is not defined Customer's phone number.
Example:
{
country_code: "965",
number: "99999999"
}
  • Order [Object]*: It's a required field for the JS library. Includes the order details, it's required for charge, authorize modes only.
property name Type Status Default value Description
amount string required The total amount of the order.
currency string required The ISO currency code of the total amount.
items Array optional null Items details in the following format:

items: [
{
id: 0,
name: "Item ",
description: "Item Desc 0",
quantity: 1,
amount_per_unit: 0,
total_amount: 10,
},
]
shipping Object optional null Shipping details in the following fomrat:

shipping: {
"amount": 1,
"currency": "KWD",
"description": "test",
"provider": "ARAMEX",
"service": "test"
}
taxes Array optional null taxes details in the following fomrat:

taxes: [
{
"description": "test",
"name": "VAT",
"rate": {
"type": "F",
"value": 1
},
},
]
  • Transaction [object]: It's a required field for the JS library. Includes the transaction mode and it's configurations.
property name Type Status Default value Description
mode string required It can be 'charge', 'authorize', 'save_card' or 'token'
charge object required if the mode = 'charge' includes the merchant's configurations for charge mode
authorize object required if the mode = 'authorize' includes the merchant's configurations for authorize mode

goSell Transaction Modes

You have to select one of the following modes:

  1. Charge
  2. Authorize
  3. Save_Card: Save credit/debit cards in goSell gateway. There's not configurations for this mode.
  4. Token: Used to generate card token. There's not configurations for this mode.

Charge [Object]

property name Type Status Default value Description
saveCard boolean optional Payer can save the credit for future purpose. Customer phone number is required to save the card, values can be one of (true or false). In order to use this service, please contact our Team to get the access.
threeDSecure boolean optional The 3D Secure request status for a particular charge, values can be one of (true or false)
description string optional Charge Description.
statement_descriptor string optional Payer Statement Descriptor.
reference object optional {
transaction: "txn_0001",
order: "ord_0001"
}
Transaction & order numbers of your reference.
destinations object optional It's used to transfer funds from one business to another with in tap. add the following block in charge or authorize object with the destination details:

destinations: {
destination: [
{
id: "0000000",
amount: 00,
currency: "KWD",
},
],
}
metadata string optional Set of key/value pairs that you can attach to an object. It can be useful for storing additional information about the object in a structured format. Individual keys can be unset by posting an empty value to them. All keys can be unset by posting an empty value to metadata.
receipt object optional {
email: false,
sms: true
}
Whether receipt email or sms to be send to the payer or not
redirect string required After payment completed, payer will be redirected to this url (KNET and 3D secure charge request required, Redirect url)
post string required After payment completed, goSell Gateway will post the charge response to the this url

Authorize [Object]

property name Type Status Default value Description
auto object required {
type: "VOID",
time: 100
}
You can create CAPTURE or VOID successful authorized transactions by goSell after a specified time period, You can use the auto object in the authorize request. Time should be defined in hours, Minimum 1 hour and Maximum 168 hours.
saveCard boolean optional Payer can save the credit for future purpose. Customer phone number is required to save the card, values can be one of (true or false). In order to use this service, please contact our Team to get the access.
threeDSecure boolean optional The 3D Secure request status for a particular charge, values can be one of (true or false)
description string optional Charge Description.
statement_descriptor string optional Payer Statement Descriptor.
reference object optional {
transaction: "txn_0001",
order: "ord_0001"
}
Transaction & order numbers of your reference.
destinations object optional It's used to transfer funds from one business to another with in tap. add the following block in charge or authorize object with the destination details:

destinations: {
destination: [
{
id: "0000000",
amount: 00,
currency: "KWD",
},
],
}
metadata string optional Set of key/value pairs that you can attach to an object. It can be useful for storing additional information about the object in a structured format. Individual keys can be unset by posting an empty value to them. All keys can be unset by posting an empty value to metadata.
receipt object optional {
email: false,
sms: true
}
Whether receipt email or sms to be send to the payer or not
redirect string required After payment completed, payer will be redirected to this url (KNET and 3D secure charge request required, Redirect url)
post string required After payment completed, goSell Gateway will post the charge response to the this url

goSell Show Result Configurations

callback [Function]:

It's optional field in goSell.showResult() which define an action or a callback after showing the transaction result in redirect page. It will return the transaction result in a JSON.

goSell Examples

Vanilla Javascript Example:

Example with transaction mode charge:

<html>
<head>
    <title>goSell Demo</title>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0" />
    <link rel="shortcut icon" href="https://goSellJSLib.b-cdn.net/v2.0.4/imgs/tap-favicon.ico" />
    <link href="https://goSellJSLib.b-cdn.net/v2.0.4/css/gosell.css" rel="stylesheet" />
</head>
<body>
    <script type="text/javascript" src="https://goSellJSLib.b-cdn.net/v2.0.4/js/gosell.js"></script>

    <div id="root"></div>
    <button id="openLightBox" onclick="goSell.openLightBox()">open goSell LightBox</button>
    <button id="openPage" onclick="goSell.openPaymentPage()">open goSell Page</button>

    <script>

    goSell.config({
      containerID:"root",
      gateway:{
        publicKey:"pk_test_Vlk842B1EA7tDN5QbrfGjYzh",
        language:"en",
        contactInfo:true,
        supportedCurrencies:"all",
        supportedPaymentMethods: "all",
        saveCardOption:false,
        customerCards: true,
        notifications:'standard',
        callback:(response) => {
            console.log('response', response);
        },
        onClose: () => {
            console.log("onClose Event");
        },
        backgroundImg: {
          url: 'imgURL',
          opacity: '0.5'
        },
        labels:{
            cardNumber:"Card Number",
            expirationDate:"MM/YY",
            cvv:"CVV",
            cardHolder:"Name on Card",
            actionButton:"Pay"
        },
        style: {
            base: {
              color: '#535353',
              lineHeight: '18px',
              fontFamily: 'sans-serif',
              fontSmoothing: 'antialiased',
              fontSize: '16px',
              '::placeholder': {
                color: 'rgba(0, 0, 0, 0.26)',
                fontSize:'15px'
              }
            },
            invalid: {
              color: 'red',
              iconColor: '#fa755a '
            }
        }
      },
      customer:{
        id:"cus_m1QB0320181401l1LD1812485",
        first_name: "First Name",
        middle_name: "Middle Name",
        last_name: "Last Name",
        email: "demo@email.com",
        phone: {
            country_code: "965",
            number: "99999999"
        }
      },
      order:{
        amount: 100,
        currency:"KWD",
        items:[{
          id:1,
          name:'item1',
          description: 'item1 desc',
          quantity:'x1',
          amount_per_unit:'KD00.000',
          discount: {
            type: 'P',
            value: '10%'
          },
          total_amount: 'KD000.000'
        },
        {
          id:2,
          name:'item2',
          description: 'item2 desc',
          quantity:'x2',
          amount_per_unit:'KD00.000',
          discount: {
            type: 'P',
            value: '10%'
          },
          total_amount: 'KD000.000'
        },
        {
          id:3,
          name:'item3',
          description: 'item3 desc',
          quantity:'x1',
          amount_per_unit:'KD00.000',
          discount: {
            type: 'P',
            value: '10%'
          },
          total_amount: 'KD000.000'
        }],
        shipping:null,
        taxes: null
      },
     transaction:{
       mode: 'charge',
       charge:{
          saveCard: false,
          threeDSecure: true,
          description: "Test Description",
          statement_descriptor: "Sample",
          reference:{
            transaction: "txn_0001",
            order: "ord_0001"
          },
          metadata:{},
          receipt:{
            email: false,
            sms: true
          },
          redirect: "http://localhost/redirect.html",
          post: null,
        }
     }
    });

    </script>

</body>
</html>

Redirect page defined in charge configurations redirect.html:

<html>
  <head>
    <title>Show Result Demo</title>
    <meta charset="utf-8" />
    <meta
      name="viewport"
      content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0"
    />

    <link
      rel="shortcut icon"
      href="https://goSellJSLib.b-cdn.net/v2.0.4/imgs/tap-favicon.ico"
    />
    <link
      href="https://goSellJSLib.b-cdn.net/v2.0.4/css/gosell.css"
      rel="stylesheet"
    />
  </head>
  <body>

    <script
      type="text/javascript"
      src="https://goSellJSLib.b-cdn.net/v2.0.4/js/gosell.js"
    ></script>

    <div id="root"></div>
    <script>
       goSell.showResult({
           callback: response => {
           console.log("callback", response);
         }
      });
    </script>
  </body>
</html>

React JS Example:

import React, { Component }  from "react";
import { GoSell } from "@tap-payments/gosell";

class GoSellDemo extends Component {

  constructor(props){
    super(props);
  }

  callbackFunc(response){
    console.log(response);
  }

  render() {

    return (
      <div className="App">

      <button onClick={() => GoSell.openLightBox()}>open goSell LightBox</button>
      <button onClick={() => GoSell.openPaymentPage()}>open goSell Page</button>

        <GoSell
           gateway={{
             publicKey:"pk_test_Vlk842B1EA7tDN5QbrfGjYzh",
             language:"en",
             contactInfo:true,
             supportedCurrencies:"all",
             supportedPaymentMethods:"all",
             saveCardOption:true,
             customerCards: true,
             notifications:'standard',
             backgroundImg: {
              url: 'imgURL',
              opacity: '0.5'
            },
             callback: this.callbackFunc,
             labels:{
                 cardNumber:"Card Number",
                 expirationDate:"MM/YY",
                 cvv:"CVV",
                 cardHolder:"Name on Card",
                 actionButton:"Pay"
             },
             style: {
                 base: {
                   color: '#535353',
                   lineHeight: '18px',
                   fontFamily: 'sans-serif',
                   fontSmoothing: 'antialiased',
                   fontSize: '16px',
                   '::placeholder': {
                     color: 'rgba(0, 0, 0, 0.26)',
                     fontSize:'15px'
                   }
                 },
                 invalid: {
                   color: 'red',
                   iconColor: '#fa755a '
                 }
             }
           }}
           customer={{
             first_name: "First Name",
             middle_name: "Middle Name",
             last_name: "Last Name",
             email: "demo@email.com",
             phone: {
                 country_code: "965",
                 number: "99999999"
             }
           }}
           order={{
             amount: 100,
             currency:"KWD",
             items:[{
               id:1,
               name:'item1',
               description: 'item1 desc',
               quantity:'x1',
               amount_per_unit:'KD00.000',
               discount: {
                 type: 'P',
                 value: '10%'
               },
               total_amount: 'KD000.000'
             },
             {
               id:2,
               name:'item2',
               description: 'item2 desc',
               quantity:'x2',
               amount_per_unit:'KD00.000',
               discount: {
                 type: 'P',
                 value: '10%'
               },
               total_amount: 'KD000.000'
             },
             {
               id:3,
               name:'item3',
               description: 'item3 desc',
               quantity:'x1',
               amount_per_unit:'KD00.000',
               discount: {
                 type: 'P',
                 value: '10%'
               },
               total_amount: 'KD000.000'
             }],
             shipping:null,
             taxes: null
           }}
           transaction={
             mode: 'charge',
             charge:{
              saveCard: false,
              threeDSecure: true,
              description: "Test Description",
              statement_descriptor: "Sample",
              reference:{
                transaction: "txn_0001",
                order: "ord_0001"
              },
              metadata:{},
              receipt:{
                email: false,
                sms: true
              },
              redirect: "REDIRECT_URL",
              post: null,
            }}
           />
      </div>
    );
  }
}

export default GoSellDemo;

Redirect page defined in charge configurations redirect.js:

import React, { Component } from "react";
import { GoSell } from "@tap-payments/gosell";

class Redirect extends Component {
  componentDidMount() {
    GoSell.showResult({
      callback: (response) => {
        console.log("callback", response);
      },
    });
  }

  render() {
    return (
      <div className="App">
        <GoSell />
      </div>
    );
  }
}

export default Redirect;

OR

import React, { Component }  from "react";
import { GoSell } from "@tap-payments/gosell";

class Redirect extends Component {

 render() {
    return (
      <div className="App">
        <GoSell
          gateway={{
            callback: (response) => {
              console.log("callback", response);
            },
          }}
        />
      </div>
    );
  }
}

export default Redirect;

What’s Next