This is an API that can be used in two different ways. The first, as a simple placeholder API that allows us to place images into our frontend with the size set via url parameters. The second use case is as a library to serve properly scaled versions of our images to the frontend to reduce page load size.

• Install: npm install
• Build: npm run build
• Lint: npm run lint
• Prettify: npm run prettify
• Run unit tests: npm run test
• Start server: npm run start

http://localhost:3000/api

This endpoint will shows the query arguments for resizing an image and available image name.

http://localhost:3000/api/images?filename=fjord&width=200&height=200

Will scale the fjord image to 200 by 200 pixels and store the resulting image.

On subsequent calls will serve the resized image instead of resizing the original again.

http://localhost:3000/api/images?filename=fjord&width=200

Missing height argument will lead to missing input error.

http://localhost:3000/api/images?filename=fjord&width=-200&height=200

The invalid input will lead to invalid argument error.

• Images are served from assets/full. Further images can be put into that directory.
• Image thumbs will be stored in assets/thumb and can be deleted from there to verify that in that case they will be re-created on subsequent calls to the same endpoint.