Imager multer storage engine permit to resize and upload an image to AWS S3.
This project is mostly an integration piece for existing code samples from Multer's storage engine documentation. And was inspired from multer-s3 and graphicsmagick-stream
apt-get install build-essential libgraphicsmagick++1-dev libarchive-dev
npm install multer-imager --save
Tested with s3rver instead of your actual s3 credentials. Doesn't require a real account or changing of hosts files. Includes integration tests ensuring that it should work with express + multer.
npm test
var express = require('express');
var app = express();
var multer = require('multer');
var imager = require('multer-imager');
var upload = multer({
storage: imager({
dirname: 'avatars',
bucket: 'bucket-name',
accessKeyId: 'aws-key-id',
secretAccessKey: 'aws-key',
region: 'us-east-1',
filename: function (req, file, cb) { // [Optional]: define filename (default: random)
cb(null, Date.now()) // i.e. with a timestamp
}, //
gm: {
pool: 5, // how many graphicsmagick processes to use
format: 'png', // format to convert to
scale: {
width: 200, // scale input to this width
height: 200, // scale input this height
type: 'contain' // scale type (either contain/cover/fixed)
},
crop: {
width: 200, // crop input to this width
height: 200, // crop input this height
x: 0, // crop using this x offset
y: 0 // crop using this y offset
},
rotate: 'auto', // auto rotate image based on exif data
// or use rotate:degrees
density: 300, // set the image density. useful when converting pdf to images
}
})
});
// Cf.: https://github.com/expressjs/multer/blob/master/README.md
app.post('/upload', upload.array('file', 1), function(req, res, next){
console.log(req.files); // Print upload details
res.send('Successfully uploaded!');
});