artillery/dist/lib/platform/aws/aws-get-default-region.js

Cloud-scale load testing. https://www.artillery.io

import { loadConfig, NODE_REGION_CONFIG_FILE_OPTIONS, NODE_REGION_CONFIG_OPTIONS } from '@smithy/core/config';
import createDebug from 'debug';
const debug = createDebug('util:aws:get-default-region');
let defaultRegionAlreadyChecked = false;
let currentDefaultRegion = null;
export default async function getDefaultRegion() {
    if (!defaultRegionAlreadyChecked) {
        try {
            currentDefaultRegion = await loadConfig(NODE_REGION_CONFIG_OPTIONS, NODE_REGION_CONFIG_FILE_OPTIONS)();
        }
        catch (err) {
            debug('default region check:', err);
        }
        finally {
            defaultRegionAlreadyChecked = true;
        }
    }
    return currentDefaultRegion;
}