Description

The application code effectively maintains the cache. It attempts to read from cache; if miss, it reads from DB and writes to cache.

Where to use

• General caching strategy.
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• Read-heavy data.

Real World Example

App checks Redis for 'user:123'. If missing, fetches from MySQL, saves to Redis, and returns to user.

Code Example

class Cache-Aside:
    def __init__(self):
        pass

    def execute(self):
        print('Executing Cache-Aside')