aws-sdk-java-v2-s3

SKILL.md

S3 object storage patterns and operations using AWS SDK for Java 2.x.

Covers bucket creation, object uploads/downloads, multipart transfers, presigned URLs, and S3 Transfer Manager for optimized file handling

Includes synchronous and asynchronous client setup with configurable retry logic, timeouts, and connection pooling

Provides Spring Boot integration with configuration classes, service layer patterns, and async/reactive workflows

Supports advanced operations: metadata and encryption, batch deletions, cross-bucket copying, and lifecycle management

Best practices for security (IAM roles, server-side encryption), performance (connection reuse, async operations), and cost optimization (storage class selection, lifecycle policies)

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