File Manager - Asynchronous Media Orchestrator

Backend (.NET + S3 + RabbitMQ)

About

A service suite that ingests files from multiple sources, resizes/manipulates images, and stores results in S3 buckets, providing both a REST API for synchronous uploads and a queue listener for bulk async processing.

My Role

Built a central media orchestrator handling uploads, resizing, and multi-size storage in S3. Supported multiple input types (URLs, temp uploads, existing S3 assets) and async completion via queues. Implemented retry and fallback logic between SkiaSharp and ImageMagick for resilient image processing.

Core Capabilities

• Source flexibility: URL downloads, direct uploads, or existing S3 assets
• Size profiles with SkiaSharp resizing and ImageMagick fallback (3 retries)
• Async queue workflow with RabbitMQ completion responses
• REST API for synchronous uploads and bucket metadata

Architecture

• ASP.NET Core API with SimpleInjector DI
• RabbitMQ queue listener as BackgroundService with scoped lifetimes
• S3 repository for temp and permanent bucket management
• SkiaSharp + ImageMagick CLI for image manipulation

Tech Stack