바이브코더를 위한 프로덕션 생존 가이드

import logging
import time
from functools import wraps

# 기본 로깅 설정
logging.basicConfig(
    level=logging.INFO,
    format='%(asctime)s | %(levelname)s | %(message)s'
)
logger = logging.getLogger(__name__)

def log_request(func):
    """API 요청 로깅 데코레이터"""
    @wraps(func)
    async def wrapper(*args, **kwargs):
        start_time = time.time()
        request_id = generate_request_id()

        try:
            result = await func(*args, **kwargs)
            elapsed = time.time() - start_time

            logger.info(f"[{request_id}] {func.__name__} | "
                       f"status=200 | duration={elapsed:.3f}s")
            return result

        except Exception as e:
            elapsed = time.time() - start_time
            logger.error(f"[{request_id}] {func.__name__} | "
                        f"status=500 | duration={elapsed:.3f}s | "
                        f"error={type(e).__name__}: {str(e)}")
            raise

    return wrapper

# 사용 예시
@log_request
async def call_llm_api(prompt: str):
    response = await openai_client.chat.completions.create(
        model="gpt-4",
        messages=[{"role": "user", "content": prompt}]
    )
    return response.choices[0].message.content