razorpay_flutter 1.3.3

Flutter plugin for Razorpay SDK. To know more about Razorpay, visit http://razorpay.com.

example/lib/main.dart

import 'package:flutter/material.dart';
import 'package:razorpay_flutter/razorpay_flutter.dart';

void main() {
  runApp(const MyApp());
}

class MyApp extends StatelessWidget {
  const MyApp({super.key});

  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        // This is the theme of your application.
        //
        // Try running your application with "flutter run". You'll see the
        // application has a blue toolbar. Then, without quitting the app, try
        // changing the primarySwatch below to Colors.green and then invoke
        // "hot reload" (press "r" in the console where you ran "flutter run",
        // or simply save your changes to "hot reload" in a Flutter IDE).
        // Notice that the counter didn't reset back to zero; the application
        // is not restarted.
        primarySwatch: Colors.blue,
      ),
      home: const MyHomePage(title: 'Flutter Demo Home Page'),
    );
  }
}

class MyHomePage extends StatefulWidget {
  const MyHomePage({super.key, required this.title});

  // This widget is the home page of your application. It is stateful, meaning
  // that it has a State object (defined below) that contains fields that affect
  // how it looks.

  // This class is the configuration for the state. It holds the values (in this
  // case the title) provided by the parent (in this case the App widget) and
  // used by the build method of the State. Fields in a Widget subclass are
  // always marked "final".

  final String title;

  @override
  State<MyHomePage> createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  int _counter = 0;

  void _incrementCounter() {
    setState(() {
      // This call to setState tells the Flutter framework that something has
      // changed in this State, which causes it to rerun the build method below
      // so that the display can reflect the updated values. If we changed
      // _counter without calling setState(), then the build method would not be
      // called again, and so nothing would appear to happen.
      _counter++;
    });
  }

  @override
  Widget build(BuildContext context) {
    // This method is rerun every time setState is called, for instance as done
    // by the _incrementCounter method above.
    //
    // The Flutter framework has been optimized to make rerunning build methods
    // fast, so that you can just rebuild anything that needs updating rather
    // than having to individually change instances of widgets.
    return Scaffold(
      appBar: AppBar(
        // Here we take the value from the MyHomePage object that was created by
        // the App.build method, and use it to set our appbar title.
        title: Text(widget.title),
      ),
      body: Center(
        // Center is a layout widget. It takes a single child and positions it
        // in the middle of the parent.
        child: Column(
          // Column is also a layout widget. It takes a list of children and
          // arranges them vertically. By default, it sizes itself to fit its
          // children horizontally, and tries to be as tall as its parent.
          //
          // Invoke "debug painting" (press "p" in the console, choose the
          // "Toggle Debug Paint" action from the Flutter Inspector in Android
          // Studio, or the "Toggle Debug Paint" command in Visual Studio Code)
          // to see the wireframe for each widget.
          //
          // Column has various properties to control how it sizes itself and
          // how it positions its children. Here we use mainAxisAlignment to
          // center the children vertically; the main axis here is the vertical
          // axis because Columns are vertical (the cross axis would be
          // horizontal).
          mainAxisAlignment: MainAxisAlignment.center,
          children: <Widget>[
            const Text(
              'Pay with Razorpay',
            ),
            ElevatedButton(onPressed: (){
                  Razorpay razorpay = Razorpay();
                  var options = {
                    'key': 'rzp_live_ILgsfZCZoFIKMb',
                    'amount': 100,
                    'name': 'Acme Corp.',
                    'description': 'Fine T-Shirt',
                    'retry': {'enabled': true, 'max_count': 1},
                    'send_sms_hash': true,
                    'prefill': {'contact': '8888888888', 'email': '[e-mail]'},
                    'external': {
                      'wallets': ['paytm']
                    }
                  };
                  razorpay.on(Razorpay.EVENT_PAYMENT_ERROR, handlePaymentErrorResponse);
                  razorpay.on(Razorpay.EVENT_PAYMENT_SUCCESS, handlePaymentSuccessResponse);
                  razorpay.on(Razorpay.EVENT_EXTERNAL_WALLET, handleExternalWalletSelected);
                  razorpay.open(options);
                },
                child: const Text("Pay with Razorpay")),
          ],
        ),
      ),
      floatingActionButton: FloatingActionButton(
        onPressed: _incrementCounter,
        tooltip: 'Increment',
        child: const Icon(Icons.add),
      ), // This trailing comma makes auto-formatting nicer for build methods.
    );
  }

  void handlePaymentErrorResponse(PaymentFailureResponse response){
    /*
    * PaymentFailureResponse contains three values:
    * 1. Error Code
    * 2. Error Description
    * 3. Metadata
    * */
    showAlertDialog(context, "Payment Failed", "Code: ${response.code}\nDescription: ${response.message}\nMetadata:${response.error.toString()}");
  }

  void handlePaymentSuccessResponse(PaymentSuccessResponse response){
    /*
    * Payment Success Response contains three values:
    * 1. Order ID
    * 2. Payment ID
    * 3. Signature
    * */
    showAlertDialog(context, "Payment Successful", "Payment ID: ${response.paymentId}");
  }

  void handleExternalWalletSelected(ExternalWalletResponse response){
    showAlertDialog(context, "External Wallet Selected", "${response.walletName}");
  }

  void showAlertDialog(BuildContext context, String title, String message){
    // set up the buttons
    Widget continueButton = ElevatedButton(
      child: const Text("Continue"),
      onPressed:  () {},
    );
    // set up the AlertDialog
    AlertDialog alert = AlertDialog(
      title: Text(title),
      content: Text(message),
      actions: [
        continueButton,
      ],
    );
    // show the dialog
    showDialog(
      context: context,
      builder: (BuildContext context) {
        return alert;
      },
    );
  }
}