chrome-cdp-controller

Command-Based Execution

Create a JSON file with commands:

commands.json:

[
  {"type": "navigate", "url": "https://www.baidu.com"},
  {"type": "wait", "seconds": 2},
  {"type": "screenshot", "path": "/tmp/screenshot.png"},
  {"type": "evaluate", "script": "document.title"}
]

Execute:

node scripts/cdp_controller.js --ws "ws://127.0.0.1:9222/devtools/browser/..." --commands commands.json

Node.js API

const { CDPController } = require('./scripts/cdp_controller.js');
(async () => {
  const controller = new CDPController('ws://127.0.0.1:9222/devtools/browser/...');
  await controller.connect();
  
  // Navigate
  await controller.navigate('https://www.taobao.com');
  
  // Fill form
  await controller.fill('#q', 'iPhone');
  await controller.press('Enter');
  await controller.wait(3);
  
  // Extract data
  const result = await controller.evaluate(
    Array.from(document.querySelectorAll('.item'))
      .slice(0, 10)
      .map(item => ({
        title: item.querySelector('.title')?.textContent.trim(),
        price: item.querySelector('.price')?.textContent.trim()
      }))
  );
  console.log(result.result);
  
  // Intercept network
  await controller.startIntercept('*api*');
  // ... perform actions ...
  const responses = controller.getInterceptedResponses();
  
  await controller.close();
})();