How can I implement an in-memory cache in my application?

How can I implement an in-memory cache in my application?

You can use data structures like dictionaries or hash maps to store key-value pairs in memory. What programming language are you using?

I'm using Python. Any specific libraries you recommend?

For Python, you can use libraries like cachetools or diskcache. They provide easy-to-use caching mechanisms.

How do I set an expiration time for cached items?

You can set expiration by using the TTLCache from cachetools, which allows you to specify a time-to-live for each item.

Can you give me a code example?

Sure! Here's a simple example:

from cachetools import TTLCache

cache = TTLCache(maxsize=100, ttl=300)  # 300 seconds expiration
cache['key'] = 'value'