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Understanding NotFoundException in AWS Budgets

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By Exception Decoded 3 min read

Amazon Web Services (AWS) provides a vast array of services that allow users to manage resources efficiently. One such service, AWS Budgets, enables users to track their cost and usage. However, as with any service, exceptions can occur, and one of the notable exceptions in AWS Budgets is NotFoundException. In this article, we will explore what the NotFoundException is, common scenarios where it may arise, and how to effectively handle it in your AWS applications.

What is NotFoundException?

The NotFoundException in the com.amazonaws.services.budgets.model package signifies that a specific resource or entity accessed through the AWS Budgets API could not be found. This exception is typically thrown when:

  • The requested budget does not exist.
  • The specified account information is invalid.
  • The budget details requested have been deleted or never created.

Understanding why and when this exception occurs is crucial for developers who interact with AWS Budgets via SDKs or APIs.

Common Scenarios Leading to NotFoundException

  1. Accessing Non-Existent Budgets: When a developer attempts to retrieve information about a budget using a budget ID that does not exist, the NotFoundException is thrown.

    Example:

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    import com.amazonaws.services.budgets.AWSBudgets;
import com.amazonaws.services.budgets.AWSBudgetsClientBuilder;
import com.amazonaws.services.budgets.model.DescribeBudgetsRequest;
import com.amazonaws.services.budgets.model.NotFoundException;
import com.amazonaws.services.budgets.model.DescribeBudgetsResult;

public class BudgetRetrieval {
    public static void main(String[] args) {
        AWSBudgets budgetsClient = AWSBudgetsClientBuilder.defaultClient();
        String accountId = "123456789012"; // Replace with your account ID
        String budgetName = "NonExistentBudget"; // Non-existent budget

        DescribeBudgetsRequest request = new DescribeBudgetsRequest()
                .withAccountId(accountId);

        try {
            DescribeBudgetsResult response = budgetsClient.describeBudgets(request);
            // Process the response
        } catch (NotFoundException e) {
            System.out.println("Error: Budget not found for account ID: " + accountId);
        }
    }
}

  2. Referencing Deleted Budgets: If a budget is deleted, any further attempts to access it using its ID will result in a NotFoundException.

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    public class DeletedBudgetAccess {
    public static void main(String[] args) {
        AWSBudgets budgetsClient = AWSBudgetsClientBuilder.defaultClient();
        String budgetId = "deleted-budget-id"; // Assume this budget was deleted

        try {
            DescribeBudgetsRequest request = new DescribeBudgetsRequest()
                    .withAccountId("123456789012");

            DescribeBudgetsResult result = budgetsClient.describeBudgets(request);
            // Iterate through budgets and look for budgetId
        } catch (NotFoundException e) {
            System.out.println("Error: Budget ID " + budgetId + " was not found. It may have been deleted.");
        }
    }
}

  3. Invalid Account Information: Using incorrect or invalid AWS account information can also lead to a NotFoundException.

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    public class InvalidAccountExample {
    public static void main(String[] args) {
        AWSBudgets budgetsClient = AWSBudgetsClientBuilder.defaultClient();
        String invalidAccountId = "wrong-account-id"; // Invalid account ID

        try {
            DescribeBudgetsRequest request = new DescribeBudgetsRequest()
                    .withAccountId(invalidAccountId);
            DescribeBudgetsResult response = budgetsClient.describeBudgets(request);
            // Process the response
        } catch (NotFoundException e) {
            System.out.println("Error: Account ID " + invalidAccountId + " not found.");
        }
    }
}

Best Practices for Handling NotFoundException

  1. Graceful Error Handling: Always implement error handling when calling AWS services. This can help prevent unexpected crashes and provide meaningful error messages to users.

  2. Validate Input: Before making API calls, validate that the budget IDs and account information are correct. This can significantly reduce the chances of encountering NotFoundException.

  3. Logging: Implement logging for better traceability of issues. This is especially useful in production environments for diagnosing problems related to budget retrieval.

  4. API Backoff Strategy: Implement exponential backoff for API calls, especially when you anticipate the possibility of rate-limiting or temporary unavailability of the budget resources.

  5. Documentation and Comments: Ensure your code is well-documented with comments to explain the logic behind error handling when accessing AWS Budgets.

Conclusion

The NotFoundException is an essential aspect of working with AWS Budgets and signifies various potential issues, from referencing nonexistent budgets to invalid account identifiers. By understanding this exception, implementing best practices, and using code examples provided, developers can build more robust, error-resistant applications that integrate with AWS services.

For further reading and a deeper understanding, you may visit the following resources:

By following the guidelines in this article, you should be well-equipped to handle NotFoundException effectively in your AWS applications.

AWS, AWS Budgets
aws budgets com.amazonaws.services.budgets.model
This post is licensed under CC BY 4.0 by the author.