Here's an updated README.md file with the new title "Midtrans Dart Client":

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Midtrans Dart Client Example

This is an example implementation using the midtrans_client_flutter package, which provides integration with Midtrans, a popular payment gateway in Southeast Asia. This example demonstrates how to initialize the Midtrans client, create a transaction, and retrieve a Snap token.

Installation

To use midtrans_client_flutter, add it to your pubspec.yaml file:

   midtrans_client_flutter:
    git:
      url: https://github.com/NichoAdhyatma/midtrans_client_flutter.git
      ref: main
  pretty_dio_logger: ^1.4.0

Run flutter pub get to install the package.

Getting Started

Before starting, you'll need to sign up for a Midtrans account and obtain your Client Key and Server Key.

Example Code

The following code initializes the MidtransClientFlutter, creates a transaction request, and fetches the Snap token.

import 'dart:developer';
import 'package:midtrans_client_flutter/midtrans_client_flutter.dart';

void main() async {
  // Initialize the MidtransClientFlutter
  MidtransClientFlutter.initialize(
    clientKey: 'YOUR-CLIENT-KEY',
    serverKey: 'YOUR-SERVER-KEY',
    midtransEnvironment: Environments.sandbox,
  );

  // Get the instance of MidtransClientFlutter
  final midtransClientFlutter = MidtransClientFlutter.instance;

  // Get the SnapRepository
  final snapRepository = midtransClientFlutter.snapRepository;

  // Create a TransactionRequest
  final transactionRequest = TransactionRequest(
    transactionDetails: TransactionDetails(
      orderId: '123456',
      grossAmount: 20000,
    ),
    creditCard: CreditCard(
      secure: true,
    ),
  );

  // Get the Snap Token
  final snapToken = await snapRepository.getSnapToken(transactionRequest);

  // Handle the response
  snapToken.fold(
    // Handle the error scenario
    (error) => log('Error: ${error.errorMessages}'),

    // Handle the success scenario
    (success) {
      log('Success: $success');
      log('Snap Token: ${success.token}');
      log('Redirect Url: ${success.redirectUrl}');
    },
  );
}

How It Works

1. Initialize Midtrans: Set up the Midtrans client by providing your Client Key and Server Key. Use Environments.sandbox for testing and Environments.production for live transactions.
2. Create a Transaction Request: Define the transaction details such as orderId, grossAmount, and payment method (in this case, a secure credit card).
3. Fetch Snap Token: Retrieve the Snap token using the getSnapToken method. You can use this token to redirect users to Midtrans for payment processing.

Error Handling

The example uses a fold function to handle both success and error scenarios:

• Error: Logs error messages if the token request fails.
• Success: Logs the Snap token and redirect URL if the request succeeds.

License

This example code is provided under the MIT license.

Resources

• Midtrans Documentation
• Midtrans Flutter SDK GitHub

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This README.md provides a clear and concise guide for setting up and using the Midtrans Dart Client. Let me know if there's anything else to add!