文档浏览器与 CrawlAgent Browser通过 Puppeteer 连接

Puppeteer

Agent Browser 提供了一个高性能的无服务器平台,旨在简化从动态网站提取数据的流程。通过与 Puppeteer 的无缝集成,开发者无需专用服务器即可运行、管理和监控无头浏览器,从而实现高效的网页自动化和数据采集。

安装必要的库

首先,安装 puppeteer-core,这是 Puppeteer 的一个轻量级版本,专为连接到现有浏览器实例而设计:

npm install puppeteer-core

编写代码连接到 Agent Browser

在你的 Puppeteer 代码中,使用以下方式连接到 Agent Browser:

const { Puppeteer } = require('@scrapeless-ai/sdk');
 
(async () => {
    const browser = await Puppeteer.connect({
        apiKey: 'Your API key',
        sessionName: 'sdk_test',
        sessionTTL: 180,
        proxyCountry: 'US',
        sessionRecording: true,
        defaultViewport: null
    });
 
    const page = await browser.newPage();
    await page.goto('https://www.scrapeless.com');
    console.log(await page.title());
    await browser.close();
})();

这样你就可以充分利用 Agent Browser 的基础设施,包括可扩展性、IP 轮换和全球访问能力。

实用示例

以下是集成 Agent Browser 后一些常见的 Puppeteer 操作:

  1. 导航与页面内容提取
const page = await browser.newPage();
await page.goto('https://www.example.com');
console.log(await page.title());
const html = await page.content();
console.log(html);
await browser.close();
 
  1. 截取屏幕截图
const page = await browser.newPage();
await page.goto('https://www.example.com');
await page.screenshot({ path: 'example.png' });
console.log('Screenshot saved as example.png');
await browser.close();
 
  1. 运行自定义代码
const page = await browser.newPage();
await page.goto('https://www.example.com');
const result = await page.evaluate(() => document.title);
console.log('Page title:', result);
await browser.close();
 
  1. 模拟鼠标点击。
const { createPuppeteerCDPSession } = require('@scrapeless-ai/sdk');
// ... connect to Agent Browser as shown above
const cdpSession = await createPuppeteerCDPSession(page);
await cdpSession.realClick('button[type="submit"]');
  1. 模拟键盘输入。
const { createPuppeteerCDPSession } = require('@scrapeless-ai/sdk');
// ... connect to Agent Browser as shown above
const cdpSession = await createPuppeteerCDPSession(page);
await cdpSession.realFill('#login-email', 'scrapeless@gmail.com');
  1. 使用 Scrapeless Agent 获取当前页面 URL
const { createPuppeteerCDPSession } = require('@scrapeless-ai/sdk');
// ... connect to Agent Browser as shown above
const cdpSession = await createPuppeteerCDPSession(page);
const { error, liveURL } = await cdpSession.liveURL();
  1. 解决图片验证码
const { createPuppeteerCDPSession } = require('@scrapeless-ai/sdk');
// ... connect to Agent Browser as shown above
const cdpSession = await createPuppeteerCDPSession(page);
await cdpSession.imageToText({
  imageSelector: '.captcha__image',
  inputSelector: 'input[name="captcha"]',
  timeout: 30000,
});
  1. 禁用自动验证码求解
const { createPuppeteerCDPSession } = require('@scrapeless-ai/sdk');
// ... connect to Agent Browser as shown above
const cdpSession = await createPuppeteerCDPSession(page);
await cdpSession.disableCaptchaAutoSolve();
  1. 使用指定选项手动求解验证码
const { createPuppeteerCDPSession } = require('@scrapeless-ai/sdk');
// ... connect to Agent Browser as shown above
const cdpSession = await createPuppeteerCDPSession(page);
await cdpSession.solveCaptcha();
  1. 等待页面上检测到验证码
const { createPuppeteerCDPSession } = require('@scrapeless-ai/sdk');
// ... connect to Agent Browser as shown above
const cdpSession = await createPuppeteerCDPSession(page);
await cdpSession.waitCaptchaDetected({ timeout: 30000 });
  1. 等待验证码被求解(成功或失败)
const { createPuppeteerCDPSession } = require('@scrapeless-ai/sdk');
// ... connect to Agent Browser as shown above
const cdpSession = await createPuppeteerCDPSession(page);
await cdpSession.waitCaptchaSolved({ timeout: 30000 });