How to Automate OAuth Login with Playwright

August 29, 2025

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In today’s fast-paced software industry, automation testing has become a crucial skill for IT professionals. Among the modern tools, Playwright stands out as a powerful end-to-end testing framework that supports multiple browsers and languages, making it a preferred choice for developers and testers worldwide. If you are aspiring to build a successful career in automation testing, IHub Talent is the best Playwright Course Institute in Hyderabad.

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How to Automate OAuth Login with Playwright

OAuth login (also known as social login or third-party login) is widely used across modern applications, enabling users to log in using Google, Facebook, GitHub, or other identity providers. Automating OAuth login flows in Playwright requires handling redirection, pop-ups, and authentication tokens securely. Below is a simplified approach:

1. Understanding the OAuth Flow

User clicks on “Login with Google/Facebook/GitHub.”

Application redirects to the OAuth provider’s login page.

After successful login, the provider redirects back to the application with an access token.

Application verifies the token and grants access.

2. Setting Up Playwright Project

First, install Playwright:

npm init playwright@lates

This sets up the Playwright project with the required configuration.

3. Automating OAuth Login

Here’s a sample Playwright script to handle an OAuth login (example: Google Login):

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

test('OAuth login with Google', async ({ page, context }) => {

// Navigate to application login page

await page.goto('https://your-app-url.com/login');

// Click on "Login with Google"

await page.click('button#google-login');

// Wait for popup and handle Google login

const [popup] = await Promise.all([

context.waitForEvent('page'),

page.click('button#google-login')

]);

await popup.fill('input[type="email"]', 'your-email@gmail.com');

await popup.click('button:has-text("Next")');

await popup.fill('input[type="password"]', 'your-password');

await popup.click('button:has-text("Next")');

// Wait for redirection back to the app

await popup.waitForURL('**/dashboard');

// Validate successful login

await expect(page.locator('h1')).toContainText('Welcome');

});

4. Best Practices

Use environment variables for storing sensitive credentials instead of hardcoding.

Mock OAuth flows in test environments when real login is not required.

Leverage API tokens to skip repetitive logins during automated test runs.

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If you are serious about mastering automation testing and building a rewarding career, join IHub Talent’s Playwright Course in Hyderabad and step confidently into the world of test automation.

Managing Auth Tokens in Playwright

Testing Login Functionality in Playwrigh

Playwright Test Hooks Explained

Using Fixtures for Efficient Testing

Test Data Management in Playwright

Creating Reusable Functions in Playwright

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