public async Task <ActionResult <ListViewModel <Line> > > Get([FromQuery] ListRequest request)
{
Expression <Func <Line, bool> > filter = (x) => true;
if (request.FilterString != null)
{
filter = (x) => x.Name.Contains(request.FilterString);
}
var response = await _service.GetAsync(request.PageIndex, request.PageSize, filter);
return(response);
}