public async Task <IActionResult> GetDrugs(string name, string order, int?pageNumber, int?pageSize)
{
if (!ModelState.IsValid)
{
return(BadRequest(ModelState));
}
PaginatedList <Drug> drugs = await _drugRepository.ListAsync(name, order, pageNumber, pageSize);
HttpContext.Response.Headers.Add("page", drugs.PageIndex.ToString());
HttpContext.Response.Headers.Add("totalRecords", drugs.TotalRecords.ToString());
return(Ok(drugs));
}