Added 2 functions to retrieve the error messages

@Freeaqingme Added 2 functions to retrieve the error messages from the Buckaroo response.

Update for 5.6.3

@Maxdw has changed the Data class to \stdClass. It was throwing a namespace conflict. See #2 for changes.

Support to retrieve multiple transactions

Added support to retrieve multiple transactions at once

$transactionStatus = new TransactionStatus('website-key', 'secret-key');
        
$transactionStatus->addTransactionByKey('transaction-key');
$transactionStatus->addTransactionByInvoice('invoice');
        
$transactionResponses = $transactionStatus->get();

Fixed some CodeClimate issues

I fixed a couple of CodeClimate issues

Add methods to add headers to GuzzleHTTP Client

@marcopetersamazing created a pull request for a method to add a header to the GuzzleHTTP Client. I've added a couple more functions and written a test to finish the pull request.

New

• $transaction->addClientHeader('name', 'value');
• $transaction->hasClientHeader('name');
• $transaction->getClientHeader('name');

Added getRequiredActionName

I've added the getRequiredActionName function to the TransactionResponse class to get the required action name.

First release - MVP

This is the MVP release of the php Buckaroo JSON package. In this package are currently only 2 methods:

1. Start a new transaction
2. Get a transaction status