Updated Download S3 File | Spring Boot

: A bucket containing the files you wish to download.

public InputStream getFileStream(String bucketName, String key) { GetObjectRequest getObjectRequest = GetObjectRequest.builder() .bucket(bucketName) .key(key) .build(); return s3Client.getObject(getObjectRequest); } Use code with caution. Step 3: Create the REST Controller spring boot download s3 file

@Configuration public class S3Config { @Value("${aws.region}") private String region; @Bean public S3Client s3Client() { return S3Client.builder() .region(Region.of(region)) .credentialsProvider(DefaultCredentialsProvider.create()) .build(); } } Use code with caution. Step 2: Implement the Download Logic : A bucket containing the files you wish to download

: Always wrap your S3 calls in a try-catch block to handle NoSuchKeyException or network timeouts. Step 2: Implement the Download Logic : Always

: An Access Key and Secret Key with S3:GetObject permissions.

public byte[] downloadFile(String bucketName, String key) { GetObjectRequest getObjectRequest = GetObjectRequest.builder() .bucket(bucketName) .key(key) .build(); ResponseBytes objectBytes = s3Client.getObjectAsBytes(getObjectRequest); return objectBytes.asByteArray(); } Use code with caution. Option B: Streaming the Download