Image upload to aws s3 bucket after resizing with graphicMagic

I am using graphicMagic to resize an image before uploading it to aws s3 bucket. The code below uploads an image with 0 byte size, though the response from s3 upload is fine. The following code is what I am doing. The path is the path of the image that needs to be uploaded. The key is the hashed key to make the file name unique.

gm(path)
  .resize(100,100)
  .stream(function(err, stdout, stderr){
      if(err){
              console.log("Error resizing image. Message:",err);
      }
      else{
          console.log(stdout);
          var data = {
              Bucket: 'my-bucket',
              Key: key+"_thumb.jpg",
              Body: stdout,
              ACL: "public-read",
              ContentType:"image/jpeg"
          };
          p1 = s3.upload(data).promise();
      }
  });

I think stdout is not the correct thing to do, but then how do I make it work.

Your code is fine, you're missing gm dependencies: imagemagick or graphicsmagick, if one of those are missing, no error will be triggered, but you will get a 0 byte file.

Depending on your OS:

Ubuntu/Debian

sudo apt-get install graphicsmagick
# or
sudo apt-get install imagemagick

Mac OS

brew install graphicsmagick
brew install imagemagick

For windows or other OS, check:

• GraphicsMagick
• ImageMagick.