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:credit_card: Paystack Plugin for Flutter

A Flutter plugin for making payments via Paystack Payment Gateway. Fully supports Android and iOS.

:rocket: Installation

To use this plugin, add flutter_paystack as a dependency in your pubspec.yaml file.

Then initialize the plugin preferably in the initState of your widget.

No other configuration required—the plugin works out of the box.

:heavy_dollar_sign: Making Payments

There are two ways of making payment with the plugin.

1. Checkout: This is the easy way; as the plugin handles all the processes involved in making a payment (except transaction initialization and verification which should be done from your backend).
2. Charge Card: This is a longer approach; you handle all callbacks and UI states.

1. :star2: Checkout (Recommended)

You initialize a charge object with an amount, email & accessCode or reference. Pass an accessCode only when you have initialized the transaction from your backend. Otherwise, pass a reference.

Please, note that an accessCode is required if the method is CheckoutMethod.bank or CheckoutMethod.selectable.

plugin.checkout() returns the state and details of the payment in an instance of CheckoutResponse .

It is recommended that when plugin.checkout() returns, the payment should be verified on your backend.

2. :star: Charge Card

You can choose to initialize the payment locally or via your backend.

A. Initialize Via Your Backend (Recommended)

1.a. This starts by making a HTTP POST request to paystack on your backend.

1.b If everything goes well, the initialization request returns a response with an access_code. You can then create a Charge object with the access code and card details. The charge is in turn passed to the plugin.chargeCard() function for payment:

The transaction is successful if response.status is true. Please, see the documentation of CheckoutResponse for more information.

2. Initialize Locally

Just send the payment details to plugin.chargeCard

:wrench: :nut_and_bolt: Validating Card Details

You are expected but not required to build the UI for your users to enter their payment details. For easier validation, wrap the TextFormFields inside a Form widget. Please check this article on validating forms on Flutter if this is new to you.

NOTE: You don't have to pass a card object to Charge. The plugin will call-up a UI for the user to input their card.

You can validate the fields with these methods:

card.validNumber

This method helps to perform a check if the card number is valid.

card.validCVC

Method that checks if the card security code is valid.

card.validExpiryDate

Method checks if the expiry date (combination of year and month) is valid.

card.isValid

Method to check if the card is valid. Always do this check, before charging the card.

card.getType

This method returns an estimate of the string representation of the card type(issuer).

:heavy_check_mark: Verifying Transactions

This is quite easy. Just send a HTTP GET request to https://api.paystack.co/transaction/verify/$[TRANSACTION_REFERENCE]. Please, check the official documentaion on verifying transactions.

:helicopter: Testing your implementation

Paystack provides tons of payment cards for testing.

:arrow_forward: Running Example project

For help getting started with Flutter, view the online documentation.

An example project has been provided in this plugin. Clone this repo and navigate to the example folder. Open it with a supported IDE or execute flutter run from that folder in terminal.

:pencil: Contributing, :disappointed: Issues and :bug: Bug Reports

The project is open to public contribution. Please feel very free to contribute. Experienced an issue or want to report a bug? Please, report it here. Remember to be as descriptive as possible.

:trophy: Credits

Thanks to the authors of Paystack iOS and Android SDKS. I leveraged on their work to bring this plugin to fruition.

Laravel PayTabs PT2

Description

This Package provides integration with the PayTabs payment gateway.

CONTENTS OF THIS FILE

• Introduction
• Requirements
• Installation
• Configuration
• usage

INTRODUCTION

This Package integrates PayTabs online payments into the Laravel Framework starts from version 5.8 - 8.x.

REQUIREMENTS

This Package requires no external dependencies.

INSTALLATION

• composer require paytabscom/laravel_paytabs

CONFIGURATION

• composer dump-autoload

• Go to config/app.php and in the providers array add

  Paytabscom\Laravel_paytabs\PaypageServiceProvider::class,

• Create the package config file:

  php artisan vendor:publish --tag=paytabs

• Go to config/logging.php and in the channels array add

  'PayTabs' => [ 'driver' => 'single', 'path' => storage_path('logs/paytabs.log'), 'level' => 'info', ],

• In config/paytabs.php add your merchant info.

Important Hint: you can pass your merchant info in the environment file with the same key names mentioned in the config/paytabs.php file. This value will be returned if no environment variable exists for the given key.

Usage

• create pay page

  use Paytabscom\Laravel_paytabs\Facades\paypage;
  
  $pay= paypage::sendPaymentCode('all')
         ->sendTransaction('sale')
          ->sendCart(10,1000,'test')
         ->sendCustomerDetails('Walaa Elsaeed', '[email protected]', '0101111111', 'test', 'Nasr City', 'Cairo', 'EG', '1234','100.279.20.10')
         ->sendShippingDetails('Walaa Elsaeed', '[email protected]', '0101111111', 'test', 'Nasr City', 'Cairo', 'EG', '1234','100.279.20.10')
         ->sendURLs('return_url', 'callback_url')
         ->sendLanguage('en')
         ->create_pay_page();
  return $pay;

• if you want to pass the shipping address as same as billing address you can use

  ->sendShippingDetails('same as billing')

• if you want to hide the shipping address you can use

  ->sendHideShipping(true);

• if you want to use iframe option instead of redirection you can use

  ->sendFramed(true);

• refund (you can use this function to both refund and partially refund)

  $refund = Paypage::refund('tran_ref','order_id','amount','refund_reason');
  return $refund;

• Auth

  pay= Paypage::sendPaymentCode('all')
         ->sendTransaction('Auth')
          ->sendCart(10,1000,'test')
         ->sendCustomerDetails('Walaa Elsaeed', '[email protected]', '0101111111', 'test', 'Nasr City', 'Cairo', 'EG', '1234','100.279.20.10')
         ->sendShippingDetails('Walaa Elsaeed', '[email protected]', '0101111111', 'test', 'Nasr City', 'Cairo', 'EG', '1234','100.279.20.10')
         ->sendURLs('return_url', 'callback_url')
         ->sendLanguage('en')
         ->create_pay_page();
  return $pay;

• capture (the tran_ref is the tran_ref of the Auth transaction you need to capture it.

  you can use this function to both capture and partially capture.)

   $capture = Paypage::capture('tran_ref','order_id','amount','capture description'); 
   return $capture;

• void (the tran_ref is the tran_ref of the Auth transaction you need to void it.

  you can use this function to both capture and partially capture)

  $void = Paypage::void('tran_ref','order_id','amount','void description');
  return $void

• transaction details

  $transaction = Paypage::queryTransaction('tran_ref');
  return $transaction;

• if you face any error you will find it logged in: storage/logs/paytabs.log

PAYMENT RESULT NOTIFICATION

PayTabs payment gateway provides means to notify your system with payment result once transaction processing was completed so that your system can update the transaction respective cart.

To get use of this feature do the following:

1- Defining a route (Optional)

Laravel PayTabs PT2 package comes with a default route for incoming IPN requests. The route URI is /paymentIPN , if you don't like it this URI just ignore it and define your own. Look at src/routes.php to get a clue.

2- Implementing a means to receive notification

To receive notification, do one of the following:

• While creating a pay page, passed a URL as the second argument to sendURLs method, that URL will receive an HTTP Post request with the payment result. For more about callback check: merchant dashboard > Developers > Transaction API.

• Second means is to configure IPN notification from merchant dashboard. For more details about how to configure IPN request and its different formats check: merchant dashboard > Developers > Service Types.

3- Configuring a callback method

Now, you need to configure the plugin with the class\method that will grab the payment details and perform your custom logic (updating cart in DB, notifying the customer ...etc ).

• In your website config/paytabs.php file, add the following:

  'callback' => env('paytabs_ipn_callback', new namespace\your_class() ),

• In your class add new method, it must named: updateCartByIPN

  updateCartByIPN( $requestData){
      $cartId= $requestData->getCartId();
      $status= $requestData->getStatus();
      //your logic .. updating cart in DB, notifying the customer ...etc
  }

  you can also get transaction reference number. To get the list of available properties check: _Paytabscom\Laravel_paytabs\IpnRequest class.