How to Cache Function Results with Redis in Python

import redis
import json
from functools import wraps

class RedisCache:
    def __init__(self, host='localhost', port=6379, db=0, ttl=60):
        self.client = redis.Redis(host=host, port=port, db=db, decode_responses=True)
        self.ttl = ttl

    def cached(self, key_prefix):
        def decorator(func):
            @wraps(func)
            def wrapper(*args, **kwargs):
                key = f"{key_prefix}:{args}:{kwargs}"
                cached_value = self.client.get(key)
                if cached_value is not None:
                    print(f"Cache HIT for {key}")
                    return json.loads(cached_value)
                print(f"Cache MISS for {key}")
                result = func(*args, **kwargs)
                self.client.setex(key, self.ttl, json.dumps(result))
                return result
            return wrapper
        return decorator


cache = RedisCache(ttl=10)

@cache.cached("user")
def get_user(user_id):
    return {"id": user_id, "name": "Alice", "age": 30}


if __name__ == "__main__":
    print(get_user(1))
    print(get_user(1))