Omnipay\Alipay\Requests\AopVerifyAppPayReturnRequest::validate PHP Method

    public function validate()
    {
        parent::validate('result');
        $result = $this->getResult();
        if (!is_string($result)) {
            throw new InvalidRequestException('The result should be string');
        }
        if (substr($result, 0, 3) == '{\\"') {
            $result = stripslashes($result);
        }
        $data = json_decode($result, true);
        if (json_last_error() != JSON_ERROR_NONE) {
            throw new InvalidRequestException('The result should be a valid json string');
        }
        if (!isset($data[$this->key])) {
            throw new InvalidRequestException("The result decode data should contain {$this->key}");
        }
    }