public async Task <ActionResult <RecipeDTO> > GetRecipe(Guid id)
{
//var recipe = await _context.Recipe.FindAsync(id);
var recipes = await(recipeRepo.GetByExpressionAsync(r => r.Id == id));
Recipe recipe = recipes.First(); //collecties
var recipeCategories = await categoryRepo.GetByExpressionAsync(cat => cat.Id == recipe.CategoryId);
recipe.Category = recipeCategories.First(); //nodig in mapper (lazy loading)
if (recipe == null)
{
return(NotFound());
}
var recipeDTO = mapper.Map <RecipeDTO>(recipe);
return(Ok(recipeDTO));
}
public async Task <ActionResult <IEnumerable <CategoryDTO> > > GetCategories()
{
IEnumerable <Category> categoriesCached;
// if cache ? aanmaken of gebruiken
if (!memoryCache.TryGetValue(CacheKeys.CategoriesCacheKey, out categoriesCached))
{
categoriesCached = await genericRepo.GetAllAsync();
//relaties -> recipes
foreach (Category c in categoriesCached)
{
var recipes = await genericRecipeRepo.GetByExpressionAsync(r => r.CategoryId == c.Id);
c.Recipes = (ICollection <Recipe>)recipes;
}
//2. Set options
var cacheEntryOptions = new MemoryCacheEntryOptions()
.SetSize(10)
.SetSlidingExpiration(TimeSpan.FromMinutes(1));
//3. Save data in cache
memoryCache.Set(CacheKeys.CategoriesCacheKey, categoriesCached, cacheEntryOptions);
}
else
{
categoriesCached = (ICollection <Category>)memoryCache.Get(CacheKeys.CategoriesCacheKey);
}
//3. mappen naar DTO
var categoriesDTO = mapper.Map <IEnumerable <CategoryDTO> >(categoriesCached);
//4. Notificatie met geserialiseerde categoriesDTO naar een Hub sturen (registreren)
await hubContext.Clients.All.SendAsync("ServerMessage", new { message = $"{JsonSerializer.Serialize(categoriesDTO)}" });
//alternatief: methode in RepoHub oproepen
return(Ok(categoriesDTO));
}