Function warmServer

lib/warm-server.js:18–48

()

let promisedWarmServer

async function warmServer() {
  const startTime = Date.now()

  if (process.env.NODE_ENV !== 'test') {
    console.log('Priming context information...')
  }

  const unversionedTree = await dog.loadUnversionedTree()
  const siteTree = await dog.loadSiteTree(unversionedTree)
  const pageList = await dog.loadPages(unversionedTree)
  const pageMap = await dog.loadPageMap(pageList)
  const redirects = await dog.loadRedirects(pageList)

  statsd.gauge('memory_heap_used', process.memoryUsage().heapUsed, ['event:warm-server'])

  statsd.gauge('num_redirects', Object.keys(redirects).length)
  statsd.gauge('num_page_map', Object.keys(pageMap).length)
  statsd.gauge('num_page_list', Object.keys(pageList).length)

  if (process.env.NODE_ENV !== 'test') {
    console.log(`Context primed in ${Date.now() - startTime} ms`)
  }

  return {
    pages: pageMap,
    redirects,
    unversionedTree,
    siteTree,
    pageList,
  }
}

// Instrument the `warmServer` function so that
// it's wrapped in a timer that reports to Datadog