Obtenha a imagem do S3 Bucket JavaScript
let params = { Bucket: config.bucket, Key: req.params.imageId };
s3.getObject(params, function(err, data) {
res.writeHead(200, {'Content-Type': 'image/jpeg'});
res.write(data.Body, 'binary');
res.end(null, 'binary');
});
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