Taken is a Website screenshot taker which takes the url as input and provide the image of the website. An event driven arthitecture is used to handle up a load of 1k requests per second.
- TypeScript
- Nodejs
- Postgres
- Typeorm
- Redis
- BullMQ
- SocketIO
- Change connection settings in
typeorm.config.jsonfile located in root project directory
npm install
# or
yarn install
npm run build
# or
yarn build
# Normal start: one server
npm start
#or
yarn start
# Deployment Start: Cluster
npm run start:cluster
#or
yarn start:cluster- Each request will be registered in redis job queue
- Workers process and serve the job asynchronously from the queue
- A workers is operating a squence of service:
- Image Capture: uses puppeteer as core as headless driver driver for screenshoting
- Image Save: uses Postgress database to save the image binary in
bytea
- Displaying the image in a html template on get request
- Load test has been tested using k6 with 1500 virtual user requesting the server in the save time
- It could Run as of clustered pool of server workers ensuring our app is a bullet proof!