Discuss revalidating strategies for data caching?
Cached data can be revalidated in two ways, with:
Time-based Revalidation: Revalidate data after a certain amount of time has passed and a new request is made. This is useful for data that changes infrequently and freshness is not as critical.
On-demand Revalidation: Revalidate data based on an event (e.g. form submission). On-demand revalidation can use a tag-based or path-based approach to revalidate groups of data at once. This is useful when you want to ensure the latest data is shown as soon as possible (e.g. when content from your headless CMS is updated).
Time based revalidation
Data can be revalidated on-demand by path (revalidatePath) or by cache tag (revalidateTag).