Nyaya

Nyaya is a lightweight legal assistant demo with:

• A Go backend that performs retrieval over IPC sections and judgments
• A React + Vite frontend to submit queries and display grounded answers

Repository layout

• backend-go - RAG-style retrieval API (/health, /api/retrieve, /api/ingest)
• client - web UI for querying the backend

Prerequisites

• Go 1.24+
• Node.js 20+
• npm 10+

Quick start

1. Start backend

cd backend-go
go run ./cmd/server

Defaults:

• PORT=5000
• NYAYA_DATA_DIR=./data

2. Start frontend

Open a new terminal:

cd client
npm install
npm run dev

Vite dev server usually runs at http://localhost:5173 and proxies API requests to backend port 5000.

API summary

• GET /health - service health and index stats
• POST /api/retrieve - retrieve answer for query
• POST /api/ingest - reload corpus files and rebuild in-memory index

Sample retrieve request:

{
  "query": "difference between culpable homicide and murder",
  "topK": 3
}

Corpus data

Backend loads corpus from:

• backend-go/data/ipc
• backend-go/data/judgments

Supported file types: .txt, .md, .json.

Build frontend

cd client
npm run build