CORE MODULES ONLY v1.0.0

File Shifter

A high-performance LAN relay server built to master the Node.js Event Loop, Writable/Readable Streams, and low-level HTTP parsing.

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Project Intent

File Shifter was built as an educational deep-dive into Node.js internals. By stripping away frameworks like Express, I manually implemented request/body parsing, cookie handling, and routing. The goal was to understand exactly how the server handles backpressure and binary data at the system level.

Technical Breakthroughs

Live Relay Mode

Recipients can start downloading/streaming a file while it's still being uploaded by the sender, acting as a pass-through pipe.

Identity Management

Manual cookie parsing and device verification logic implemented without third-party middleware.

Network Awareness

Dynamic QR code generation and IP tracking to ensure the server link remains valid across LAN changes.

Buffer Efficiency

Utilizing PassThrough streams to ensure minimal RAM usage even when transferring multi-gigabyte files.

Deployment & Setup

Windows (Automated)

Uses a custom PowerShell installer to prepare the Node.js environment.

Download from here File-Shifter

Run install.cmd (Extract first)

Execute App.bat

Linux (Manual)

sudo apt install nodejs

npm install && npm start