internal static void AddPaginationHeaders(HateoasScanner filterConfiguration, ResultExecutingContext context, PaginationMetadata paginationMetadata)
{
string pagination = (filterConfiguration.SupportsCustomDataType &&
context.HttpContext.Request.Headers["Accept"].Equals(filterConfiguration.CustomDataType))
? JsonConvert.SerializeObject(paginationMetadata)
: JsonConvert.SerializeObject(paginationMetadata.ToPaginationInfo());
context.HttpContext.Response.Headers.Add("X-Pagination", pagination);
}
internal static EnvelopDto <TDto> CreateLinksForSingleResource <TDto>(TDto dto, HateoasScanner filterConfiguration, LinkGenerator linkGenerator, Type controllerType)
where TDto : IIdentityDto
{
var envelop = new EnvelopDto <TDto>(dto);
ControllerAction[] actionsFromController = filterConfiguration.ControllerInfoDictionary[controllerType]
.ControllerActions.Where(t => t.ResourceType.Equals(ResourceType.Single)).ToArray();
foreach (var action in actionsFromController)
{
if (action.MethodType.Equals("Get") || action.MethodType.Equals("Patch"))
{
envelop.Links.Add(new LinkDto(linkGenerator.GetPathByAction(action.ActionName, controllerType.Name.Replace("Controller", ""), new { dto.Id }),
action.MethodName, action.MethodType));
}
else
{
envelop.Links.Add(new LinkDto(linkGenerator.GetPathByAction(action.ActionName, controllerType.Name.Replace("Controller", "")),
action.MethodName, action.MethodType));
}
}
return(envelop);
}
internal static EnvelopCollection <TDto> CreateLinksForCollectionResource <TDto>(IEnumerable <TDto> dtoCollection, HateoasScanner filterConfiguration, PaginationMetadata paginationMetadata, Type controllerType)
where TDto : IIdentityDto
{
var action = filterConfiguration.ControllerInfoDictionary[controllerType].ControllerActions.First(t => t.ResourceType == ResourceType.Collection);
var envelop = new EnvelopCollection <TDto>(dtoCollection);
envelop.Links.Add(new LinkDto(paginationMetadata.NextPageLink, $"{action.MethodName}-next", action.MethodType));
envelop.Links.Add(new LinkDto(paginationMetadata.PreviousPageLink, $"{action.MethodName}-previous", action.MethodType));
envelop.Links.Add(new LinkDto(paginationMetadata.SelfPageLink, $"{action.MethodName}", action.MethodType));
return(envelop);
}
public PaginationHelperService(LinkGenerator linkGenerator, HateoasScanner filterConfiguration)
{
this.linkGenerator = linkGenerator;
this.filterConfiguration = filterConfiguration;
}