Vanilla Pay International Dart Package

With this module, developers can effortlessly integrate Vanilla Pay International's payment service into their cross-platform Flutter applications.

Introduction

The Vanilla Pay International Dart package provides a convenient way to integrate Vanilla Pay International services into your Flutter applications (Android & iOs). It allows you to generate tokens, initialize payments, check transaction statuses, and validate data authenticity with ease.

Installation

To use this package, add vanilla_pay_international as a dependency in your pubspec.yaml file:

dependencies:
  vanilla_pay_international: ^1.0.3

Then, run flutter pub get to install the package.

Usage

Initialize Payment Manager

To use the Vanilla Pay International services, you need to initialize a VanillaPay instance:

import 'package:vanilla_pay_international/vanilla_pay_international.dart';

void main() {
  VanillaPay paymentManager = VanillaPay(
    env: 'PROD',
    vpiVersion: 'vpi_version',
    clientId: 'your_client_id',
    clientSecret: 'your_client_secret',
    keySecret: 'your_key_secret',
  );
}

Generate Token

Use the generateToken() method to generate a token, which remains valid for 20 minutes:

TokenResponse? tokenResponse = await paymentManager.generateToken();

Response (tokenResponse):

{
    "CodeRetour": 200,
    "DescRetour": "Génération TOKEN.",
    "DetailRetour": "",
    "Data": {
    	"Token": "Bearer <token>"
 	}
}

Initialize Payment

Initiate a payment process using the initializePayment() method:

• token: The generated token.
• montant: The amount of the transaction.
• devise: The currency of the transaction (e.g EUR).
• reference: The pro external reference.
• panier: The identifier for the transaction.
• notifUrl: URL called when the payment is finished.
• redirectUrl: URL to redirect the customer after completing the payment.

InitPaymentResponse? initPaymentResponse = await paymentManager.initializePayment(
  token,
  montant,
  devise,
  reference,
  panier,
  notifUrl,
  redirectUrl,
);

Response (initPaymentResponse):

{
    "CodeRetour": 200,
    "DescRetour": "Génération lien de paiement.",
    "DetailRetour": "",
    "Data": {
        "url": "https://link.com"
    }
}

Check Transaction Status

Retrieve the status of a transaction using the getTransactionsStatus() method:

• token: The generated token.
• paymentLink: The payment link.

TransactionStatusResponse? transactionStatusResponse = await paymentManager.checkTransactionStatus(
  token,
  paymentLink,
);

Response (status):

{
    "CodeRetour": 200,
    "DescRetour": "Transaction status.",
    "DetailRetour": "",
    "Data": {
        "reference_VPI": "VPI23011201010101",
	      "panier" : "panier123",
        "reference": "ABC-1234",
        "remarque": "BLABLA",
        "etat": "SUCCESS"
    }
}

Validate Data Authenticity

Validate the authenticity of provided data using the validateDataAuthenticity() method:

• vpiSignature: The signature extracted from the headers.
• body: The data to be hashed and compared against the signature.

bool isAuthentic = paymentManager.validateDataAuthenticity(vpiSignature, body);

Contributions and Issues

Contributions and bug reports are welcome! Please feel free to submit a pull request or open an issue on the GitHub repository: Here.

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