A dictionary in C# is one simple way to add caching functionality but... it doesn't handle some situations we probably really care about in a real application.

Thread safety? Not so fast. But there is a ConcurrentDictionary we can use!

Eviction strategy for cached items in the collection? Not out of the box.

What about entry expiration? Nope -- not without rolling your own.

But that's exactly why I have relied on BitFaster Caching for these use cases. Simple. Easy to use. Gets the job done.

Learn more about it and more in the caching for beginner's video:
https://www.youtube.com/watch?v=yM5mxZdqeGc

We Are .NET

A brief walkthrough of BitFaster caching in C#, demonstrating how to configure cache capacity and time-based expiration (TTL). The demo shows an API where cached entries expire after 3 seconds, and entries are evicted when the cache exceeds its capacity limit, illustrating both TTL expiry and LRU-style eviction behavior.

A Quick Look At BitFaster Caching in C#