/// <summary>
/// Gets the posts asynchronous.
/// </summary>
/// <param name="tag">The tag.</param>
/// <param name="context">The context.</param>
/// <param name="dataLoader">The data loader.</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>List of related posts.</returns>
public async Task <IEnumerable <Post> > GetPostsAsync(Tag tag,
[ScopedService] ApiContext context,
PostByIdDataLoader dataLoader,
CancellationToken cancellationToken)
{
int[] postIds = await context.Tags.AsNoTracking()
.Where(t => t.Id == tag.Id)
.Include(t => t.Posts)
.SelectMany(t => t.Posts.Select(p => p.Id))
.ToArrayAsync(cancellationToken)
.ConfigureAwait(false);
return(await dataLoader.LoadAsync(postIds, cancellationToken)
.ConfigureAwait(false));
}
public Task <Post> GetPost(
int id,
PostByIdDataLoader dataLoader,
CancellationToken cancellationToken) =>
dataLoader.LoadAsync(id, cancellationToken);
/// <summary>
/// Gets the post asynchronous.
/// </summary>
/// <param name="id">The identifier.</param>
/// <param name="dataLoader">The data loader.</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>The post, with the given ID.</returns>
public async Task <Post?> GetPostByIdAsync([ID(nameof(Post))] int id,
PostByIdDataLoader dataLoader,
CancellationToken cancellationToken) => await dataLoader.LoadAsync(id, cancellationToken)
.ConfigureAwait(false);
public Task <Post> OnPostUpdatedAsync([EventMessage] int id,
PostByIdDataLoader dataLoader,
CancellationToken cancellationToken) => dataLoader.LoadAsync(id, cancellationToken);
