Express thumbnail is a Express framework middleware for creation of thumbnails on the fly. It automatically creates a thumbnails by adding query parameters onto a image url.
This module use lwip, which didn't require external runtime dependencies for image processing. It means you don't have to install anything else on your system.
$ npm install express-thumbnail
var express = require('express');
var expressThumbnail = require('express-thumbnail');
var app = express();
...
app.use(expressThumbnail.register(__dirname + '/images'));
<img src="foo.png?thumb=50x50">
rootDir
path to images root directory.
options
(optional) an object of options. Available options:
cacheDir
The location where converted images will be stored. Default is[rootDir]/.thumb
.