hook.io image hook for manipulating images using ImageMagick

image.js

/*

  http://hook.io/ZucchiniZe/image

*/
 
var gm = require('gm');
 
module['exports'] = function image (hook, callback) {
 
  var imageReadStream;
 
  hook.debug('Opening read stream to image: ' + hook.params.image);
  if (hook.streaming) {
   readStream = hook.req;
  }
  else if (hook.params.image && hook.params.image._readableState.buffer.length > 0) {
    imageReadStream = hook.params.image;
  } else {
    imageReadStream = hook.open(hook.params.url);
  }
 
  hook.debug('Opening write stream to blur transform');
  var blur = hook.post('http://hook.io/Marak/image/blur?x=' + hook.params.x);
 
  hook.debug('Writing response headers');
  hook.res.writeHead(200, { 'Content-Type': 'image/png' });
  
  hook.debug('Piping source image through transform streams');
  imageReadStream
   .pipe(blur)
   
 
};
 
module['exports'].schema = {
  "url": {
    "type": "string",
    "default": "http://hook.io/img/logo.png"
  },
  "image": {
    "type": "file"
  },
  "x": {
    "type": "number",
    "default": 2
  }
};