Flutter Razorpay Plugin

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A flutter plugin for razorpay integration for Web , Android and iOS.

Live Demo

Try out the live web demo at: https://razorpayy.web.app/

demoApp demoApp

demoApp

pub package

Getting Started

This flutter plugin is a wrapper around our Android and iOS SDKs.

The following documentation is only focused on the wrapper around our native Android and iOS SDKs. To know more about our SDKs and how to link them within the projects, refer to the following documentation:

Android: https://razorpay.com/docs/checkout/android/

iOS: https://razorpay.com/docs/ios/

Web: dd the following script to your web/index.html file in the head tag:

<script src="https://checkout.razorpay.com/v1/checkout.js"></script>

To know more about Razorpay payment flow and steps involved, read up here: https://razorpay.com/docs/

Prerequisites

  • Learn about the Razorpay Payment Flow.
  • Sign up for a Razorpay Account and generate the API Keys from the Razorpay Dashboard. Using the Test keys helps simulate a sandbox environment. No actual monetary transaction happens when using the Test keys. Use Live keys once you have thoroughly tested the application and are ready to go live.

Installation

This plugin is available on Pub: https://pub.dev/packages/razorpay_flutter

Add this to dependencies in your app's pubspec.yaml

razorpay_web: ^1.3.2

Note for Android: Make sure that the minimum API level for your app is 19 or higher.

Proguard rules

If you are using proguard for your builds, you need to add following lines to proguard files

-keepattributes *Annotation*
-dontwarn com.razorpay.**
-keep class com.razorpay.** {*;}
-optimizations !method/inlining/
-keepclasseswithmembers class * {
  public void onPayment*(...);
}

Follow this for more details.

Note for iOS: Make sure that the minimum deployment target for your app is iOS 10.0 or higher. Also, don't forget to enable bitcode for your project.

Run flutter packages get in the root directory of your app.

Usage

Sample code to integrate can be found in example/lib/main.dart.

Import package

import 'package:razorpay_web/razorpay_web.dart';

Create Razorpay instance

_razorpay = Razorpay();

Attach event listeners

The plugin uses event-based communication, and emits events when payment fails or succeeds.

The event names are exposed via the constants EVENT_PAYMENT_SUCCESS, EVENT_PAYMENT_ERROR and EVENT_EXTERNAL_WALLET from the Razorpay class.

Use the on(String event, Function handler) method on the Razorpay instance to attach event listeners.


_razorpay.on(Razorpay.EVENT_PAYMENT_SUCCESS, _handlePaymentSuccess);
_razorpay.on(Razorpay.EVENT_PAYMENT_ERROR, _handlePaymentError);
_razorpay.on(Razorpay.EVENT_EXTERNAL_WALLET, _handleExternalWallet);

The handlers would be defined somewhere as


void _handlePaymentSuccess(PaymentSuccessResponse response) {
  // Do something when payment succeeds
}

void _handlePaymentError(PaymentFailureResponse response) {
  // Do something when payment fails
}

void _handleExternalWallet(ExternalWalletResponse response) {
  // Do something when an external wallet was selected
}

To clear event listeners, use the clear method on the Razorpay instance.

_razorpay.clear(); // Removes all listeners

Setup options

var options = {
  'key': '<YOUR_KEY_HERE>',
  'amount': 100,
  'name': 'Acme Corp.',
  'description': 'Fine T-Shirt',
  'prefill': {
    'contact': '8888888888',
    'email': 'test@razorpay.com'
  }
};

A detailed list of options can be found here.

Open Checkout

_razorpay.open(options);

Troubleshooting

Enabling Bitcode

Open ios/Podfile and find this section:

post_install do |installer|
  installer.pods_project.targets.each do |target|
    target.build_configurations.each do |config|
      config.build_settings['ENABLE_BITCODE'] = 'NO'
    end
  end
end

Set config.build_settings['ENABLE_BITCODE'] = 'YES'.

Setting Swift version

Add the following line below config.build_settings['ENABLE_BITCODE'] = 'YES':

config.build_settings['SWIFT_VERSION'] = '5.0'

CocoaPods could not find compatible versions for pod "razorpay_flutter" when running pod install

Specs satisfying the `razorpay_flutter (from
    `.symlinks/plugins/razorpay_flutter/ios`)` dependency were found, but they
    required a higher minimum deployment target.

This is due to your minimum deployment target being less than iOS 10.0. To change this, open ios/Podfile in your project and add/uncomment this line at the top:

# platform :ios, '9.0'

and change it to

platform :ios, '10.0'

and run pod install again in the ios directory.

iOS build fails with 'razorpay_flutter/razorpay_flutter-Swift.h' file not found

Add use_frameworks! in ios/Podfile and run pod install again in the ios directory.

Gradle build fails with Error: uses-sdk:minSdkVersion 16 cannot be smaller than version 19 declared in library [:razorpay_flutter]

This is due to your Android minimum SDK version being less than 19. To change this, open android/app/build.gradle, find minSdkVersion in defaultConfig and set it to at least 19.

A lot of errors saying xxxx is not defined for the class 'Razorpay'

We export a class Razorpay from package:razorpay_flutter/razorpay_flutter.dart. Check if your code is redeclaring the Razorpay class.

Type 'xxxx' is not a subtype of type 'xxxx' of 'response' in Razorpay.on.<anonymous closure>

[VERBOSE-2:ui_dart_state.cc(148)] Unhandled Exception: type 'PaymentFailureResponse' is not a subtype of type 'PaymentSuccessResponse' of 'response'
#0      Razorpay.on.<anonymous closure> (package:razorpay_flutter/razorpay_flutter.dart:87:14)
#1      EventEmitter.emit.<anonymous closure> (package:eventify/src/event_emitter.dart:94:14)
#2      List.forEach (dart:core-patch/growable_array.dart:278:8)
#3      EventEmitter.emit (package:eventify/src/event_emitter.dart:90:15)
#4      Razorpay._handleResult (package:razorpay_flutter/razorpay_flutter.dart:81:19)
#5      Razorpay.open (package:razorpay_flutter/razorpay_flutter.dart:49:5)

Check the signatures of the callbacks for payment events. They should match the ones described here.

API

Razorpay

open(map<String, dynamic> options)

Open Razorpay Checkout.

The options map has key as a required property. All other properties are optional. For a complete list of options, please see the Checkout documentation.

on(String eventName, Function listener)

Register event listeners for payment events.

clear()

Clear all event listeners.

Error Codes

The error codes have been exposed as integers by the Razorpay class.

The error code is available as the code field of the PaymentFailureResponse instance passed to the callback.

Error Code Description
NETWORK_ERROR There was a network error, for example loss of internet connectivity
INVALID_OPTIONS An issue with options passed in Razorpay.open
PAYMENT_CANCELLED User cancelled the payment
TLS_ERROR Device does not support TLS v1.1 or TLS v1.2
UNKNOWN_ERROR An unknown error occurred.

Event names

The event names have also been exposed as Strings by the Razorpay class.

Event Name Description
EVENT_PAYMENT_SUCCESS The payment was successful.
EVENT_PAYMENT_ERROR The payment was not successful.
EVENT_EXTERNAL_WALLET An external wallet was selected.

PaymentSuccessResponse

Field Name Type Description
paymentId String The ID for the payment.
orderId String The order ID if the payment was for an order, null otherwise.
signature String The signature to be used for payment verification. (Only valid for orders, null otherwise)

PaymentFailureResponse

Field Name Type Description
code int The error code.
message String The error message.

ExternalWalletResponse

Field Name Type Description
walletName String The name of the external wallet selected.

Libraries

js_razorpay
razorpay_flutter_plugin
razorpay_web