public IActionResult GetAuthors([FromQuery] AuthorsResourceParameters parameters,
[FromHeader(Name = Headers.Accept)] string mediaType)
{
if (!_propertyMappingService.ValidMappingExistsFor <Author, Entities.Author>(parameters.OrderBy))
{
return(BadRequest());
}
if (!_typeHelperService.TypeHasProperties <Author>(parameters.Fields))
{
return(BadRequest());
}
var authors = _repo.GetAuthors(parameters);
var currentMediaType = new MediaType(mediaType);
var includeLinks = currentMediaType.IsSubsetOf(VendorMediaType.HateoasLinksMediaType);
var prev = authors.HasPrevious ? CreateAuthorsResourceUri(parameters, ResourceUriType.Previous) : null;
var next = authors.HasNext ? CreateAuthorsResourceUri(parameters, ResourceUriType.Next) : null;
var result = Mapper.Map <IEnumerable <Author> >(authors);
var pagination = new Pagination()
{
IncludeLinks = !includeLinks,
TotalCount = authors.TotalCount,
PageSize = authors.PageSize,
CurrentPage = authors.CurrentPage,
TotalPages = authors.TotalPages,
NextPageLink = next,
PreviousPageLink = prev,
};
Pagination.AddHeader(Response, pagination);
if (includeLinks)
{
var links = CreateLinks(parameters, authors.HasNext, authors.HasPrevious);
var shapedAuthors = result.ShapeData(parameters.Fields);
var shapedAuthorsWithLinks = shapedAuthors.Select(a =>
{
var authorDictionary = a as IDictionary <string, object>;
var authorLinks = CreateLinks((Guid)authorDictionary[nameof(Author.Id)], parameters.Fields);
authorDictionary.Add("links", authorLinks);
return(authorDictionary);
}
);
var linkCollection = new { value = shapedAuthorsWithLinks, links };
return(Ok(linkCollection));
}
return(Ok(result));
}