Null pointer exception

[rukaelin]

We are using your SDK and at the mentioned line, a null pointer exception occurred.
$errorResponse[0] is null, so calling a method on it fails.

php-sdk/src/Hyperwallet/Exception/HyperwalletApiException.php

Line 33 in 839ce3c

parent::__construct($errorResponse[0]->getMessage(), null, $previous);

here is the stack trace:

Uncaught Error: Call to a member function getMessage() on null in ***/vendor/hyperwallet/sdk/src/Hyperwallet/Exception/HyperwalletApiException.php:26
Stack trace:
#0 ***/vendor/hyperwallet/sdk/src/Hyperwallet/Util/ApiClient.php(145): Hyperwallet\Exception\HyperwalletApiException->__construct(Object(Hyperwallet\Response\ErrorResponse), Object(GuzzleHttp\Exception\ServerException))
#1 ***/vendor/hyperwallet/sdk/src/Hyperwallet/Util/ApiClient.php(107): Hyperwallet\Util\ApiClient->doRequest('GET', '/rest/v3/transf...', Array, Array)
#2 ***/vendor/hyperwallet/sdk/src/Hyperwallet/Hyperwallet.php(1347): Hyperwallet\Util\ApiClient->doGet('/rest/v3/transf...', Array, Array)
#3

[wmews-hw]

Hi @rukaelin,

We could simply add a null check to avoid the error but could you help us understand the scenario providing:

• what is the call that we are trying to make?
• what was the http response that is causing this error?

[rukaelin]

It's harder for me to tell, as it happened already more than two weeks in the past.
I think it relates to a 502 response that was sent shortly before the mentioned error:

file: gyg/vendor/hyperwallet/sdk/src/Hyperwallet/Response/ErrorResponse.php:37

msg: Undefined index: errors
context:
(
[statusCode] => 502
[errors] => array((
[error] => array((
[message] => "Bad Gateway: indicates that the server, while acting as a gateway or proxy, received an invalid response from an inbound server it accessed while attempting to fulfill the request."
[code] => "502"
)
)
)
)
)