nttdatapay_flutter 1.0.8

nttdatapay_flutter: ^1.0.8 copied to clipboard

example/lib/main.dart

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

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

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

  @override
  Widget build(BuildContext context) {
    return const MaterialApp(
      debugShowCheckedModeBanner: false,
      home: HomePage(),
    );
  }
}

class HomePage extends StatefulWidget {
  const HomePage({super.key});

  @override
  State<HomePage> createState() => _HomePageState();
}

class _HomePageState extends State<HomePage> {
  bool loading = false;
  late String txnId;

  /// Merchant configuration (for demo/testing only; never hardcode production secrets)
  final nttdatapayConfig = const NttdatapayConfig(
    merchId: "XXXXXX",
    txnPassword: "XXXX@XXX",
    reqEncKey: "XXXXXXXXXXXXXXXXXXXXXXXXXXX",
    reqSalt: "XXXXXXXXXXXXXXXXXXXXXXXXXXX",
    resDecKey: "XXXXXXXXXXXXXXXXXXXXXXXXXXX",
    resSalt: "XXXXXXXXXXXXXXXXXXXXXXXXXXX",
    reqHashKey: "XXXXXXXXXXX",
    resHashKey: "XXXXXXXXXXXXXXXX",
    environment:
        NttdatapayEnvironment.uat, // Switch to production for live transactions
  );

  /// Generate payment token and initiate checkout flow
  Future<void> _payNow(BuildContext context) async {
    /// User information (for payment request)
    const String email = "test.usersas@xyz.in";
    const String mobile = "8888888888";
    const String amount = "2.00";

    final BuildContext ctx = context;

    setState(() {
      loading = true;
      txnId = "INV${DateTime.now().millisecondsSinceEpoch}";
    });

    try {
      /// Generate transaction token from NTTDATAPAY
      final ndpsTokenId = await NdpsAuthService.generateToken(
        config: nttdatapayConfig,
        txnId: txnId,
        amount: amount,
        email: email,
        mobile: mobile,
        prodId: "XXX", // multi in case of split payments (multi-product)
        // prodDetails: const [                                    // Add Multi-Product (Split Payment) Support
        //   ProdDetail(prodName: "XXX", prodAmount: "1.00"),
        //   ProdDetail(prodName: "XXXX", prodAmount: "1.00"),
        // ],
        custAccNo: "213232323",
        clientCode: "testValueForClientCode",
        txnCurrency: "INR",
        udf1: "udf1", // optional
        udf2: "udf2", // optional
        udf3: "udf3", // optional
        udf4: "udf4", // optional
        udf5: "udf5", // optional
      );

      if (!ctx.mounted) return;

      setState(() => loading = false);

      /// Open checkout WebView and wait for the final payment result
      final NdpsPaymentResult? result = await Navigator.push<NdpsPaymentResult>(
        ctx,
        MaterialPageRoute(
          builder: (_) => NdpsPaymentWebView(
            ndpsTokenId: ndpsTokenId,
            merchId: nttdatapayConfig.merchId,
            returnUrl: nttdatapayConfig.returnUrl,
            config: nttdatapayConfig,
            email: email,
            mobile: mobile,
            showAppBar: true,
            appBarTitle: "Complete Payment",
          ),
        ),
      );

      if (!ctx.mounted) return;

      /// HANDLE RESULT
      if (result == null) {
        _showSnack(ctx, "Payment window closed by user", Colors.orange);
        return;
      }

      // Transaction status
      final String status = result.status;
      debugPrint("Transaction status => $status"); // OTS0000 is success

      // Transaction description
      final String description = result.description.toString();
      debugPrint("Transaction description => $description");

      // Full transaction response (raw JSON map)
      final Map<String, dynamic> transactionResponse = result.rawResponse;
      debugPrint("Transaction response => $transactionResponse");

      switch (status) {
        // success
        case "OTS0000":
          _showSnack(ctx, "Payment Successful", Colors.green);
          break;

        // pending payment and NEFT/RTGS payment initial status
        case "OTS0551":
        case "PENDING":
          _showSnack(
            ctx,
            result.description.isNotEmpty
                ? result.description
                : "Payment Pending",
            Colors.orange,
          );
          break;

        // failed
        case "OTS0600":
          _showSnack(ctx, "Payment Failed", Colors.red);
          break;

        case "CANCELLED":
          _showSnack(ctx, "Payment cancelled by user", Colors.orange);
          break;

        case "TIMEOUT":
          _showSnack(
            ctx,
            "Session timed out. Please try again.",
            Colors.orange,
          );
          break;

        default:
          _showSnack(ctx, "Payment Failed (Status: $status)", Colors.red);
      }
    } catch (e) {
      if (!ctx.mounted) return;
      setState(() => loading = false);
      _showSnack(ctx, "Payment initiation failed: $e", Colors.red);
    }
  }

  /// Snack helper (context-safe)
  void _showSnack(BuildContext ctx, String msg, Color color) {
    ScaffoldMessenger.of(
      ctx,
    ).showSnackBar(SnackBar(content: Text(msg), backgroundColor: color));
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(title: const Text("NTTDATAPAY Demo"), centerTitle: true),
      body: Center(
        child: loading
            ? const CircularProgressIndicator()
            : ElevatedButton(
                onPressed: () => _payNow(context),
                style: ElevatedButton.styleFrom(
                  padding: const EdgeInsets.symmetric(
                    horizontal: 40,
                    vertical: 14,
                  ),
                ),
                child: const Text("Pay Now", style: TextStyle(fontSize: 16)),
              ),
      ),
    );
  }
}