If an API caches user profiles, what method ensures the cache is updated immediately when a user changes their profile, rather than waiting for a timer?

The method to ensure an API cache is updated immediately when a user changes their profile, rather than waiting for a timer, is proactive cache invalidation triggered directly by the write operation that updates the user's profile. An API, or Application Programming Interface, is a set of rules and protocols for building and interacting with software applications. Here is the process: When a user initiates a change to their profile, the API first processes this request by updating the authoritative data source, which is the primary and most reliable storage location for the data, typically a database. This ensures the fundamental data is always current. A cache is a high-speed data storage laye....