Use NodeJS AWS SDK to upload a file to S3 with server-side encryption; uses environment for AWS creds

s3upload.js

var AWS = require('aws-sdk');
var fs = require('fs');

var bucketName = 'my-bucket-name';
var bucketRegion = 'us-gov-west-1';
var file = 'PDFSCANS/AGILE_5_page.pdf';
var key = 'doc_pdf/CHRISJSnocreds.pdf';

AWS.config.update({
    region: bucketRegion
});


var fileStream = fs.createReadStream(file);
fileStream.on('error', function (err) {
    if (err) { throw err; }
});

fileStream.on('open', function () {
    var s3 = new AWS.S3();
    s3.putObject({
        Bucket: bucketName,
        Key: key,
        Body: fileStream,
        ServerSideEncryption: 'AES256',
        Metadata: { 'docId': 'DOCID', 'docKey': 'XYZZY', 'index': 'pdf' }
    }, function (err) {
        if (err) { throw err; }
    });
});