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SQLBot Web Interface - IMPLEMENTATION COMPLETE ✅

Status: Ready for Testing

The SQLBot web interface has been successfully implemented with all core features. The backend and frontend are built and ready to run.

What's Been Built

✅ Backend (Flask + SSE)

  • Flask Application (sqlbot/webapp.py)

    • REST API for session management
    • SSE endpoint for real-time updates
    • Query execution with background threading
    • Auto-save after each query

  • Session Service (sqlbot/session_service.py)

    • Wraps existing repl.py logic (no code duplication!)
    • Broadcasts events to SSE clients
    • Manages conversation history
    • Handles SQL, natural language, and slash commands

  • State & Preferences

    • state_manager.py - Tracks current session
    • preferences.py - User preferences (theme)

✅ Frontend (React + TypeScript)

  • Core Infrastructure

    • TypeScript types (lib/types.ts)
    • API client (lib/api.ts)
    • SSE hook (hooks/useSSE.ts)
    • Zustand store (store/sessionStore.ts)

  • UI Components

    • Session Grid - List of recent sessions, create new
    • Session View - Split-panel layout:
      • Left: Chat interface with message history
      • Right: Query list with selectable items
    • Query Input - Multi-line textarea with Enter to send
    • Real-time Updates - Messages and queries appear instantly

  • Styling

    • Tailwind CSS with dark mode support
    • Clean, modern UI with proper spacing
    • Responsive layout

How to Run

1. Start Backend (Terminal 1)

cd /home/ryan/projects/SQLBot
python -m sqlbot.webapp

# Or
python -c 'from sqlbot.webapp import run_webapp; run_webapp()'

Server starts on: http://localhost:5000

2. Access Web Interface

Open your browser to: http://localhost:5000

You'll see:

  • Session grid (if no sessions exist, create one)
  • Click "New Session" to start
  • Enter queries in the chat interface
  • See results in real-time via SSE

Features

Session Management

  • ✅ Create new sessions (auto-named with timestamp)
  • ✅ Load existing sessions
  • ✅ Delete sessions
  • ✅ Sessions persist to ~/.sqlbot_sessions/
  • ✅ Auto-save after each query

Query Execution

  • ✅ SQL queries (end with ;)
  • ✅ Natural language queries
  • ✅ Slash commands (e.g., /help)
  • ✅ Real-time execution via background threads
  • ✅ Safeguard mode (prevents dangerous SQL)
  • ✅ Preview mode support

Real-Time Updates (SSE)

  • ✅ Connected to /events endpoint
  • ✅ Message events (user/assistant/system)
  • ✅ Query complete events
  • ✅ Thinking indicators
  • ✅ Tool execution events
  • ✅ Error handling

UI/UX

  • ✅ Split-panel layout (chat left, queries right)
  • ✅ Message bubbles (user vs assistant styling)
  • ✅ Query history list
  • ✅ Disabled input while thinking
  • ✅ Enter to send, Shift+Enter for new line
  • ✅ Dark mode support (auto-detects system preference)

Architecture

User Browser
    ↓
http://localhost:5000 (Flask)
    ↓
React App (index.html → index.js)
    ↓
SSE Connection (/events) ← Real-time updates
    ↓
API Calls (/api/*)
    ↓
SessionService
    ↓
Existing REPL Logic (repl.py)
    ↓
SQL Execution / LLM Queries
    ↓
Results → SSE Events → Browser Updates

File Structure

SQLBot/
├── sqlbot/
│   ├── webapp.py              ✅ Flask app
│   ├── session_service.py     ✅ Session management
│   ├── state_manager.py       ✅ App state
│   ├── preferences.py         ✅ User preferences
│   ├── templates/
│   │   └── index.html         ✅ Main HTML
│   └── static/                ✅ Built React app
│       ├── index.js           (202 KB)
│       └── assets/            (CSS)
├── webapp/                    ✅ React source
│   ├── src/
│   │   ├── App.tsx            ✅ Main component
│   │   ├── hooks/useSSE.ts    ✅ SSE connection
│   │   ├── store/sessionStore.ts  ✅ State management
│   │   ├── lib/
│   │   │   ├── types.ts       ✅ TypeScript types
│   │   │   ├── api.ts         ✅ API client
│   │   │   └── utils.ts       ✅ Utilities
│   │   └── index.css          ✅ Tailwind styles
│   └── vite.config.ts         ✅ Build config
├── test_webapp.py             ✅ Backend tests
└── WEBAPP_STATUS.md           ✅ Documentation

Testing

Backend Tests

python test_webapp.py

All tests pass:

  • ✅ Module imports
  • ✅ StateManager
  • ✅ PreferencesManager
  • ✅ SessionService
  • ✅ Flask app
  • ✅ All API endpoints

Frontend Build

cd webapp
npm run build

Output:

  • sqlbot/static/index.js - 202 KB
  • sqlbot/static/assets/*.css - 11.77 KB
  • ✅ Build successful

Next Steps

Immediate

  1. Test end-to-end - Run Flask server and test in browser
  2. Try queries - Test SQL, natural language, slash commands
  3. Check SSE - Verify real-time updates work

Phase 5 (Optional Enhancements)

  1. CLI Integration - Add sqlbot --web flag
  2. Theme Toggle - Add manual theme switcher in UI
  3. Menu Bar - Add app menu with File/Edit options
  4. Query Details - Add tabs for Query/Response/Execution
  5. Copy/Paste - Test clipboard functionality

Known Limitations

  1. Node.js Version Warning - Vite prefers Node 20+, but works with 18.18.2
  2. Single User - Currently supports one active session at a time
  3. No Authentication - Localhost only (127.0.0.1)
  4. Basic Error Handling - Could be more robust

Success Criteria ✅

  • Backend Flask app functional
  • SSE endpoint streaming events
  • Session CRUD operations working
  • Query execution via API
  • React frontend built and deployed
  • Split-panel UI layout
  • Chat interface with messages
  • Query history list
  • Real-time updates via SSE
  • Dark mode support
  • Auto-save sessions
  • End-to-end testing (ready to test!)
  • CLI integration (optional)

Summary

Phase 1-4 Complete! The SQLBot web interface is fully implemented with:

  • Modern React + TypeScript frontend
  • Flask backend with SSE for real-time updates
  • Full integration with existing REPL logic
  • Session management and persistence
  • Clean, usable UI

Ready to run and test! 🚀

To start:

python -m sqlbot.webapp
# Open http://localhost:5000 in browser