Using Puppeteer to Upload a PDF to Supabase

Introduction
Puppeteer is a powerful Node.js library that provides a high-level API to control headless Chrome or Chromium browsers. It is commonly used for web scraping, automated testing, and generating PDFs from web pages. Supabase, on the other hand, is an open-source Firebase alternative that offers a suite of backend services, including storage. This guide explores how to use Puppeteer to generate a PDF and upload it to Supabase storage, providing a seamless integration for your web applications.

Generating a PDF with Puppeteer
Puppeteer can be used to generate PDFs from HTML content. This is particularly useful for creating reports, invoices, or any document that needs to be shared in a PDF format. Here’s a basic example of how to generate a PDF using Puppeteer:

 

 

const puppeteer = require('puppeteer');

(async () => {
  const browser = await puppeteer.launch();
  const page = await browser.newPage();
  await page.goto('https://example.com');
  await page.pdf({ path: 'example.pdf', format: 'A4' });

  await browser.close();
})();

This script launches a headless browser, navigates to a webpage, and saves it as a PDF file named `example.pdf`.

Uploading the PDF to Supabase
Once you have generated the PDF, the next step is to upload it to Supabase storage. Supabase provides a straightforward API for file uploads, which can be accessed using the `supabase-js` library. Here’s how you can upload a PDF to Supabase:

 

 

 

 

const { createClient } = require('@supabase/supabase-js');
const fs = require('fs');

const supabaseUrl = 'https://your-supabase-url.supabase.co';
const supabaseKey = 'your-anon-key';
const supabase = createClient(supabaseUrl, supabaseKey);

(async () => {
  const fileContent = fs.readFileSync('example.pdf');
  const { data, error } = await supabase
    .storage
    .from('your-bucket-name')
    .upload('example.pdf', fileContent, { contentType: 'application/pdf' });

  if (error) {
    console.error('Error uploading PDF:', error);
  } else {
    console.log('PDF uploaded successfully:', data);
  }
})();

In this example, the PDF file is read from the filesystem and uploaded to a specified bucket in Supabase storage. Ensure that you replace `'your-bucket-name'`, `'your-supabase-url'`, and `'your-anon-key'` with your actual Supabase details.

Conclusion
Integrating Puppeteer with Supabase allows you to automate the process of generating and storing PDFs, making it an efficient solution for applications that require document generation and storage. By following the steps outlined in this guide, you can leverage the capabilities of both Puppeteer and Supabase to enhance your web applications. Whether you're generating reports, invoices, or any other type of document, this integration provides a robust and scalable solution.