de983a73d2
- Created app/database.py with SQLAlchemy engine, session management, and connection utilities - Added comprehensive database models in app/models.py for User, Client, Phone, Case, Transaction, Document, and Payment - Implemented FastAPI application with database lifecycle management in app/main.py - Added health check endpoint to verify database connectivity - Created README.md with database configuration documentation - Verified database connection works correctly with SQLite backend
86 lines
2.0 KiB
Python
86 lines
2.0 KiB
Python
"""
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FastAPI application entry point for Delphi Database.
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This module initializes the FastAPI application, sets up database connections,
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and provides the main application instance.
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"""
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import logging
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from contextlib import asynccontextmanager
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from fastapi import FastAPI, Depends
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from sqlalchemy.orm import Session
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from .database import create_tables, get_db, get_database_url
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from .models import User
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# Configure logging
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logging.basicConfig(level=logging.INFO)
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logger = logging.getLogger(__name__)
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@asynccontextmanager
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async def lifespan(app: FastAPI):
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"""
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Lifespan context manager for FastAPI application.
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Handles startup and shutdown events:
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- Creates database tables on startup
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- Logs database connection info
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"""
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# Startup
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logger.info("Starting Delphi Database application...")
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# Create database tables
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create_tables()
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logger.info("Database tables created/verified")
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# Log database connection info
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db_url = get_database_url()
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logger.info(f"Database connected: {db_url}")
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yield
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# Shutdown
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logger.info("Shutting down Delphi Database application...")
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# Create FastAPI application with lifespan management
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app = FastAPI(
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title="Delphi Database",
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description="Legal case management database application",
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version="1.0.0",
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lifespan=lifespan
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)
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@app.get("/")
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async def root():
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"""
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Root endpoint - health check.
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"""
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return {"message": "Delphi Database API is running"}
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@app.get("/health")
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async def health_check(db: Session = Depends(get_db)):
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"""
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Health check endpoint that verifies database connectivity.
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"""
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try:
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# Test database connection by querying user count
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user_count = db.query(User).count()
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return {
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"status": "healthy",
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"database": "connected",
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"users": user_count
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}
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except Exception as e:
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logger.error(f"Health check failed: {e}")
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return {
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"status": "unhealthy",
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"database": "error",
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"error": str(e)
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}
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