Integrate UPI Payment Gateway Using SDK In Flutter
Prepare to boost the revenue of your app by using the most secure and reliable payment system. Follow this step-by-step guide and begin accepting payments with ease!
This blog will discuss the integration of UPI Payment Gateway Utilizing SDK In Flutter. We will also create a demonstration program, and explore ways to integrate the UPI payment gateways using SDK within your Flutter application.
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Introduction
In the current fast-paced world of digital providing secure and seamless payment options in the mobile application is vital to enhance user experience while driving growth for businesses. In the past, Unified Payments Interface (UPI) has revolutionized the way we pay for digital transactions in India and provides a quick and effective way for customers to transfer funds and pay payments immediately. By adding an UPI payment gateway in Flutter allows your users to perform easy transactions, whether it’s to purchase products, pay bills or for transferring money.
This detailed article will guide you through the steps of adding an UPI payment gateway in your Flutter application. No matter if you’re a veteran developer or are just beginning to get started using Flutter, this article will give you step-by-step directions and the best practices to set up UPI payments with success. After reading this article you’ll have a thorough knowledge of how to provide an effortless payment experience for your customers while maintaining the highest security standards.
Understanding UPI and its Significance
Unified Payment Interface (UPI) is a revolutionary system for payment that lets users connect multiple banks to a single mobile app. This allows seamless transfer of funds as well as transactions between individuals and companies, eliminating the requirement for traditional banking techniques.
UPI is available 24/7, which enables immediate transfers. It is gaining immense recognition due to its ease of use and security. The integration of UPI to your Flutter application allows customers to conduct transactions without hassle which improves the level of satisfaction and engagement of customers. This section will give you an in-depth review of UPI as well as its function and the reasons it’s a game changer in the field of digital payments.
Choosing the Right UPI SDK
The selection of a suitable UPI Software Development Kit (SDK) is essential. Check out SDK alternatives like Paytm, Razorpay, and BharatPe and evaluate aspects such as the complexity of integration, the quality of documentation as well as community support and compatibility with the Flutter project.
Key features of UPI Payment Gateway
Seamless Transactions
Users can pay easily within the Flutter application, which reduces the amount of friction and improves general user experience.
Wide Payment Acceptance
UPI provides a range of services, including transfers of money from one person to the other and bill payments through online stores, other. This allows UPI an adaptable and flexible application that can handle different kinds of transactions.
Real-Time Processing
UPI transactions are processed in real-time, which allows users to receive immediate confirmation and notifications about the state for their payments.
Enhanced Security
With a reliable UPI SDK, you can ensure that financial information sensitive to you is secured and encrypted providing a safe payment system for your customers.
User-Friendly Interface
Your app should offer a user-friendly interface for payments which allows users to quickly enter payment details, look over transactions, and make payments with ease.
Payment Status Updates
Users get instant updates on the effectiveness or failure in their transaction, which ensures complete transparency and reduces the risk of the risk of.
Convenient Payment Methods
Users are notified immediately about the success or failure of their transaction. This guarantees complete transparency while reducing the chance of.
QR Code Support
UPI accepts QR codes for payment, allowing customers to use QR codes to initiate transactions swiftly and easily.
Cross-Bank Compatibility
UPI facilitates transactions between multiple bank accounts, making it simple for those with accounts with different banks to seamlessly transact.
Error Handling
The UPI SDK offers robust error handling features aiding in resolving any potential problems in the payment process, as well as giving users clearly-defined error messages.
Setting Up Your Flutter Project
Start your Flutter project by either creating a new app or by modifying an existing app. Make sure you have Flutter installed, as is Dart. both installed and then configure your project with the dependencies required within pubspec.yaml. pubspec.yaml file.
Gradle Setup
In the build.gradle of the app module, add this dependency below to install the EasyUpiPayment libraries into the application.
dependencies {
implementation "dev.shreyaspatil.EasyUpiPayment:EasyUpiPayment:3.0.3"
}
debugConfig, update the minSdkVersion to 19
dependencies {
implementation "dev.shreyaspatil.EasyUpiPayment:EasyUpiPayment:3.0.3"
}
Installing the UPI SDK
- Integrate your chosen UPI SDK into your project by adding the SDK dependency to the pubspec.yaml file.
- I used easy_upi_payment for the demo project.
- Run the flutter pub command to install the dependency, making the SDK’s functionalities available in your Flutter app.
dependencies:
flutter:
sdk: flutter
easy_upi_payment:
The startPayment() method is likely designed to initiate a UPI payment transaction within a Flutter app.
ref.read(mainStateProvider.notifier).startPayment(
EasyUpiPaymentModel(
payeeVpa: payeeVpaController.text,
payeeName: payeeNameController.text,
amount: double.parse(amountController.text),
description: descriptionController.text,
),
);
We pass an object of EasyUpiPaymentModel as a parameter of the startPayment() method.
class EasyUpiPaymentModel
{
final String payeeVpa;
final String payeeName;
final String? payeeMerchantCode;
final String? transactionId;
final String? transactionRefId;
final String? description;
final double amount;
const EasyUpiPaymentModel({
required this.payeeVpa,
required this.payeeName,
required this.amount,
required this.description,
this.payeeMerchantCode,
this.transactionId,
this.transactionRefId,
});
}
Parameters Of EasyUpiPaymentModel
payeeVpa :
(Virtual Pay Address) (Virtual Pay Address): The payer’s UPI identification number, usually with the format username@upi. It is akin to an email address, but is used to make payments.
payeeName
It is your name as the person who pays or receives the money as well as the User Name.
amount :
It takes the name of the payThe amount of money to be transferred in the transaction.ee/recipient like the User Name.
transactionRefId
The reference string, or the ID is linked to the transaction for tracking and reconciliation for reconciliation purposes
transactionId
This field is utilized in Merchant Payments created by PSPs. If provided null then it uses [DateTime.now().microsecondsSinceEpoch]
payeeMerchantCode
A number that indicates the business that initiated the transaction typically used for business-specific reasons
Description
A short description or note about the payment.
TransactionDetailModel as the return from the startPayment() method.
Future startPayment(
EasyUpiPaymentModel easyUpiPaymentModel,
) {
throw UnimplementedError('startPayment() has not been implemented.');
}
TransactionDetailModel
class TransactionDetailModel {
final String? transactionId;
final String? responseCode;
final String? approvalRefNo;
final String? transactionRefId;
final String? amount;
const TransactionDetailModel({
required this.transactionId,
required this.responseCode,
required this.approvalRefNo,
required this.transactionRefId,
required this.amount,
});
}
Parameters Of TransactionDetailModel
transactionId : Unique identifier assigned the transaction.
responseCode : A code of numbers that represents the result of the transaction. Different codes are usually associated with different kinds of outcomes including failure, success or other scenarios.
approvalRefNo : A reference number that is provided by the payment processor or bank to verify the authenticity of the purchase.
transactionRefId : A reference ID that is assigned to the transaction. It could be helpful to track the transaction and for reconciliation purposes.
amount : The amount of money involved in the transaction.
We are able to modify and use these fields according to our particular requirements within our interface for users. This is why the UPI payment system has been effortlessly integrated in our Android application, which ensures an efficient and smooth user experience .