luke-pomeroy / imageapi

A Node.js image API - provide a URL encoded path to an image, and the API will return a resized version of the image 'on-the-fly' based on the image size specified in the URL parameters

imageAPI

A basic Node.js image API - provide a URL encoded path to an image, and the API will return a resized version of the image 'on-the-fly' based on the image size specified in the URL parameters.

server.js

This file uses Express to listen on port 8000 for HTTP/S requests, and also provides basic logging functionality for any errors.

URL Parameters

• width of desired image in pixels (aspect ratio maintained and filled with white space so image returned is always square)
• height of desired image in pixels
• format of desired image (eg png, jpg). 'png' is the default.
• path to the image to be resized (the path must be URL encoded)

resize.js

This file uses filesystem and sharp to fetch and resize the image. The result is piped via a ReadStream to form the response (a resized image). If the image file cannot be found or read, an error is logged and a 'no image available' image (set via a parameter within this file) is returned instead.

Use

Can be run as a background service via node-linux, node-windows or node-mac.

ToDo

• Add authentication
• Add background colour to URL parameters.
• Add image rotation to URL parameters.