node download s3 file
const AWS = require('aws-sdk');
AWS.config.update(
{
accessKeyId: "....",
secretAccessKey: "...",
region: 'ap-southeast-1'
}
);
const s3 = new AWS.S3();
const options = {
Bucket : '/bucket-url',
Key : fileKey,
};
const fileStream = s3.getObject(options).createReadStream();
fileStream.pipe(res);