Automate form fillup using puppeteer and js.md

const puppeteer = require('puppeteer');

(async () => {
  // Launch a new browser instance
  const browser = await puppeteer.launch();

  // Create a new page instance
  const page = await browser.newPage();

  // Navigate to the login page
  await page.goto('https://apps.fortnox.se/api/login-fortnox-id/web-login-v1');

  // Fill in the username field
  const usernameInput = await page.$('#Username'); // your query how to extract the username input field
  await usernameInput.type('your-username-here');

  // Click the next button
  const nextButton = await page.$('#NextButton'); // your query how to extract the next button 
  await nextButton.click();

  // Wait for the page to load after clicking the next button
  await page.waitForNavigation();

  // Close the browser instance
  await browser.close();
})();