ASP.NET CORE PRIVATE CACHE HOW TO
ASP.NET CORE PRIVATE CACHE CODE

Your controller or class where you inject it should look a bit like the following. To get going, in your startup.cs ConfigureServices method, add a call to AddDistributedMemor圜ache like so : public void ConfigureServices(IServiceCollection services) This may also be helpful if locally you just want to use your machines cache and not have Redis setup.

It’s just a single line of difference in your startup. But the big advantage to going down this road is that should to intend to switch to using Redis in the future, the interfaces between the RedisDistributedCache and the In Memory one are exactly the same.

It’s obviously not distributed if it’s sitting local to a machine. AddExpirationToken(new CancellationChangeToken(cts.Token))Ī “distributed” memory cache is probably a bit of an oxymoron.

ASP.NET CORE PRIVATE CACHE CODE

The code would look something similar to this : var cts = new CancellationTokenSource() CancellationTokens are notoriously difficult to debug and get going, but if you have the need it’s there! Again, a feature that probably won’t be used too often, but can be used to invalidate a set of cache all in one go. Usually there are very limited reasons why you would want to do this, but the option is there should you want it!Īlso supported is CancellationTokens. Now everytime a cache entry expires, you will be notified about it. RegisterPostEvictionCallback((key, value, reason, state) => ) To use it, it will look something like the following : _memor圜ache.Set(cacheKey, existingTime, This allows you to register an action to be called everytime something “expires”. That’s the basics, now a couple of nice things that this implementation of a memory cache has that won’t be available in the next implementation I will show youĪn interesting feature is the PostEvictionCallback delegate. Return 'Added to cache : ' + existingTime Return 'Fetched from cache : ' + existingTime.ToString() If (_memor圜ache.TryGetValue(cacheKey, out existingTime)) Public HomeController(IMemor圜ache memor圜ache) Private readonly IMemor圜ache _memor圜ache Both should be rather explanatory in the following code : public class HomeController : Controller The two main methods you will likely be interested in are “TryGetValue” and “Set”.

In your controller or class you wish to use the memory cache, add in a dependency into the constructor. In your ConfigureServices method you need to add a call to “AddMemor圜ache” like so : public void ConfigureServices(IServiceCollection services) It’s similar to what you may have used in standard ASP.net in terms of storing an object in memory by a key.įirst open up your startup.cs. The first option is to use what is simply known in. net Core currently offers two ways to implement a local in memory cache. But for tiny sites that have a single web instance, or for sites that really only need a local cache, InMemory caching is much easier to get setup with and obviously does away with wrangling a Redis server. In most large scale scenarios, Redis is going to be your goto.

ASP.NET CORE PRIVATE CACHE HOW TO

In a previous post, we talked about how to use a Redis Cache in.

Asp.net core private cache