More Advanced Caching Strategies

In this lesson, the first two strategies we analyze are variations of the ones seen in the previous lesson but allow some more flexibility.

Cache falling back to network

The goal is to optimize response time.

If a resource is available in the cache, this version is delivered. Otherwise, a network request is triggered to fetch and then cache it.

This strategy is adapted for resources that do not often change, like the user profile images. In these cases, we want to provide the user with the fastest response without worrying about potentially delivering obsolete data.