EasyCache.NET

EasyCache.NET is a .NET library that turns it simple to cache data in your apps with an easy usability and less lines of code. By default, it implements 2 simple types of storage:

• MemoryCacheStorage: stores the cache in memory and it's acessible only in your application scope and lifecycle.

• FileCacheStorage: stores the cache serialized in files, so you can actually share it between applications.

Note that I do not recommend you to use these implementations in your production code since they are not the best storages for effective cache and, beyond that, are not optimized. Instead, I recommend you to do your own implementation of the ICacheStorage using an appropriate storage of your choice or have a look in my Redis implementation (comming soon).

Nuget Package: EasyCache.NET

Now, let me show you the code...

In your startup code, configure the Caching and inject in your DI resolver, container or static field:

public void ConfigureServices(IServiceCollection services)
{
    var storage = new MemoryCacheStorage();
    var caching = new Caching(storage);

    services.AddSingleton(caching);
    
    ...
}

Then just get your Caching instance and use it like this:

private readonly Database _db;
private readonly Caching _cache;

public ValuesController(Database db, Caching cache)
{
    _db = db;
    _cache = cache;
}

public ActionResult Get()
{
    var data = _cache.GetValue(
        "key", // The unique key to search or add in the storage in case it don't exists
        () => _db.GetData(), // The function tha returns the source data in case the key isn't found in cache
        TimeSpan.FromSeconds(30) // The expiration of the cache in case it's added by this invocation
      );

    return Ok(data);
}

You can also see a sample code here.