Caching can greatly improve an application’s performance by reducing the trips to fetch data that changes infrequently. The consistency of cached values is critical at run-time. At development time, we can avoid some human errors by setting caches to be Immutable Collections, so that cached values are not able to be mutated accidentally in code.
This blog post will use the simplest cache IMemoryCache in .NET Core to demonstrate usages of Immutable Collections, which is also native in .NET framework. The sample code is in this GitHub repository.
