How do you manage cookies in Playwright?

// Get all cookies for the current context
const cookies = await context.cookies();
console.log(cookies);
// [{ name: 'session', value: 'abc123', domain: 'myapp.com', ... }]

// Get cookies for a specific URL
const cookies = await context.cookies(['https://myapp.com']);

// Find a specific cookie
const sessionCookie = cookies.find(c => c.name === 'session_id');
console.log(sessionCookie?.value);

await context.addCookies([
  {
    name: 'auth_token',
    value: 'test-jwt-token-123',
    domain: 'myapp.com',
    path: '/',
    httpOnly: true,
    secure: true,
    sameSite: 'Lax',
  },
  {
    name: 'user_preference',
    value: 'dark_mode',
    domain: 'myapp.com',
    path: '/',
  }
]);

// Clear all cookies
await context.clearCookies();

// Clear cookies for a specific domain (Playwright v1.43+)
await context.clearCookies({ domain: 'ads.example.com' });

import { test, expect } from '@playwright/test';

test('set auth cookie before test', async ({ page, context }) => {
  // Set auth cookie before navigating (bypasses login UI)
  await context.addCookies([{
    name: 'session_id',
    value: 'valid-session-token',
    domain: 'localhost',
    path: '/',
  }]);

  // Navigate directly to authenticated page
  await page.goto('/dashboard');
  await expect(page.getByRole('heading')).toHaveText('Dashboard');
});

test('authenticated via cookie', async ({ context, page }) => {
  // Set the session cookie
  await context.addCookies([{
    name: 'connect.sid',
    value: 'valid_session_value',
    domain: 'localhost',
    path: '/',
    httpOnly: true,
  }]);

  await page.goto('/protected-page');
  // Should access the page without being redirected to login
  await expect(page).not.toHaveURL('/login');
  await expect(page.locator('.user-profile')).toBeVisible();
});

test('login sets session cookie', async ({ page, context }) => {
  await page.goto('/login');
  await page.getByLabel('Email').fill('user@test.com');
  await page.getByLabel('Password').fill('password');
  await page.getByRole('button', { name: 'Sign in' }).click();
  await expect(page).toHaveURL('/dashboard');

  // Verify the session cookie was set
  const cookies = await context.cookies();
  const sessionCookie = cookies.find(c => c.name === 'session_id');
  expect(sessionCookie).toBeTruthy();
  expect(sessionCookie!.httpOnly).toBe(true);
});