@app.get("/") async def root(): return "message": "Hello Microservices"
from fastapi import FastAPI app = FastAPI(title="My First Microservice") building python microservices with fastapi pdf
FROM python:3.11-slim WORKDIR /app COPY requirements.txt . RUN pip install --no-cache-dir -r requirements.txt COPY ./app /app/app CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "8000"] for multi‑service stack: AsyncSession from sqlalchemy.orm import sessionmaker
from sqlalchemy.ext.asyncio import create_async_engine, AsyncSession from sqlalchemy.orm import sessionmaker, declarative_base engine = create_async_engine("postgresql+asyncpg://user:pass@localhost/db") AsyncSessionLocal = sessionmaker(engine, class_=AsyncSession) building python microservices with fastapi pdf