Gateway

A minimal ChatGPT-style chatbot gateway with rule-based intent routing.

Stack

• Node.js (>=18) + Express
• better-sqlite3 for persistence
• Vanilla JS frontend (no build step)

Run

npm install
npm start
# Server: http://localhost:3003

Set PORT to override.

Features

• Sessions and messages persisted in SQLite (data/gateway.db).
• Rule-based intent classifier.
• Built-in handlers:
  • English dictionary (dictionaryapi.dev): hello 뜻, define serendipity, /en ephemeral
  • Korean dictionary (ko.wiktionary + ko.wikipedia fallback): 사과 뜻, 행복의 의미, /ko 인공지능
  • Fallback message for unsupported queries.

API

• GET /api/sessions
• POST /api/sessions
• GET /api/sessions/:id/messages
• DELETE /api/sessions/:id
• POST /api/chat body { sessionId?, message }