gm_node.js

gm_node.js

var express 	= require('express');
var path	 	= require('path');
var log 		= require('./libs/log')(module);
var size 		= require('request-image-size');
var fDld 		= require('fast-download');
var fs 			= require('fs');
var app 		= express();
var gm 			= require('gm');
var uuid 		= require('node-uuid');

app.get('/api', function (req, res) {
	log.info("Received request", {mp: req.query.mp, url: req.query.url});
	var fileId = uuid.v1();
	new fDld(req.query.url, {chunksAtOnce: 10}, function(error, dl) {
		if (error){throw error;}
		dl.on('start', function(dl){ log.info('Download started: ' + req.query.url); })
		dl.on('error', function(error){ throw error; });
		dl.on('end', function() {
			log.info('Download completed');
			gm(fileId)
			.size({bufferStream: true}, function(err, size) {
				if (err) throw err;
				log.info("Resize start" + fileId);
			  	this.resize(200,200);//size.width / 2, size.height / 2);
				log.info("Resize done" + fileId);
			 	this.write(fileId + '.jpg', function (err) {
  					if (!err) res.send(size);
  					else throw err;
				});
			});
		});
		dl.pipe(fs.createWriteStream(fileId));
	});
});

app.listen(1337, function(){
    console.log('Express server listening on port 1337');
});