public class Startup
{
    //...
    
    public void ConfigureServices(IServiceCollection services)
    {
        //configuration
        services.AddEasyCaching(option=> 
        {
            //use memory cache that named default
            option.UseInMemory("default");

            //use redis cache that named redis1
            option.UseRedis(config => 
            {
                config.DBConfig.Endpoints.Add(new ServerEndPoint("127.0.0.1", 6379));
            }, "redis1")
            .WithMessagePack()//with messagepack serialization
            ;            
        });    
    }    
}

[Route("api/[controller]")]
public class ValuesController : Controller
{
    // //when using single provider
    // private readonly IEasyCachingProvider _provider;
    //when using multiple provider
    private readonly IEasyCachingProviderFactory _factory;

    public ValuesController(
        //IEasyCachingProvider provider, 
        IEasyCachingProviderFactory factory
        )
    {
        //this._provider = provider;
        this._factory = factory;
    }

    [HttpGet]
    public string Handle()
    {
        //var provider = _provider;
        //get the provider from factory with its name
        var provider = _factory.GetCachingProvider("redis1");    

        //Set
        provider.Set("demo", "123", TimeSpan.FromMinutes(1));
            
        //Set Async
        await provider.SetAsync("demo", "123", TimeSpan.FromMinutes(1));                  
    }
}