Trying to upload data stream in Amazon S3

Question

I tried to push a QR code of SVG to S3 from my node application.
I believe I should be uploading a Buffer to S3. Whenever I try to inspect the qrResult, I don't get to see one anywhere. 
Guess I'm fundamentally poor with the concept of writeStreams, and how should I pipe the data to an S3 upload, I am not able to resolve this, tried several times. This is what I am using there: 

let fileName = 'qrCode'

let qrCode = Qr.image('The ultimate test', { type: 'svg' }); 
let output = fs.createWriteStream(fileName)
let qrResult = qrCode.pipe(output)


let s3bucket = new Aws.S3({
   accessKeyId: env.AWS_ACCESS_KEY
   secretAccessKey: env.AWS_SECRET,
   Bucket: env.S3_BUCKET_NAME,
});

let params = {
   Bucket: env.S3_BUCKET_NAME,
   Key: fileName,
   Body: qrResult,
 };

s3bucket.upload(params, function (err, qrResult) {
   if (err) {
     console.log('error in callback');
     console.log(err);
   }

   console.log('success');
   console.log(qrResult);
});

Can anyone help me with this? 

Answer 1

Try adding the ContentType & ACL in your params like this:

let params = {
  Bucket: env.S3_BUCKET_NAME,
  Key: fileName,
  Body: qrResult,
  ContentType: 'image/svg+xml',
  ACL: 'public-read'
};

Also, I can't see file object in your code.

Also, use putObject rather than upload like:

s3bucket.putObject(params... 

//(Try using the above type of syntax)