How can I use MemoryCache in ASP.NET Core?

How can I use MemoryCache in ASP.NET Core?

You can use MemoryCache in ASP.NET Core by injecting IMemoryCache into your services. Would you like a code example?

Yes, please provide a code example.

Sure! First, add the MemoryCache service in your Startup.cs:

public void ConfigureServices(IServiceCollection services) {
    services.AddMemoryCache();
}

Then, inject IMemoryCache into your class:

public class MyService {
    private readonly IMemoryCache _cache;

    public MyService(IMemoryCache cache) {
        _cache = cache;
    }
}

You can now use _cache.Set(key, value) to store items and _cache.TryGetValue(key, out value) to retrieve them.

What are some common use cases for MemoryCache?

Common use cases include caching database query results, storing frequently accessed data, and reducing API call frequency.

Are there any limitations I should be aware of?

Yes, MemoryCache is limited by the available memory of the server and does not persist data across application restarts.