import puppeteer from 'puppeteer' export default class Browser { async start(options = {}) { // https://github.com/GoogleChrome/puppeteer/blob/master/docs/api.md#puppeteerlaunchoptions this.browser = await puppeteer.launch( Object.assign( { args: ['--no-sandbox', '--disable-setuid-sandbox'], executablePath: process.env.PUPPETEER_EXECUTABLE_PATH }, options ) ) } async close() { if (!this.browser) return await this.browser.close() } async page(url, globalName = 'nuxt') { if (!this.browser) throw new Error('Please call start() before page(url)') const page = await this.browser.newPage() await page.goto(url) page.$nuxtGlobalHandle = `window.$${globalName}` await page.waitForFunction(`!!${page.$nuxtGlobalHandle}`) page.html = () => page.evaluate(() => window.document.documentElement.outerHTML) page.$text = selector => page.$eval(selector, el => el.textContent) page.$$text = selector => page.$$eval(selector, els => els.map(el => el.textContent)) page.$attr = (selector, attr) => page.$eval(selector, (el, attr) => el.getAttribute(attr), attr) page.$$attr = (selector, attr) => page.$$eval( selector, (els, attr) => els.map(el => el.getAttribute(attr)), attr ) page.$nuxt = await page.evaluateHandle(page.$nuxtGlobalHandle) page.nuxt = { async navigate(path, waitEnd = true) { const hook = page.evaluate(` new Promise(resolve => ${page.$nuxtGlobalHandle}.$once('routeChanged', resolve) ).then(() => new Promise(resolve => setTimeout(resolve, 50))) `) await page.evaluate( ($nuxt, path) => $nuxt.$router.push(path), page.$nuxt, path ) if (waitEnd) { await hook } return { hook } }, routeData() { return page.evaluate(($nuxt) => { return { path: $nuxt.$route.path, query: $nuxt.$route.query } }, page.$nuxt) }, loadingData() { return page.evaluate($nuxt => $nuxt.$loading.$data, page.$nuxt) }, errorData() { return page.evaluate($nuxt => $nuxt.nuxt.err, page.$nuxt) }, storeState() { return page.evaluate($nuxt => $nuxt.$store.state, page.$nuxt) } } return page } }