How Can I Connect To Database Using Playwright

Playwright is a powerful tool for browser automation, enabling robust end-to-end testing of web applications. While Playwright itself doesn't provide built-in database connectivity, you can seamlessly integrate database interactions in your Playwright scripts using additional Node.js libraries. This article will guide you through the steps to connect to a database using Playwright.

Prerequisites

1.     Node.js and NPM: Ensure you have Node.js and NPM installed on your machine. 

2.     Playwright: Install Playwright by running:

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npm install playwright

3.     Database Library: Depending on your database (e.g., MySQL, PostgreSQL, MongoDB), install the respective Node.js library. For example, for MySQL:

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npm install mysql2

Step-by-Step Guide

1. Setup Project

Create a new directory for your project and navigate into it:

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mkdir playwright-database-connection

cd playwright-database-connection  Playwright Training

 

Initialize a new Node.js project:  Playwright Course Online

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npm init -y

2. Install Dependencies

Install Playwright and the database library:  Playwright Course in Hyderabad

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npm install playwright mysql2

3. Create Database Connection

Create a new file database.js to handle the database connection:

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const mysql = require('mysql2');

 

const connection = mysql.createConnection({

  host: 'localhost',

  user: 'your-username',

  password: 'your-password',

  database: 'your-database'

});

 

connection.connect((err) => {

  if (err) throw err;

  console.log('Connected to the database!');

});

 

module.exports = connection;

4. Integrate Playwright with Database

Create a Playwright script, test.js, and include database interactions:

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const { chromium } = require('playwright');

const db = require('./database');

 

(async () => {

  const browser = await chromium.launch();

  const page = await browser.newPage();

 

  // Perform some database operation

  db.query('SELECT * FROM your_table', (err, results) => {

    if (err) throw err;

    console.log(results);

 

    // Use database results in Playwright test

    // e.g., navigate to a URL based on database value

    page.goto(`http://example.com/${results[0].some_field}`);

  });

 

  // Perform browser actions

  await page.screenshot({ path: 'example.png' });

 

  await browser.close();

  db.end();

})();

5. Run Your Script

Execute your script with Node.js:  Playwright Online Training

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node test.js

Conclusion

By integrating Playwright with a database library, you can create powerful, data-driven tests and automations. This approach enables you to retrieve data dynamically and use it within your browser automation workflows, enhancing the versatility and realism of your testing scenarios.

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