Office Whisperer

import { isValidHostLabel } from "@smithy/util-endpoints"; const validRegions = new Set(); export const checkRegion = (region, check = isValidHostLabel) => { if (!validRegions.has(region) && !check(region)) { if (region === "*") { console.warn(`@smithy/config-resolver WARN - Please use the caller region instead of "*". See "sigv4a" in https://github.com/aws/aws-sdk-js-v3/blob/main/supplemental-docs/CLIENTS.md.`); } else { throw new Error(`Region not accepted: region="${region}" is not a valid hostname component.`); } } else { validRegions.add(region); } };