Run lighthouse programmatically for multiple pages

lighthouse.js

// yarn add --dev lighthouse cross-env
// in package.json: 
// scripts: { "lighthouse-dev": "cross-env NODE_ENV=development node ./lighthouse.js",
//  "lighthouse-prod": "cross-env NODE_ENV=production CHROME_FLAGS=--headless node ./lighthouse.js" }

const lighthouse = require('lighthouse')
const chromeLauncher = require('chrome-launcher')
const fs = require('fs')
const mode = process.env.NODE_ENV
const chromeFlags = '-headless'
const outputDirectory = './report_lighthouse'
const ReportGenerator = require('lighthouse/lighthouse-core/report/report-generator')
const config = getConfig()

const sitePages = {
  "pages": [
    {
      "name": "home",
      "path": "/"
    },
    {
      "name": "about",
      "path": "/about"
    },
}

function main () {
  asyncForEach(sitePages.pages, async page => {
    try {
      await launchChromeAndRunLighthouse(page).then(results => {
        writeResults(page, results)
      })
    } catch (error) {
      console.log(error)
    }
  })
}

async function asyncForEach (array, callback) {
  for (let index = 0; index < array.length; index++) {
    await callback(array[index], index, array)
  }
}

function launchChromeAndRunLighthouse (page) {
  return new Promise((resolve, reject) => {
    const options = {
      chromeFlags
    }
    chromeLauncher.launch({ chromeFlags: options.chromeFlags }).then(chrome => {
      options.port = chrome.port
      const url = `${config.baseUrl}${page.path}`

      lighthouse(url, options, config.lighthouseConfig)
        .then(results => {
          chrome.kill().then(resolve(results.lhr))
        })
        .catch(error => {
          console.log(error)
          reject(error)
        })
    })
  })
}

function writeResults (page, results) {
  if (!fs.existsSync(outputDirectory)) {
    fs.mkdirSync(outputDirectory)
  }

  const htmlReport = ReportGenerator.generateReport(results, 'html')
  const resultsPath = getReportFilePath(outputDirectory, page.name)
  return fs.writeFile(resultsPath, htmlReport, function (err) {
    if (err) {
      return console.log(err)
    }
    console.log(`The report for "${page.name}" was saved at ${resultsPath}`)
  })
}

function getReportFilePath (outputDirectory, pageName) {
  const now = new Date()
  return `${outputDirectory}/${pageName}-${now.getFullYear()}-${now.getMonth()}-${now.getDate()}-${now.getHours()}-${now.getMinutes()}-${now.getSeconds()}-${now.getMilliseconds()}.html`
}

function getConfig () {
  let configPath
  if (mode === 'development') {
    configPath = './config/lighthouse.dev.js'
  } else if (mode === 'production') {
    configPath = './config/lighthouse.prod.js'
  }
  return require(configPath)
}

main()

// file: ./config/lighthouse.dev.js
'use strict'

module.exports = {
  baseUrl: 'http://localhost:8080',
  lighthouseConfig: {
    extends: 'lighthouse:default',
    settings: {
      onlyCategories: ['accessibility', 'best-practices', 'seo'],
      skipAudits: ['canonical', 'is-on-https', 'uses-http2']
    }
  }
}

Thanks for this snippet! It helped me a lot.
I think there is a syntax error somewhere here https://gist.github.com/mort3za/e959d806a8635a914bcc76c2895014ef#file-lighthouse-js-L24:

const sitePages = {
  "pages": [
    {
      "name": "home",
      "path": "/"
    },
    {
      "name": "about",
      "path": "/about"
    }, // <--- A closing array block "]" is missing!
}