shorter example (code in alt text)
![shorter example illustrating the issue. below the code is a terminal window showing the hybrid cache endpoint returns "null" but the memory cache endpoint returns "test"
using Microsoft.AspNetCore.Http.HttpResults;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.Caching.Hybrid;
using Microsoft.Extensions.Caching.Memory;
var builder = WebApplication.CreateBuilder(args);
#pragma warning disable EXTEXP0018
builder.Services.AddHybridCache();
#pragma warning restore EXTEXP0018
builder.Services.AddMemoryCache();
var app = builder.Build();
app.MapGet("/test-hybrid", TestHybridAsync);
app.MapGet("/test-memory-cache", TestMemoryCacheAsync);
async Task<Results<Ok<string>, NotFound>> TestHybridAsync([FromServices] HybridCache cache)
{
var data = await cache.GetOrCreateAsync("key-hybrid", async _ => await GetDataAsync());
return TypedResults.Ok(data.Item1 ?? "null");
}
async Task<Results<Ok<string>, NotFound>> TestMemoryCacheAsync([FromServices] IMemoryCache cache)
{
var data = await cache.GetOrCreateAsync("key-memory", async _ => await GetDataAsync());
return TypedResults.Ok(data.Item1 ?? "null");
}
app.Run();
return;
Task<(string, string)> GetDataAsync()
{
return Task.FromResult<(string, string)>(("test", "data"));
}](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:wnin366ozidm26ndp2p3md6x/bafkreiennokz3n5zh5cdm2tnc7prbvzec455jr3f5akjnbvfwqzrkzlw44@jpeg)
November 22, 2024 at 6:24 PM
shorter example (code in alt text)
@davidfowl.com any idea why using GetOrCreateAsync with a nullable tuple works with IMemoryCache but does not with HybridCache?
![a code sample testing the same operation with IMemoryCache and HybridCache. terminal result at the bottom showing that the memory cache endpoint returns a string while the hybrid cache endpoint returns null
using Microsoft.AspNetCore.Http.HttpResults;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.Caching.Hybrid;
using Microsoft.Extensions.Caching.Memory;
var builder = WebApplication.CreateBuilder(args);
#pragma warning disable EXTEXP0018
builder.Services.AddHybridCache();
#pragma warning restore EXTEXP0018
builder.Services.AddMemoryCache();
var app = builder.Build();
app.MapGet("/test-hybrid", TestHybridAsync);
app.MapGet("/test-memory-cache", TestMemoryCacheAsync);
async Task<Results<Ok<string>, NotFound>> TestHybridAsync([FromServices] HybridCache cache)
{
var data = await cache.GetOrCreateAsync("key-hybrid", async _ => await GetDataAsync());
if (data is not null)
{
return TypedResults.Ok(data.Value.Item1 ?? "null");
}
return TypedResults.NotFound();
}
async Task<Results<Ok<string>, NotFound>> TestMemoryCacheAsync([FromServices] IMemoryCache cache)
{
var data = await cache.GetOrCreateAsync("key-memory", async _ => await GetDataAsync());
if (data is not null)
{
return TypedResults.Ok(data.Value.Item1 ?? "null");
}
return TypedResults.NotFound();
}
app.Run();
return;
Task<(string, string)?> GetDataAsync()
{
return Task.FromResult<(string, string)?>(("test", "data"));
}](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:wnin366ozidm26ndp2p3md6x/bafkreihkby6z2ib7mzday3j5o6bxpfmbxopmiedf2knrqecaq6p2cazfhy@jpeg)
November 22, 2024 at 6:15 PM
@davidfowl.com any idea why using GetOrCreateAsync with a nullable tuple works with IMemoryCache but does not with HybridCache?