AmazonS3 putObject with InputStream length example

Question

I am uploading a file to S3 using Java - this is what I got so far:

AmazonS3 s3 = new AmazonS3Client(new BasicAWSCredentials(\"XX\",\"YY\"));

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Answer 1

While writing to S3, you need to specify the length of S3 object to be sure that there are no out of memory errors.

Using IOUtils.toByteArray(stream) is also prone to OOM errors because this is backed by ByteArrayOutputStream

So, the best option is to first write the inputstream to a temp file on local disk and then use that file to write to S3 by specifying the length of temp file.