upload a file

// Full documentation: https://docs.aws.amazon.com/AWSJavaScriptSDK/latest/AWS/S3.html#upload-property

var filePath = '/tmp/myFile.txt';
var params = {
    Bucket: bucketName,
    Key: path.basename(filePath),
    Body: fs.createReadStream(filePath)
};

var options = {
    partSize: 10 * 1024 * 1024, // 10 MB
    queueSize: 10
};

s3.upload(params, options, function (err, data) {
    if (!err) {
        console.log(data); // successful response
    } else {
        console.log(err); // an error occurred
    }
});