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- Angular Elements Advanced Techniques
- TypeScript - the Basics
- Cloud Scheduler for Firebase Functions
- Testing Firestore Security Rules With the Emulator
- How to Use Git and Github
- Infinite Virtual Scroll With the Angular CDK
- Build a Group Chat With Firestore
- Async Await Pro Tips
- Sortable Drag and Drop Lists in Firestore
How to Use Puppeteer With Firebase Cloud FunctionsEpisode 130 written by Jeff Delaney
Health Check: This lesson was last reviewed on and tested with these packages:
- CloudFunctions v
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Source code for How to Use Puppeteer With Firebase Cloud Functions on Github
Cloud Functions v2.0 provides support for Puppeteer, which means using headless chrome in a serverless environment is now possible. In the following lesson, you will learn how to setup Puppeteer in a Firebase Function and use it to perform serverside rendering of any site that lives on internet.
Potential use cases for headless chrome in Firebase include:
- Serverside Rendering and Prerendering
- Webcrawlers and Scrapers
- End-to-End and Performance Testing
Let’s make sure we have the latest version of the Firebase CLI Tools and initialize functions.
npm install [email protected] -g
Puppeteer requires Node8 or greater, so we need to setup that runtime in the
package.json in the functions directory.
Puppeteer is a web browser, hence it uses the DOM. By default, the
tsconfig.json for functions does not include the the DOM lib - let’s change that.
Puppeteer requires a good amount of memory. Let’s setup an HTTP function and give it a higher memory allocation by chaining
import * as functions from 'firebase-functions';
Notice how the
render function below has 1GB of memory on runs on Node8
This function is essentially a proxy browser that can be used by passing the desired url as a query parameter:
export const render = functions
And that’s all there is to it. You now have access to all the awesomeness of Puppeteer in a Firebase Cloud Function.