[BUG]

by ADMIN 6 views

Introduction

In this article, we will delve into a bug report related to the Paystack Flutter SDK. The issue at hand is that when attempting to use the Paystack Flutter SDK to process a card payment in a Flutter application, a "No access code found" error is received. This error occurs despite the transaction initialization succeeding on the backend, and the access code being present in the response.

Describe the Bug

When attempting to use the Paystack Flutter SDK to process a card payment in a Flutter application, the following error is encountered:

"No access code found"

This error occurs despite the transaction initialization succeeding on the backend, and the access code being present in the response.

Expected Behavior

The expected behavior is that the Paystack payment interface should launch and allow the user to complete the payment transaction after successful initialization with the access code.

Code Implementation

The code implementation for the addCardWithSdk method is as follows:

@override
Future<Either<Failure, TransactionResponse>> addCardWithSdk() async {
  final dioClient = ref.read(dioProvider).dio;
  var secureStorage = FlutterSecureStorage();
  var apiToken = await secureStorage.read(key: StorageKeys.apiToken);
  final _paystack = Paystack();
  final publicKey = 'pk_test_xxxxxxxxxx';
  try {
    if (apiToken == null) {
      return left(
        Failure(code: 401, message: 'Authentication token not found'),
      );
    }
    
    // Set auth token
    ref.read(dioProvider).setAuthToken(apiToken);
    final response = await dioClient.get('/user/process/card');
    if (response.statusCode == 200 || response.statusCode == 201) {
      var accessCode = response.data['data']['access_code'] as String;
      debugPrint('Access code - $accessCode');
      final paystackRes = await _paystack.initialize(publicKey, true);
      if (paystackRes) {
        final paymentResponse = await _paystack.launch(accessCode);
        // Rest of implementation...
      }
    }
  } catch (e) {
    // Error handling...
  }
}

API Response

The backend is returning a successful response (200/201) and the access code is being returned with a debug print.

Screenshots

[Add your screenshots here]

Smartphone Information

  • Device: Samsung S10
  • OS: Android 12
  • Flutter SDK Version: 3.29.2

Verification

I've verified that:

  • The API token is valid and being properly passed
  • The Paystack SDK initializes successfully (paystackRes is true)
  • The error occurs specifically at the point of trying to use the access code

Troubleshooting Steps

To troubleshoot this issue, the following steps can be taken:

  1. Verify API Response: Verify that the API response is correct and the access code is being returned.
  2. Check Paystack SDK Initialization: Check if the Paystack SDK is initializing successfully.
  3. Check Access Code: Check if the access code is being passed correctly to the Paystack SDK.
  4. Check Error Handling: Check if the error handling is properly implemented to catch and handle the "No access code found" error.

Conclusion

In conclusion, the "No access code found" error when using the Paystack Flutter SDK is a common issue that can be resolved by verifying the API response, checking the Paystack SDK initialization, checking the access code, and checking the error handling. By following these troubleshooting steps, developers can resolve this issue and ensure that their application is functioning correctly.

Additional Tips

  • Use Debugging Tools: Use debugging tools such as the Flutter debugger or the Android Studio debugger to identify the source of the error.
  • Check Paystack SDK Documentation: Check the Paystack SDK documentation for any updates or changes that may be causing the issue.
  • Reach Out to Paystack Support: Reach out to Paystack support for assistance in resolving the issue.

Related Issues

  • Paystack Flutter SDK Initialization Error: This issue is related to the Paystack Flutter SDK initialization error.
  • Access Code Not Found: This issue is related to the access code not being found error.

Future Development

In the future, the Paystack Flutter SDK can be improved by:

  • Adding Error Handling: Adding error handling to catch and handle any errors that may occur during the payment process.
  • Improving API Response: Improving the API response to ensure that the access code is being returned correctly.
  • Enhancing Paystack SDK: Enhancing the Paystack SDK to ensure that it is functioning correctly and efficiently.
    Q&A: Resolving the "No Access Code Found" Error in Paystack Flutter SDK ====================================================================

Introduction

In our previous article, we discussed the "No access code found" error when using the Paystack Flutter SDK. In this article, we will provide a Q&A section to help developers resolve this issue.

Q: What is the "No access code found" error?

A: The "No access code found" error is a common issue that occurs when attempting to use the Paystack Flutter SDK to process a card payment. This error occurs despite the transaction initialization succeeding on the backend, and the access code being present in the response.

Q: What are the possible causes of the "No access code found" error?

A: The possible causes of the "No access code found" error include:

  • Incorrect API Response: The API response may not be correct, or the access code may not be being returned.
  • Paystack SDK Initialization Error: The Paystack SDK may not be initializing correctly, which can cause the error.
  • Access Code Not Being Passed Correctly: The access code may not be being passed correctly to the Paystack SDK.
  • Error Handling Not Implemented: Error handling may not be implemented correctly, which can cause the error.

Q: How can I troubleshoot the "No access code found" error?

A: To troubleshoot the "No access code found" error, you can follow these steps:

  1. Verify API Response: Verify that the API response is correct and the access code is being returned.
  2. Check Paystack SDK Initialization: Check if the Paystack SDK is initializing successfully.
  3. Check Access Code: Check if the access code is being passed correctly to the Paystack SDK.
  4. Check Error Handling: Check if the error handling is properly implemented to catch and handle the "No access code found" error.

Q: What are the best practices for resolving the "No access code found" error?

A: The best practices for resolving the "No access code found" error include:

  • Use Debugging Tools: Use debugging tools such as the Flutter debugger or the Android Studio debugger to identify the source of the error.
  • Check Paystack SDK Documentation: Check the Paystack SDK documentation for any updates or changes that may be causing the issue.
  • Reach Out to Paystack Support: Reach out to Paystack support for assistance in resolving the issue.

Q: Can I prevent the "No access code found" error from occurring?

A: Yes, you can prevent the "No access code found" error from occurring by:

  • Implementing Error Handling: Implementing error handling to catch and handle any errors that may occur during the payment process.
  • Verifying API Response: Verifying that the API response is correct and the access code is being returned.
  • Checking Paystack SDK Initialization: Checking if the Paystack SDK is initializing successfully.

Q: What are the consequences of not resolving the "No access code found" error?

A: The consequences of not resolving the "No access code found" error:

  • Payment Failure: The payment may fail, which can result in a loss of revenue.
  • User Frustration: The user may become frustrated with the payment process, which can result in a loss of customer satisfaction.
  • Reputation Damage: The reputation of your application may be damaged, which can result in a loss of customers.

Conclusion

In conclusion, the "No access code found" error when using the Paystack Flutter SDK is a common issue that can be resolved by following the troubleshooting steps and best practices outlined in this article. By implementing error handling, verifying API response, and checking Paystack SDK initialization, you can prevent this error from occurring and ensure a smooth payment process for your users.