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Caching & Redis

Cache-aside, TTL, invalidation, hot keys, and in-memory lookup patterns at scale.

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Caching & Redis medium

How to Validate and Cache Data with Redis in Python

A beginner-friendly helper that validates email, phone, and age data and caches validated entries in Redis for 5 minutes.

redis caching validation
Python 
import redis
import json
from functools import wraps

class DataValidator:
    def __init__(self, host="localhost", port=6379, db=0):
        self.cache = redis.Redis(host=host, port=port, db=db)
        self.validators = {
            "email": lambda v: "@" in v and "." in v.split("@")[-1],
            "phone": lambd…
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