Function validateRequestBodySize

apps/sim/tools/index.ts:698–717

* Validates request body size and throws a user-friendly error if exceeded * @param body - The request body string to check * @param requestId - Request ID for logging * @param context - Context string for logging (e.g., toolId) * @throws Error if body size exceeds the limit

(
  body: string | undefined,
  requestId: string,
  context: string
)

 * @throws Error if body size exceeds the limit
 */
function validateRequestBodySize(
  body: string | undefined,
  requestId: string,
  context: string
): void {
  if (!body) return

  const bodySize = Buffer.byteLength(body, 'utf8')
  if (bodySize > MAX_REQUEST_BODY_SIZE_BYTES) {
    const bodySizeMB = (bodySize / (1024 * 1024)).toFixed(2)
    const maxSizeMB = (MAX_REQUEST_BODY_SIZE_BYTES / (1024 * 1024)).toFixed(0)
    logger.error(`[${requestId}] Request body size exceeds limit for ${context}:`, {
      bodySize,
      bodySizeMB: `${bodySizeMB}MB`,
      maxSize: MAX_REQUEST_BODY_SIZE_BYTES,
      maxSizeMB: `${maxSizeMB}MB`,
    })
    throw new Error(BODY_SIZE_LIMIT_ERROR_MESSAGE)
  }
}

/**
 * Checks if an error message indicates a body size limit issue