creating a request object for web api

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C#

ASP.NET

MVC

API

I am trying to create a private method, which can pass both GET and POST request, so I can all both post and get from one controller. I manage to create private method but to be able to access the GET parameters in the POST method, I need to create a Request object, which I am little unclear, what logic would i need to implement.

Please advice. Thanks in advance.

[Authorize]
        [HttpPost]
      public HttpResponseMessage post([FromBody] Query query)
        {
            return getPata(request, query);
        }

        [Authorize]
        [HttpGet]
        public HttpResponseMessage get([FromUri] Query query)
        {
          return getPata(request, query);
        }

        private HttpResponseMessage getPata(typeofRequest request ,Query query)
        {
            if (User.IsInRole("admin"))
            {
                IQueryable<data_qy> Data = null;
				
                if (!string.IsNullOrEmpty(query.name))
                {
                    var ids = query.name.Split(',');

                    var dataMatchingTags = db.data_qy.Where(c => ids.Any(id => c.Name.Contains(id)));

                    if (Data == null)
                        Data = dataMatchingTags;
                    else
                        Data = Data.Union(dataMatchingTags);
                }

                if (Data == null) 
                    Data = db.data_qy;

               if (query.endDate != null)
                {
                    Data = Data.Where(c => c.UploadDate <= query.endDate);
                }

                if (query.startDate != null)
                {
                    Data = Data.Where(c => c.UploadDate >= query.startDate);
                }

                Data = Data.OrderByDescending(c => c.UploadDate);

                var data = Data.ToList();

                if (!data.Any())
                {
                    var message = string.Format("No data found");
                    return request.CreateErrorResponse(HttpStatusCode.NotFound, message);
                }

                return request.CreateResponse(HttpStatusCode.OK, data);
            }

            return request.CreateErrorResponse(HttpStatusCode.NotFound, "Access Denied, Please try again.");
} 
}