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);