Reference library

Caching & Redis

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

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Caching & Redis easy

Cache Asides in Python with a Read-Through Loader

Implements a cache-aside pattern with a read-through loader that fetches missing keys from a backing data store and caches them.

caching cache-aside read-through
Python 
class DataStore:
    """Mock database with a few records."""
    def __init__(self):
        self.data = {1: "Alice", 2: "Bob", 3: "Charlie"}

    def get(self, key):
        print(f"Loading key {key} from database")
        return self.data.get(key)


class CacheAsideLoader:
    """Cache-aside pattern with a read-thr…
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