public async Task <IActionResult> GetSamples([FromQuery] SampleParametersDto sampleParametersDto)
{
// add error handling
var query = new SampleListQuery(sampleParametersDto);
var queryResponse = await _mediator.Send(query);
var paginationMetadata = new
{
totalCount = queryResponse.TotalCount,
pageSize = queryResponse.PageSize,
currentPageSize = queryResponse.CurrentPageSize,
currentStartIndex = queryResponse.CurrentStartIndex,
currentEndIndex = queryResponse.CurrentEndIndex,
pageNumber = queryResponse.PageNumber,
totalPages = queryResponse.TotalPages,
hasPrevious = queryResponse.HasPrevious,
hasNext = queryResponse.HasNext
};
Response.Headers.Add("X-Pagination",
JsonSerializer.Serialize(paginationMetadata));
var response = new Response <IEnumerable <SampleDto> >(queryResponse);
return(Ok(response));
}
public async Task <PagedList <SampleDto> > Handle(SampleListQuery request, CancellationToken cancellationToken)
{
if (request.QueryParameters == null)
{
// log error
throw new ApiException("Invalid query parameters.");
}
// include marker -- to accomodate adding includes with craftsman commands, the next line must stay as `var result = await _db.Samples`. -- do not delete this comment
var collection = _db.Samples
as IQueryable <Sample>;
var sieveModel = new SieveModel
{
Sorts = request.QueryParameters.SortOrder ?? "SampleId",
Filters = request.QueryParameters.Filters
};
collection = _sieveProcessor.Apply(sieveModel, collection);
var dtoCollection = _db.Samples
.ProjectTo <SampleDto>(_mapper.ConfigurationProvider);
return(await PagedList <SampleDto> .CreateAsync(dtoCollection,
request.QueryParameters.PageNumber,
request.QueryParameters.PageSize));
}
public async Task <Page <SampleListItemView> > Handle(SampleListQuery query, CancellationToken cancellationToken)
{
var ownerId = new Guid("f8504337-b7e1-433a-8d0f-cbfedbe879bc");
var testData = new List <SampleListItemView>
{
new SampleListItemView
{
Id = Guid.NewGuid(),
OwnerId = ownerId,
Title = "Test list item title"
},
new SampleListItemView
{
Id = Guid.NewGuid(),
OwnerId = ownerId,
Title = "Test list item title 2"
},
new SampleListItemView
{
Id = Guid.NewGuid(),
OwnerId = ownerId,
Title = "Test list item title 3"
}
};
var items = testData
.Where(o => o.OwnerId == query.OwnerId)
.AsQueryable();
return(new Page <SampleListItemView>
{
Limit = query.Limit,
Offset = query.Offset,
Total = items.Count(),
Items = items
.Skip(query.Offset)
.Take(query.Limit)
});
}
