@instana/core
Version:
Core library for Instana's Node.js packages
28 lines (24 loc) • 1.03 kB
JavaScript
/*
* (c) Copyright IBM Corp. 2021
* (c) Copyright Instana Inc. and contributors 2018
*/
/* eslint-disable max-len */
;
/**
* In order to increase Node.js version support, this loads an implementation of a CLS (continuation local storage) API
* which is appropriate for the version of Node.js that is running.
* If 'INSTANA_FORCE_LEGACY_CLS' is set to 'true', the legacy implementation will be used.
*
* Previous known Issues:
* - Node.js 16.7 introduced a bug that breaks AsyncLocalStorage:
* https://github.com/nodejs/node/issues/40693
* This bug affected the functionality of AsyncLocalStorage until it was fixed in:
* - Node.js 16.14: https://github.com/nodejs/node/blob/master/doc/changelogs/CHANGELOG_V16.md#commits
* - Node.js 17.2: https://github.com/nodejs/node/blob/master/doc/changelogs/CHANGELOG_V17.md#commits-5
*
*/
if (process.env.INSTANA_FORCE_LEGACY_CLS !== 'true') {
module.exports = require('./async_local_storage_context');
} else {
module.exports = require('./context');
}