What is the correct way to remove objects from Akavache cache?

[lywyn]

I am using Akavache in an Android app to store some product data and added a "reset catalog" feature to clear down products from the cache before downloading them again.

I add the products (class Product) to the catalog from an API request. DsCatalogProduct is a constant prefix for the key used to store each product, e.g. Product lookup code 123456 will have a key DsCatalogProduct_123456.

 await _cacheManager.InsertObjects(catalogSource.Products.ToDictionary(v => DsCatalogProduct + v.LookupCode, v => v));

After some testing, I noticed products were not being cleared from the cache so added a bit of code. Here is the code I have to clear down the products.

  var stage1 = (await _cacheManager.GetAllKeys()).Count(x => x.StartsWith(DsCatalogProduct));
  if (forceOverride)
  {
      await _cacheManager.InvalidateAllObjects<Product>();
      await _cacheManager.Flush();
      await _cacheManager.Vacuum();
  }
  var stage2 = (await _cacheManager.GetAllKeys()).Count(x => x.StartsWith(DsCatalogProduct));
  
  Console.WriteLine("****** products stage1: {0}", stage1);
  Console.WriteLine("****** products stage2: {0}", stage2);

I start with 3023 keys found and after invalidating, flush and vacuum I still have 3023 keys. Is there a better way to clear the product objects from the cache?

Using akavache 9.0.1 and akavache.splite3 9.0.1

[lywyn]

Whilst trying an alternative way to invalidate all the Product objects I noticed this code returns no objects.

 var products = await _cacheManager.GetAllObjects<Product>();

The only way I can get the Product objects is by looking for the prefix I use for the key in the cache.

  var products = (await _cacheManager.GetAllKeys()).Where(key => key.StartsWith(DsCatalogProduct));
  products.ForEach(async x => await _cacheManager.Invalidate(x));