public async Task <List <T> > GetAllAsync(List <string> keys)
{
var notInCacheKeys = new List <string>();
var result = new List <T>();
foreach (var key in keys)
{
if (_cache.TryGetValue(key, out var item))
{
result.Add(item);
}
else
{
notInCacheKeys.Add(key);
}
}
if (notInCacheKeys.Count > 0)
{
var resultFromDb = await _stateStoreImplementation.GetAllAsync(notInCacheKeys);
if (resultFromDb != null)
{
result.AddRange(resultFromDb);
}
}
return(result);
}