README

A laravel package for Interswitch

Installation

PHP ^7.4|^8.0, and Composer are required.

To get the latest version of Laravel Interswitch, simply require it

composer require ogunsakin01/laravel-interswitch

Configuration

You can publish the configuration file using this command:

php artisan vendor:publish

Then select ogunsakin01/laravel-interswitch

A configuration-file named interswitch.php with some sensible defaults will be placed in your config directory:

<?php

return [
    /**
     *  Your payment environment
     *  Accepts LIVE or TEST
     *
     */

    'env' => env('INTERSWITCH_ENV', 'TEST'),

    'currency' => 566,

    /**
     *  Interswitch payment gateway of choice
     *  Accepts WEBPAY or PAYDIRECT
     *
     */

    'gateway' => env('INTERSWITCH_GATEWAY'),

    /**
     *  Redirect URL
     *  This is the URL Interswitch redirects you to
     *  **PLEASE DO NOT CHANGE**  `The cost of using magic will be your soul`
     */

    'systemRedirectUrl' => 'interswitch-pay-redirect',


    /**
     *  This is the redirect url defined by you in your environment file
     *
     */

    'redirectUrl' => env('INTERSWITCH_REDIRECT_URL'),

    /**
     *  Live credentials as defined in your environment variables
     *
     */


    'live' => [
        'requestUrl' => env('INTERSWITCH_REQUEST_URL'),
        'queryUrl' => env('INTERSWITCH_QUERY_URL'),
        'macKey' => env('INTERSWITCH_MAC_KEY'),
        'itemId' => env('INTERSWITCH_ITEM_ID'),
        'productId' => env('INTERSWITCH_PRODUCT_ID'),
    ],

    /**
     *  This are the default test credentials of interswitch for both gateways
     *
     */

    'test' => [
        'webPay' => [
            'requestUrl' => 'https://sandbox.interswitchng.com/webpay/pay',
            'queryUrl' => 'https://sandbox.interswitchng.com/webpay/api/v1/gettransaction.json',
            'macKey' => 'D3D1D05AFE42AD50818167EAC73C109168A0F108F32645C8B59E897FA930DA44F9230910DAC9E20641823799A107A02068F7BC0F4CC41D2952E249552255710F',
            'itemId' => 101,
            'productId' => 6205,
        ],
        'payDirect' => [
            'requestUrl' => 'https://sandbox.interswitchng.com/collections/w/pay',
            'queryUrl' => 'https://sandbox.interswitchng.com/collections/api/v1/gettransaction.json',
            'macKey' => '',
            'itemId' => 101,
            'productId' => 1706,
        ],
    ],

];

Open your .env file and add the following

INTERSWITCH_ENV=TEST
INTERSWITCH_GATEWAY=WEBPAY
INTERSWITCH_REDIRECT_URL=http://localhost:8000/payment-confirmation/
INTERSWITCH_REQUEST_URL=
INTERSWITCH_QUERY_URL=
INTERSWITCH_MAC_KEY=
INTERSWITCH_ITEM_ID=
INTERSWITCH_PRODUCT_ID=

INTERSWITCH_ENV= can be set to either LIVE or TEST. INTERSWITCH_GATEWAY= can be set tot either WEBPAY or PAYDIRECT. The redirect URL must be a get url declared in your route where you wish to redirect to when a payment process is complete. Make sure this route is defined in your web.php as a GET route. Make sure to replace the other env variables withe the details you received from Interswitch.

While still in your env file, make sure you set up your database environment

DB_CONNECTION=mysql
DB_HOST=127.0.0.1
DB_PORT=3306
DB_DATABASE=laravel
DB_USERNAME=root
DB_PASSWORD=

Replace the variables with your database connection variables the run php artisan migrate. When the migration is complete. Return to your env file and set up your mailing environment

MAIL_DRIVER=smtp
MAIL_HOST=smtp.mailtrap.io
MAIL_PORT=2525
MAIL_USERNAME=null
MAIL_PASSWORD=null
MAIL_ENCRYPTION=null
MAIL_FROM_ADDRESS=null
MAIL_FROM_NAME="${APP_NAME}"

When this is done, then you can proceed to using this package.

Usage

Interswitch requires you to follow some specific steps when implementing their payment gateway

1 Initiate transaction

This initiate transaction sends a post request to the payment gateway and redirects to the payment page

2 Customer Prepayment Notification Email

You are meant to send a prepayment notification email to your customers informaing them about the transaction they are about to make.

3 Store Transaction Details

You are suppose to store all transactions in db even before they are completed

4 Payment Confirmation Notification Email

You must send a payment confirmation email to your customer stating whether the transaction was successful or not and stating your reasons.

5 Transaction Logs Table and Requery

Interswitch requires that you have a page where all transactions are displayed and that you have a requery button which can be used to reconfirm the status of the transaction.

Phew, life hard. Writing that out alone is exhausting, I can imagine how implementing it will feel like. Don't worry, I know exactly how it feels. Well, on this package, all you have to do is add this on your payment page.

<form method="post" action="{{route('InterswitchPay')}}">
  <input type="hidden" name="customer_name" value="John Doe" required />
  <input type="hidden" name="customer_id" value="1" required/>
  <input type="email" name="customer_email" required value="" placeholder="a valid email" />
  <input type="number" min="0" name="amount" required value=""/>
  <button type="Submit">Pay</button>
</form>

If you wish to use a transaction reference defined by you, simply add <input type="hidden" name="reference" value="87YYUIJIJ" /> to the filed you are sending .

That's it, when the pay button is clicked, all the dirty work is done for you behind the scene. When the payment is complete, you will be redirected to the INTERSWITCH_REDIRECT_URL= you set in your .env with the following query parameters

[
  "id" => "11"
  "customer_id" => "1"
  "customer_name" => "Ogunsakin Damilola"
  "customer_email" => "ogunsakin191@gmail.com"
  "environment" => "TEST"
  "gateway" => "WEBPAY"
  "reference" => "5E5C880D78133"
  "amount" => "90000"
  "response_code" => "Z6"
  "response_description" => "Customer cancellation"
  "created_at" => "2020-03-02 04:14:08"
  "updated_at" => "2020-03-02 04:14:14"
]

To view your transaction logs, go to this route

url(interswitch-transactions-log);
OR
route('InterswitchTransactionsLog');

That's it, you are good to go

Now that you are here

Thank you for taking your time with my package.