express-cache-gm-image

Express middleware to resize and crop pictures from url parameters with gm, cache and express.static.

Example

Url: http://127.0.0.1:3000/images/example.png?w=50&h=100&r=1&c=2&f=1&y=20

Node.js code:

import express from 'express'

import ImageMiddleware from 'express-cache-gm-image'

const staticOptions = { // one settings for many static instances
  redirect: false,
  dotfiles: 'ignore',
  maxAge: 86400000
}

const app = express()

app.get('/*', ImageMiddleware({
  root: './public',
  cacheDir: './public/cache/imager',
  staticOptions: staticOptions,
  nextFunction: function (req, res) {
    return res.status(404).send('Not Found')
  }
}))

app.listen(3000, function () {
  console.log('Example app listening on port 3000!')
})

Nginx config:

location ^~ /cache {
  deny all;
  return 404;
}

location ~* .(png|jpg|jpe?g)$ {
  root /var/www/site/cache/imager;
  if ($is_args = '') {
    root /var/www/site;
  }
  try_files /$args/$uri @node;
}