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

Datadog APM tracing client for JavaScript

'use strict'

const { addHook } = require('import-in-the-middle')
const dc = require('dc-polyfill')

const moduleLoadStartChannel = dc.channel('dd-trace:moduleLoadStart')
addHook((name, namespace) => {
  if (moduleLoadStartChannel.hasSubscribers) {
    moduleLoadStartChannel.publish({
      filename: name,
      module: namespace
    })
  }
})
module.exports = require('import-in-the-middle')