private Task <List <Entities.PostTag> > AddPostTags(string postSlug, List <string> tagList) { return(Task.Run(async() => { var tagSlugs = await tagRepository.CreateTagsAsync(tagList); List <Entities.PostTag> newPostTags = new(); foreach (var tagSlug in tagSlugs) { newPostTags.Add(new Entities.PostTag { PostSlug = postSlug, TagSlug = tagSlug }); } return newPostTags; })); }