dd-trace/packages/dd-trace/src/iitm.js

Datadog APM tracing client for JavaScript

'use strict'

const semver = require('semver')
const logger = require('./log')

if (semver.satisfies(process.versions.node, '^12.20.0 || >=14.13.1')) {
  module.exports = require('import-in-the-middle')
} else {
  logger.warn('ESM is not fully supported by this version of Node.js, ' +
    'so dd-trace will not intercept ESM loading.')
  module.exports = () => {}
}