public async Task <IActionResult> GetBooks([FromQuery] GetBookCollectionHttpRequest?getBookCollectionHttpRequest)
{
QueryBookCommand queryBookCommand = new QueryBookCommand
{
PartialBookName = getBookCollectionHttpRequest?.PartialBookName,
PartialAuthorName = getBookCollectionHttpRequest?.PartialAuthorName,
Limit = getBookCollectionHttpRequest?.Limit ?? 20,
Offset = getBookCollectionHttpRequest?.Offset ?? 0
};
PaginatedCollection <BookResponse> paginatedCollection = await _executionContext.ExecuteAsync(queryBookCommand, CancellationToken.None);
return(StatusCode((int)HttpStatusCode.OK, paginatedCollection));
}
public async Task<PaginatedCollection<BookResponse>> Handle(QueryBookCommand request, CancellationToken cancellationToken)
{
IExpressionSpecification<Book> specification = new BookIsRemoved().Not();
if (!string.IsNullOrEmpty(request.PartialBookName))
{
specification = specification.And(new BookNameContains(request.PartialBookName));
}
if (!string.IsNullOrEmpty(request.PartialAuthorName))
{
specification = specification.And(new AuthorNameContains(request.PartialAuthorName));
}
IBookRepository bookRepository = _productDbContext.BookRepository;
PaginatedCollection<Book> paginatedCollection = await bookRepository.GetAsync(specification, request.Offset, request.Limit, cancellationToken);
PaginatedCollection<BookResponse> result = new PaginatedCollection<BookResponse>(paginatedCollection.TotalCount,
paginatedCollection.Data.Select(p => new BookResponse(p.Id, p.BookName, p.AuthorName)));
return result;
}
