How can I use Puppeteer to access local storage?

How can I use Puppeteer to access local storage in my web application?

You can access local storage in Puppeteer by using the page.evaluate method to run JavaScript in the context of the page.

Can you show me a code example for that?

Sure! Here's a simple example:

const puppeteer = require('puppeteer');

(async () => {
  const browser = await puppeteer.launch();
  const page = await browser.newPage();
  await page.goto('https://example.com');

  // Access local storage
  const localStorageData = await page.evaluate(() => {
    return JSON.stringify(localStorage);
  });

  console.log(localStorageData);
  await browser.close();
})();

What if I want to set an item in local storage?

You can set an item in local storage using the same page.evaluate method. Here's how:

await page.evaluate(() => {
  localStorage.setItem('key', 'value');
});