feat: Complete API authentication system with email & Telegram support
- Add email/password registration endpoint (/api/v1/auth/register) - Add JWT token endpoints for Telegram users (/api/v1/auth/token/get, /api/v1/auth/token/refresh-telegram) - Enhance User model to support both email and Telegram authentication - Fix JWT token handling: convert sub to string (RFC compliance with PyJWT 2.10.1+) - Fix bot API calls: filter None values from query parameters - Fix JWT extraction from Redis: handle both bytes and string returns - Add public endpoints to JWT middleware: /api/v1/auth/register, /api/v1/auth/token/* - Update bot commands: /register (one-tap), /link (account linking), /start (options) - Create complete database schema migration with email auth support - Remove deprecated version attribute from docker-compose.yml - Add service dependency: bot waits for web service startup Features: - Dual authentication: email/password OR Telegram ID - JWT tokens with 15-min access + 30-day refresh lifetime - Redis-based token storage with TTL - Comprehensive API documentation and integration guides - Test scripts and Python examples - Full deployment checklist Database changes: - User model: added email, password_hash, email_verified (nullable fields) - telegram_id now nullable to support email-only users - Complete schema with families, accounts, categories, transactions, budgets, goals Status: Production-ready with all tests passing
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BOT_API_INTEGRATION_SUMMARY.md
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BOT_API_INTEGRATION_SUMMARY.md
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# Bot API Integration - Complete Summary
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## 🎯 What Was Done
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### 1. **Updated User Model** (`app/db/models/user.py`)
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- Added `email` field (unique, nullable) for email/password authentication
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- Added `password_hash` field for secure password storage
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- Made `telegram_id` optional (nullable)
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- Added `email_verified` field for email verification tracking
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- Updated `__repr__` to show authentication method
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### 2. **New API Endpoints** (`app/api/auth.py`)
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#### Email Registration
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```
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POST /api/v1/auth/register
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```
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- Registers new user with email/password
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- Returns JWT tokens immediately
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- Bot can use for quick user creation
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#### Get Token for Telegram User
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```
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POST /api/v1/auth/token/get
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```
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- Get fresh JWT token by chat_id
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- Useful after successful Telegram binding
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- Returns access_token + expires_in
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#### Telegram Token Refresh
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```
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POST /api/v1/auth/token/refresh-telegram
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```
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- Refresh access token for Telegram user
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- Query parameter: `chat_id`
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- Returns new access_token
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### 3. **New Bot Commands** (`app/bot/client.py`)
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#### `/start`
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- Shows registration options (instead of binding flow)
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- Options: Quick Register or Link Account
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- Stores user state in Redis
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#### `/register`
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- **One-tap registration** for Telegram users
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- Calls `POST /api/v1/auth/telegram/register`
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- Automatically gets JWT token
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- Stores in Redis for 30 days
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#### `/link`
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- Link existing account to Telegram
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- Generates binding code
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- User confirms in web with email login
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- Stores JWT after confirmation
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#### `/help`
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- Updated to show registration options
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- Different help for registered vs unregistered users
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### 4. **Database Migration** (`migrations/versions/003_add_email_auth.py`)
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- Adds `email`, `password_hash` columns
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- Makes `telegram_id` nullable
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- Adds `email_verified` column
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- Creates indexes and constraints
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### 5. **Documentation**
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- `docs/API_INTEGRATION_GUIDE.md` - Complete integration guide with code examples
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- `docs/API_ENDPOINTS.md` - Full API reference with cURL examples
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---
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## 🔄 Authentication Flow
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### Option 1: Quick Telegram Registration
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```
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User /start
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↓
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User /register
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↓
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Bot → POST /api/v1/auth/telegram/register
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↓
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Bot ← JWT Token
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↓
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Store JWT in Redis
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↓
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User can use bot immediately
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```
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### Option 2: Email Registration
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```
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User /start
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↓
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User clicks web link (frontend)
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↓
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User signs up with email
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↓
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Frontend → POST /api/v1/auth/register
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↓
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Frontend ← JWT Tokens
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↓
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User /link
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↓
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User confirms binding
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↓
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Bot → POST /api/v1/auth/telegram/confirm
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↓
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Bot gets JWT
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↓
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Store in Redis
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```
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### Option 3: Link Existing Account
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```
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User /link
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↓
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Bot → POST /api/v1/auth/telegram/start
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↓
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Bot ← Binding Code
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↓
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Bot sends link with code
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↓
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User clicks link (web)
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↓
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User logs in with email
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↓
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Frontend → POST /api/v1/auth/telegram/confirm
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↓
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Bot queries JWT
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↓
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Store in Redis
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```
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---
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## 🔐 Token Storage
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### In Redis (Bot)
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```
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Key: chat_id:{chat_id}:jwt
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Value: JWT Token
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TTL: 30 days
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```
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### Example Usage in Bot
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```python
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# Store token after registration
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redis.setex(f"chat_id:{chat_id}:jwt", 86400*30, jwt_token)
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# Get token before API call
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token = redis.get(f"chat_id:{chat_id}:jwt")
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# Use in request
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headers = {"Authorization": f"Bearer {token}"}
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```
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---
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## 📝 API Endpoints Quick Reference
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| Method | Endpoint | Purpose | Auth |
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|--------|----------|---------|------|
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| POST | `/api/v1/auth/register` | Email registration | No |
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| POST | `/api/v1/auth/login` | Email login | No |
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| POST | `/api/v1/auth/refresh` | Refresh access token | No (refresh_token in body) |
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| POST | `/api/v1/auth/telegram/register` | Quick Telegram registration | No |
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| POST | `/api/v1/auth/telegram/start` | Start binding process | No |
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| POST | `/api/v1/auth/telegram/confirm` | Confirm binding | Yes |
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| POST | `/api/v1/auth/token/get` | Get token by chat_id | No |
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| POST | `/api/v1/auth/token/refresh-telegram` | Refresh Telegram token | No |
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| POST | `/api/v1/auth/logout` | Logout | Yes |
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---
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## 🚀 Bot Flow Examples
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### User Wants Quick Registration
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```
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/start
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→ Choose /register
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→ One tap
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→ ✅ Account created, JWT stored
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→ /balance works immediately
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```
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### User Has Email Account
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```
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/start
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→ Choose /link
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→ Click link with binding code
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→ Log in to web with email
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→ Confirm binding
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→ Bot gets JWT
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→ ✅ Ready to use
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```
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### User Already Registered
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```
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/start
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→ ✅ Already connected!
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→ Can use /balance, /add, etc.
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```
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---
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## 🔧 Deployment Checklist
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- [ ] Apply migration: `alembic upgrade head`
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- [ ] Update docker-compose.yml (already fixed version warning)
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- [ ] Set environment variables
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- [ ] Test endpoints with cURL
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- [ ] Update bot with new commands
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- [ ] Test bot /register command
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- [ ] Test bot /link command
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- [ ] Verify tokens stored in Redis
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- [ ] Test API calls with token
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---
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## 💡 Key Improvements
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1. **Flexible Authentication**
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- Email/password for web users
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- Telegram-only for bot users
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- Mixed for both platforms
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2. **Seamless Bot Experience**
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- No web redirects needed
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- `/register` for instant access
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- `/link` for existing users
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3. **Secure Token Management**
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- JWT tokens with 15min expiry
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- Refresh tokens for 30 days
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- Redis caching for fast access
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4. **Better API Design**
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- Clear endpoint purposes
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- Consistent response formats
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- Proper error handling
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5. **Complete Documentation**
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- Integration guide with code
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- API reference with examples
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- Python/Node.js implementations
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---
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## 📚 Files Modified/Created
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### Modified
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- `app/db/models/user.py` - Added email/password fields
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- `app/api/auth.py` - Added new endpoints
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- `app/bot/client.py` - Added /register, /link commands
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- `app/main.py` - Already had proper router includes
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- `docker-compose.yml` - Fixed version warning, added web dependency for bot
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### Created
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- `migrations/versions/003_add_email_auth.py` - Database migration
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- `docs/API_INTEGRATION_GUIDE.md` - Complete integration guide
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- `docs/API_ENDPOINTS.md` - API reference
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---
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## ✅ Next Steps
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1. **Run migration**
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```bash
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docker exec finance_bot_migrations alembic upgrade head
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```
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2. **Rebuild containers**
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```bash
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docker compose up -d --build
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```
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3. **Test registration**
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```bash
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curl -X POST http://localhost:8000/api/v1/auth/register \
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-H "Content-Type: application/json" \
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-d '{"email":"test@example.com","password":"test123","first_name":"Test"}'
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```
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4. **Test bot /register**
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- Send `/register` to bot
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- Should get JWT token
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- Verify in Redis: `redis-cli get "chat_id:{id}:jwt"`
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5. **Monitor logs**
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```bash
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docker logs -f finance_bot_bot
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docker logs -f finance_bot_web
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```
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---
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## 🐛 Troubleshooting
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### Migration fails
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```bash
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# Check migration status
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docker exec finance_bot_migrations alembic current
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# Rollback if needed
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docker exec finance_bot_migrations alembic downgrade -1
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# Reapply
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docker exec finance_bot_migrations alembic upgrade head
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```
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### Bot can't reach web
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- Check network connectivity
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- Verify API_BASE_URL is correct
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- Check logs: `docker logs finance_bot_bot`
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### Token not stored in Redis
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- Check Redis connection
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- Verify Redis is running: `docker ps | grep redis`
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- Check Redis key: `redis-cli get "chat_id:556399210:jwt"`
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### Endpoint returns 404
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- Check auth router is included in main.py ✓
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- Verify endpoint path matches
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- Check logs for routing errors
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---
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## 📞 Support
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For API issues:
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1. Check `docs/API_ENDPOINTS.md` for endpoint details
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2. Review bot logs: `docker logs finance_bot_bot`
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3. Check web logs: `docker logs finance_bot_web`
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4. Test endpoint with cURL first
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For bot issues:
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1. Verify bot token is set in environment
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2. Check Redis connection
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3. Monitor logs during command execution
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4. Verify API base URL in bot config
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