4 rules available
Use FastAPI's dependency injection system for authentication, database sessions, and shared business logic.
from fastapi import Depends, HTTPException, status
from fastapi.security import OAuth2PasswordBearer
from sqlalchemy.orm import Session
from typing im...Implement async database operations with SQLAlchemy 2.0 for high-concurrency FastAPI applications.
from sqlalchemy.ext.asyncio import create_async_engine, AsyncSession, async_sessionmaker
from sqlalchemy.orm import declarative_base
from sqlalchemy i...Build real-time features with FastAPI WebSockets and connection manager patterns.
from fastapi import FastAPI, WebSocket, WebSocketDisconnect, HTTPException
from fastapi.middleware.cors import CORSMiddleware
from typing import Dict,...Handle long-running operations with BackgroundTasks and Celery for distributed task queues.
from fastapi import FastAPI, BackgroundTasks, Depends, HTTPException
from pydantic import BaseModel, EmailStr
from sqlalchemy.orm import Session
from ...