flutter_payunit: <latest_version>

flutter pub get flutter_payunit

import 'package:flutter_payunit/flutter_payunit.dart';

PayUnitButton(
 
	apiUsername: "<Your apiuser>",
 
	apiPassword: "<Your apiPassword>",
 
	apiKey: "<Your apiKey>",
 
	mode: 'live', // live or sandbox
 
	paymentCountry: '<Transaction country>'
 
	notifyUrl: "<Your notification url>",
 
	returnUrl: "<Your return url>",
 
	totalAmount: "<Your transaction amount>",
 
	currency:"XAF",
 
	buttonTextColor: Colors.white,
 
	buttonText: "Pay now",
 
	width: double.infinity
 
	color: Colors.orange
 
	actionAfterProccess: (transactionId, transactionStatus, phoneNumber, transactionGateway) {
		
		// a callback that has transactionId, transactionStatus, phoneNumber and transactionGateway
 
		if(transactionStatus == "SUCCESS"){
			// Handle successful transaction             
		}else if(transactionStatus == "FAILED"){
			// Handle failed transaction             
		}
 
	},
 
	onPaymentInitiated: (transactionId, phoneNumber, transactionGateway) {
        // In case user closes the app before transaction status is gotten,
        // store transaction details locally and constantly check status anywhere from app
        // For more info on getting transaction status, check: https://developer.payunit.net/rest-api/get-payment-status
        // An example function to get transaction status is provided below
	},
 
), 

// USe this function to check transaction status in background when user closes app.
  Future<Map<String, dynamic>> getTransactionStatus({
    required String xApiKey,
    required String apiUserName,
    required String apiPassword,
    required String mode,
    required String transactionId,
  }) async {
    final dioClient = Dio(
      BaseOptions(
      baseUrl: "https://gateway.payunit.net",
      connectTimeout: const Duration(seconds: 15),
      contentType: 'application/json',
      ),
    );
    final token = base64.encode(utf8.encode('$apiUserName:$apiPassword'));
    final response = await dioClient.get(
      '/api/gateway/paymentstatus/$transactionId',
      options: Options(
        headers: {
          'Authorization': 'Basic $token',
          'x-api-key': xApiKey,
          'mode': mode,
        },
      ),
    );
    // final status = response.data['data']['transaction_status'];
    return response.data;
  }