public static T?GetOrSetJsonObject <T>(this IDistributedCache cache, string key, Func <T?> valueFactory,
DistributedCacheEntryOptions entryOptions, JsonSerializerOptions?serializerOptions = null) where T : class
{
var cached = cache.GetJsonObject <T>(key, serializerOptions);
if (cached != null)
{
return(cached);
}
var value = valueFactory();
if (value != null)
{
cache.SetJsonObject(key, value, entryOptions, serializerOptions);
}
return(value);
}