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/**
* Copyright 2017 Google Inc. All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* @fileoverview Search developers.google.com/web for articles tagged
* "Headless Chrome" and scrape results from the results page.
*/
'use strict';
const puppeteer = require('puppeteer');
(async () => {
const browser = await puppeteer.launch();
const page = await browser.newPage();
await page.goto('https://developers.google.com/web/');
// Type into search box.
await page.type('.devsite-search-field', 'Headless Chrome');
// Wait for suggest overlay to appear and click "show all results".
const allResultsSelector = '.devsite-suggest-all-results';
await page.waitForSelector(allResultsSelector);
await page.click(allResultsSelector);
// Wait for the results page to load and display the results.
const resultsSelector = '.gsc-table-result a.gs-title[href]';
await page.waitForSelector(resultsSelector);
// Extract the results from the page.
const links = await page.evaluate(resultsSelector => {
const anchors = Array.from(document.querySelectorAll(resultsSelector));
return anchors.map(anchor => {
const title = anchor.textContent.split('|')[0].trim();
return `${title} - ${anchor.href}`;
});
}, resultsSelector);
console.log(links.join('\n'));
await browser.close();
})();
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