Using Laravel 5.5 render for exceptions

AuthService.php

<?php

class AuthService {

    // ----

    public function issueToken(array $credentials)
    {
        $token = $this->apiGuard()->attempt($credentials);
        throw_if(!$token, InvalidCredentials::class);

        $user = $this->apiGuard()->user();

        throw_if(!$user->confirmed, AccountNotConfirmed::class);
        throw_if($user->suspended, AccountSuspended::class);
        // Add more checks if needed

        return $token;
    }

    private function apiGuard()
    {
        return $this->auth->guard('api');
    }
}

BaseError.php

<?php

class BaseError extends \Exception {

    protected $code = 500;
    protected $message = 'unknown error';
    protected $name = 'UNKNOWN_ERROR';

    /**
     * Render exception to JSON
     *
     * @return \Illuminate\Http\JsonResponse
     */
    public function render()
    {
        return response()->json([
            'name' => $this->name,
            'message' => $this->message,
            'code' => $this->code,
        ], $this->code);
    }

}

custom-errors.php

<?php

class InvalidCredentials extends BaseError {
    protected $code = 404;
    protected $message = 'Invalid user credentials provided.';
    protected $name = 'INVALID_CREDENTIALS';
}

class AccountNotConfirmed extends BaseError {
    protected $code = 403;
    protected $message = 'This account is not confirmed.';
    protected $name = 'ACCOUNT_NOT_CONFIRMED';
}

class AccountSuspended extends BaseError {
    protected $code = 403;
    protected $message = 'This account is suspended.';
    protected $name = 'ACCOUNT_SUSPENDED';
}

sample-response.json

{
    "name": "ACCOUNT_NOT_CONFIRMED",
    "message": "This account is not confirmed.",
    "code": 403
}