How to resize image in Node js

Question

I need to resize my images before I upload them to s3 (amazon). I tried this function but it\'s not working.

Here is the function that uploads the image.

My

Answer 1

You seem to be lacking basic concepts like "before" and data flow, but I'll try anyway.

You need to insert something between reading the file and uploading to S3. A convert process would seem like a good idea.

var args = ['beach_life-normal.jpg', '-resize', '200x200>', 'JPEG:-']
var convert = child_process.spawn('convert', args);
var s3 = new AWS.S3();

s3.putObject({
    Bucket: 'adinoauploadefile',
    Key: 'beach_life-normal.jpg',
    Body: convert.stdout
},
// ...

I'll leave the error handling, etc. to you.

Answer 2

In your example you're saving the image to S3 (s3.putObject) before resizing it (im.resize). Move the resize function before the put.

You're also not passing the image to the resize function; you'll need something like

im.resize(fileStream, { // pass in the image
      height:100,
      width:   200
 }, function(err, stdout, stderr){
      if (err) throw err;
      console.log('resized image to fit within 200x200px');
 });

Check the docs for the library you're using for the correct syntax.

Answer 3

use this code.

im.convert(['kittens.jpg', '-resize', '25x120', 'kittens-small.jpg'], 
function(err, stdout){
  if (err) throw err;
  console.log('stdout:', stdout);
});

In place of kittens.jpg ,you can give path of image or in your case you can use fileStream and kittens-small.jpg will be name of resized image name.