Cloud Design Patterns: Cache-Aside

• Load data on demand into a cache from a data store.
• This pattern can improve performance and also helps to maintain consistency between data held in the cache and the data in the underlying data store.

When to use

• A cache doesn't provide native read-through and write-through operations.
• Resource demand is unpredictable. This pattern enables applications to load data on demand. It makes no assumptions about which data an application will require in advance.

Reference

• Documentation: https://docs.microsoft.com/en-us/azure/architecture/patterns/cache-aside