How do I set custom headers for HTTP requests in Nightmare?

Nightmare is a high-level browser automation library for Node.js. It is built on top of Electron, which is a framework for creating native applications with web technologies like JavaScript, HTML, and CSS.

To set custom headers for HTTP requests in Nightmare, you can use the .header() method to specify the header name and value. Alternatively, you can use .headers() method to set multiple headers at once.

Here's an example of how to use the .header() method to set a single custom header:

const Nightmare = require('nightmare');
const nightmare = Nightmare({ show: true });

nightmare
  .goto('https://example.com')
  .header('Custom-Header', 'CustomValue')
  .then(/* ... */)
  .catch(error => {
    console.error('Error:', error);
  });

And here's an example using .headers() to set multiple custom headers:

const Nightmare = require('nightmare');
const nightmare = Nightmare({ show: true });

nightmare
  .goto('https://example.com')
  .headers({
    'Custom-Header-One': 'CustomValueOne',
    'Custom-Header-Two': 'CustomValueTwo'
  })
  .then(/* ... */)
  .catch(error => {
    console.error('Error:', error);
  });

Remember to install Nightmare before trying to run the code:

npm install nightmare

Note: As of the time of this writing, the Nightmare project has not been actively maintained. Depending on your project's requirements, you may want to consider using other automation tools such as Puppeteer, which is now recommended by many developers for browser automation and web scraping in Node.js. Puppeteer works with headless Chrome or Chromium and is actively maintained by the Chrome DevTools team.

Here's an example of setting custom headers with Puppeteer:

const puppeteer = require('puppeteer');

(async () => {
  const browser = await puppeteer.launch();
  const page = await browser.newPage();

  await page.setExtraHTTPHeaders({
    'Custom-Header-One': 'CustomValueOne',
    'Custom-Header-Two': 'CustomValueTwo'
  });

  await page.goto('https://example.com');
  // Do something on the page

  await browser.close();
})();

Before running the Puppeteer example, make sure to install it using npm:

npm install puppeteer

It is always a good practice to check the current state of a library or tool before starting a new project, to ensure that it will have ongoing support and maintenance.