Groker - Log Pattern Studio

Groker is a full‑stack GROK expression debugger for rapid log parsing, pattern exploration, and capture inspection. It ships with a React frontend, a Node/Express backend, and file‑based pattern libraries.

Highlights

• GROK matcher with compiled regex visibility
• Named capture breakdown with type parsing and character counts
• Custom pattern definitions per session
• Pattern Library grouped by files (sub‑tabs)
• Debug diagnostics for hidden characters and regex tests

Quick Start

npm install
npm run dev

Open:

• Client: http://localhost:5173
• API: http://localhost:3001

Scripts

• npm run dev — run backend + frontend
• npm run dev:groker-server — backend only
• npm run dev:groker-client — frontend only
• npm run build — build frontend
• npm run start — run backend + serve built frontend

Pattern Libraries

Pattern files live in patterns/. Each file becomes a sub‑tab in the Pattern Library UI. Format per line:

PATTERN_NAME REGEX

Documentation

• Setup guide: SETUP.md
• API reference: APIS.md
• Changelog: CHANGELOG.md

License

TBC