Uncaught Exception

[fstiehle]

The AWS SDK, in addition to CognitoIdentityProviderException seems to also throw GuzzleHttp\Exception\ClientException.

public function registerUser() for example throws this for {"__type":"UsernameExistsException","message":"User already exists"}
(See error snippet below).

This doesn't get caught and mapped to the pmill\AwsCognito\Exception's.
Making the error handling significantly harder for the caller method.

(Related #20?)

Fatal error: Uncaught GuzzleHttp\Exception\ClientException: Client error: `POST https://cognito-idp.us-east-1.amazonaws.com` resulted in a `400 Bad Request` response: {"__type":"UsernameExistsException","message":"User already exists"} in /app/public/.../vendor/pmill/aws-cognito/src/Exception/CognitoResponseException.php on line 28

[alielephant]

Facing the same issue, I cant catch the exception.
CognitoClient Class need to return the issue instead of throwing an exception : throw CognitoResponseException::createFromCognitoException($e);

[pmill]

I'd be happy to accept a pull request for this.