1. Pay with Bank Transfer: This payment method allows your customers to make a payment to a dynamically generated account number for the transaction.
2. Pay with USSD: This payment method allows your customers to make a payment using USSD.
3. Pay with Card: This payment method allows your customers to make payments using their card.
4. Pay with Phone Number: This payment method allows your customers to make a payment using a phone number to initialize a session.

Response Object

When the transaction is completed, Monnify will return a response object to your onComplete function.

json

{
    "amount": 100,
    "amountPaid": 100,
    "completed": true,
    "completedOn": "2022-03-31T10:53:50.000+0000",
    "createdOn": "2022-03-31T10:52:09.000+0000",
    "currencyCode": "NGN",
    "customerEmail": "[email protected]",
    "customerName": "Damilare Ogunnaike",
    "fee": 10.75,
    "metaData": {
        "deviceType": "mobile",
        "ipAddress": "127.0.0.1"
    },
    "payableAmount": 100,
    "paymentMethod": "CARD",
    "paymentReference": "MNFY|PAYREF|GENERATED|1648723909057299503",
    "paymentStatus": "PAID",
    "transactionReference": "MNFY|67|20220331115209|000063"
}

It is recommended that you always make a get transaction status call whenever a transaction is completed (or canceled) before saving the transaction on your database. Monnify will also notify you via your webhook URL of the status of any transaction.

User Cancelled Response

If a user cancels, Monnify returns the following response to your onClose function

json

{
    "authorizedAmount": 30,
    "paymentStatus": "USER_CANCELLED",
    "redirectUrl": null,
    "responseCode": "USER_CANCELLED",
    "responseMessage": "User cancelled Transaction"
}

Note: By default, all payment methods are displayed. However, if you want to control the displayed payment methods, you can do so by setting paymentMethods field in the initialization request as seen below:

json

...
  paymentMethods: [
    "CARD",
    "ACCOUNT_TRANSFER",
    "USSD",
    "PHONE_NUMBER"
  ],
  onLoadStart: () => {
    console.log("loading has started");
  },

If the paymentMethods property isn’t included, by default, all the available payment methods will be displayed to your customers. If the paymentMethods property is specified, the listed payment methods will be displayed to your customers, see the sample below:

json

...
paymentMethods: [
    "USSD",
    "PHONE_NUMBER"
],
onComplete: function(response) {
    console.log(response);
},

1. Card Payment
2. Bank Transfer
3. USSD Payment
4. Payment by Phone Number

Steps to Implementation

To your root build.gradle file add:

json

allprojects {
    repositories {
        google()
 mavenCentral() 
    }
}

To your app-level build.gradle file add:

2. Create an instance of the Monnify SDK

json

dependencies {
    // ...
    implementation "com.monnify.android-sdk:monnify-android-sdk:1.1.7"
}

1. Card Payment
2. Bank Transfer
3. USSD Payment
4. Payment by Phone Number

Steps to Implementation

Add monnify_payment_sdk as a dependency in your pubspec.yaml file.

2. Initialize the plugin

Initialize the plugin. This should be done once, preferably in the "initState" of your widget.

json

import 'package:monnify_payment_sdk/monnify_payment_sdk.dart';

class _MyAppState extends State<MyApp> {

  @override
  void initState() {
    super.initState();
    MonnifyPaymentSdk.initialize(
              'YOUR_API_KEY', 
              'CONTRACTCODE', 
              ApplicationMode.TEST
    )
  }
}

3. Initialize payment

Create an object of the Transaction class and pass it to the initializePayment function.

json

Future<void> initPayment() async {
    TransactionResponse transactionResponse =
          await MonnifyPaymentSdk.initializePayment(Transaction(
              2000,
              "NGN",
              "Customer Name",
              "[email protected]",
              "PAYMENT_REF",
              "Description of payment",
              metaData: {
                "ip": "196.168.45.22",
                "device": "mobile_flutter"
                // any other info
              },
              paymentMethods: [PaymentMethod.CARD, PaymentMethod.ACCOUNT_TRANSFER],
              incomeSplitConfig: [
                SubAccountDetails("MFY_SUB_319452883968", 10.5, 500, true),
                SubAccountDetails("MFY_SUB_259811283666", 10.5, 1000, false)]
          )
    );
}

1. Card Payment
2. Bank Transfer
3. USSD Payment
4. Payment by Phone Number

How to Implementation

1. Adding the iOS SDK to your project via CocoaPodsMonnify iOS SDK is available through [CocoaPods](https://cocoapods.org). To install it, simply add the following line to your Podfile:
   json

   

   pod 'MonnifyiOSSDK'

2. Access an instance of the Monnify SDK Monnify iOS SDK is available through [CocoaPods](https://cocoapods.org). To install it, simply add the following line to your Podfile:
   json

   

   let monnify = Monnify.shared

3. Set your merchant API key and contract code.This should be done in your `AppDelegate.swift` file. This should only be done once in the entire application.
   This can be a TEST or LIVE. The TEST mode works on a sandbox environment and payment can be simulated [here](https://websim.sdk.monnify.com/#/bankingapp).
   Remember to switch to ApplicationMode.live when generating live builds for your application on production.
   json

   

   let apiKey = "MK_PROD_XXXXXXXX"
   let contractCode = "1234567890"
   let mode = ApplicationMode.test
   
   monnify.setApplicationMode(applicationMode: mode)
   monnify.setApiKey(apiKey: apiKey)
   monnify.setContractCode(contractCode: contractCode)

4. Specify the transaction parameters as shown below:
   
   json

   

   let amount = Decimal(100)
   let paymentRef = "ASDF123454321"
   
   let parameter = TransactionParameters(amount: amount,
                                         currencyCode: "NGN",
                                         paymentReference: paymentRef,
                                         customerEmail: "[email protected]",
                                         customerName: "John Doe" ,
                                         customerMobileNumber: "08000000000",
                                         paymentDescription: "Payment Description.",
                                         incomeSplitConfig: [],
                                         metaData: ["deviceType":"ios", "userId":"user314285714"],
                                         paymentMethods: [PaymentMethod.card, PaymentMethod.accountTransfer],
                                         tokeniseCard: false)

5. Launch the payment gateway, perhaps when the user clicks on a 'Pay' button.
   json

   

   let amount = Decimal(100)
   let paymentRef = "ASDF123454321"
   
   let parameter = TransactionParameters(amount: amount,
                                         currencyCode: "NGN",
                                         paymentReference: paymentRef,
                                         customerEmail: "[email protected]",
                                         customerName: "John Doe" ,
                                         customerMobileNumber: "08000000000",
                                         paymentDescription: "Payment Description.",
                                         incomeSplitConfig: [],
                                         metaData: ["deviceType":"ios", "userId":"user314285714"],
                                         paymentMethods: [PaymentMethod.card, PaymentMethod.accountTransfer],
                                         tokeniseCard: false)