Seldaek/monolog · error · InvalidArgumentException

SqsHandler accepts only formatted records as a string

Error message

SqsHandler accepts only formatted records as a string

What it means

Error "SqsHandler accepts only formatted records as a string" thrown in Seldaek/monolog.

Source

Thrown at src/Monolog/Handler/SqsHandler.php:48

    private SqsClient $client;
    private string $queueUrl;

    public function __construct(SqsClient $sqsClient, string $queueUrl, int|string|Level $level = Level::Debug, bool $bubble = true)
    {
        parent::__construct($level, $bubble);

        $this->client = $sqsClient;
        $this->queueUrl = $queueUrl;
    }

    /**
     * @inheritDoc
     */
    protected function write(LogRecord $record): void
    {
        if (!isset($record->formatted) || 'string' !== \gettype($record->formatted)) {
            throw new \InvalidArgumentException('SqsHandler accepts only formatted records as a string' . Utils::getRecordMessageForException($record));
        }

        $messageBody = $record->formatted;
        if (\strlen($messageBody) >= static::MAX_MESSAGE_SIZE) {
            $messageBody = Utils::substr($messageBody, 0, static::HEAD_MESSAGE_SIZE);
        }

        $this->client->sendMessage([
            'QueueUrl' => $this->queueUrl,
            'MessageBody' => $messageBody,
        ]);
    }
}

View on GitHub (pinned to 57eb102834)

When it happens

Trigger: Thrown at src/Monolog/Handler/SqsHandler.php:48 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of Seldaek/monolog@57eb102834 (2026-08-17). Data as JSON: /api/errors/08a256295b7fbf68. Report an issue: GitHub.