aws-sdk-java-v2-s3

# AWS SDK for Java 2.x - Amazon S3 ## Overview Provides patterns for S3 operations: bucket management, object upload/download with multipart support, presigned URLs, S3 Transfer Manager, and S3-specific configurations using AWS SDK for Java 2.x. ## When to Use - Creating, listing, or deleting S3 buckets with proper configuration - Uploading or downloading objects from S3 with metadata and encryption - Working with multipart uploads for large files (>100MB) with error handling - Generating presigned URLs for temporary access to S3 objects - Copying or moving objects between S3 buckets with metadata preservation - Setting object metadata, storage classes, and access controls - Implementing S3 Transfer Manager for optimized file transfers - Integrating S3 with Spring Boot applications for cloud storage ## Quick Reference | Operation | Method | Notes | |-----------|--------|-------| | Create bucket | `createBucket()` | Wait with `waiter().waitUntilBucketExists()` | | Upload object | `putObject()` | Use `RequestBody.fromFile()` | | Download object | `getObject()` | Streams to file or memory | | Delete objects | `deleteObjects()` | Batch up to 1000 keys | | Presigned URL | `presigner.presignGetObject()` | Max 7 days expiration | ### Storage Classes | Class | Use Case | |-------|----------| | `STANDARD` | Frequently accessed data | | `STANDARD_IA` | Infrequently accessed data | | `GLACIER` | Long-term archive | | `INTELLIGENT_TIERING` | Automatic cost optimization | ## Inst...