Set Integer header value in asp.net MVC - asp.net

I want to set an Int Header value for terminalId.
Currently HttpClient header only takes <String, String> pairs. How can I add a header with <String, int>?
This Web service accept Int for terminalId.
Following Code :
using (var client = new HttpClient())
{
client.BaseAddress = new Uri("http://localhost:8678");
var postview = new CitizenResult
{
cpartyUsername = "abc",
cpartyPassword = "123",
};
client.DefaultRequestHeaders.Accept.Clear();
client.DefaultRequestHeaders.Add("token", "d448f575db31a44e32e0a17f24bc947cdd4edb4a7db8729734c81b9e139286af36dd9c5e42793d494e0f7bd45b25e5f3b77472949f38bcdb3dfa2b8d1ef376848ec6ce65b9a7d7be343c5c1b59089082");
client.DefaultRequestHeaders.Add("clientIPAddress", "178.173.147.4");
client.DefaultRequestHeaders.Add("clientAgentInfo", "192.168.0.227");
client.DefaultRequestHeaders.Add("terminalId", 123);
int a = 190766;
var postTask = client.PostAsJsonAsync<CitizenResult>("http://test", postview);
postTask.Wait();
var result = postTask.Result;
if (result.IsSuccessStatusCode)
{
var x = result.Content.ReadAsAsync<SalamtResultViewModel>();
ViewBag.x = x;
}
else
{
var x = result.Content.ReadAsAsync<badRequestResult>();
ViewBag.x = x;
}
}

When you add the integer just call the .toString() method.
client.DefaultRequestHeaders.Add("terminalId", 123.toString());
or
client.DefaultRequestHeaders.Add("terminalId", a.toString());
This is because the header can be considered as just a JSON object where everything is stored in quotes like this:
{
"key": "value"
}
so your entry would be stored like this
"terminalId": "123"
JSON can hold information like:
"terminalId": 123
but there are no overloads available for that.

Related

Getting error when a method is made for post request

When made I post request is made its giving internal server. Is the implementation of Flurl is fine or I am doing something wrong.
try
{
Models.PaymentPost paymentPost = new Models.PaymentPost();
paymentPost.Parts = new Models.Parts();
paymentPost.Parts.Specification = new Models.Specification();
paymentPost.Parts.Specification.CharacteristicsValue = new List<Models.CharacteristicsValue>();
paymentPost.Parts.Specification.CharacteristicsValue.Add(new Models.CharacteristicsValue { CharacteristicName = "Amount", Value = amount });
paymentPost.Parts.Specification.CharacteristicsValue.Add(new Models.CharacteristicsValue { CharacteristicName = "AccountReference", Value = accountId });
foreach (var item in extraParameters)
{
paymentPost.Parts.Specification.CharacteristicsValue.Add(new Models.CharacteristicsValue {
CharacteristicName = item.Key, Value = item.Value });
}
var paymentInJson = JsonConvert.SerializeObject(paymentPost);
var selfCareUrl = "http://svdt5kubmas01.safari/auth/processPaymentAPI/v1/processPayment";
var fUrl = new Flurl.Url(selfCareUrl);
fUrl.WithBasicAuth("***", "********");
fUrl.WithHeader("X-Source-System", "POS");
fUrl.WithHeader("X-Route-ID", "STKPush");
fUrl.WithHeader("Content-Type", "application/json");
fUrl.WithHeader("X-Correlation-ConversationID", "87646eaa-2605-405e-967c-56e8002b5");
fUrl.WithHeader("X-Route-Timestamp", "150935");
fUrl.WithHeader("X-Source-Operator", " ");
var response = await clientFactory.Get(fUrl).Request().PostJsonAsync(paymentInJson).ReceiveJson<IEnumerable<IF.Models.PaymentPost>>();
return response;
}
catch (FlurlHttpException ex)
{
dynamic d = ex.GetResponseJsonAsync();
//string s = ex.GetResponseStringAsync();
return d;
}
You don't need to do this:
var paymentInJson = JsonConvert.SerializeObject(paymentPost);
PostJsonAsync just takes a regular object and serializes it to JSON for you. Here you're effectively double-serializing it and the server is probably confused by that format.
You're also doing a lot of other things that Flurl can do for you, such as creating those Url and client objects explicitly. Although that's not causing errors, this is how Flurl is typically used:
var response = await selfCareUrl
.WithBasicAuth(...)
.WithHeader(...)
...
.PostJsonAsync(paymentPost)
.ReceiveJson<List<IF.Models.PaymentPost>>();

Use stored procedure for search method

I started with ASP.Net Core 2.0, I'm trying to rewrite a method GetAll by search use stored procedure. Here is method search:
public async Task<List<DepartmentTypeDto>> SearchDepartmentType()
{
EnsureConnectionOpen();
using (var command = CreateCommand("CM_DEPT_GROUP_Search", CommandType.StoredProcedure))
{
using (var dataReader = await command.ExecuteReaderAsync())
{
List<DepartmentTypeDto> result = new List<DepartmentTypeDto>();
while (dataReader.Read())
{
DepartmentTypeDto departmentTypeDto = new DepartmentTypeDto
{
GROUP_ID = dataReader["GROUP_ID"].ToString(),
GROUP_CODE = dataReader["GROUP_CODE"].ToString(),
GROUP_NAME = dataReader["GROUP_NAME"].ToString(),
NOTES = dataReader["NOTES"].ToString(),
RECORD_STATUS = dataReader["RECORD_STATUS"].ToString(),
MAKER_ID = dataReader["MAKER_ID"].ToString(),
CREATE_DT = Convert.ToDateTime(dataReader["CREATE_DT"]),
AUTH_STATUS = dataReader["AUTH_STATUS"].ToString(),
CHECKER_ID = dataReader["CHECKER_ID"].ToString(),
APPROVE_DT = Convert.ToDateTime(dataReader["APPROVE_DT"]),
AUTH_STATUS_NAME = dataReader["AUTH_STATUS_NAME"].ToString(),
RECORD_STATUS_NAME = dataReader["RECORD_STATUS_NAME"].ToString()
};
}
return result;
}
}
}
Here is the service:
public async Task<PagedResultDto<GetDepartmentTypeForView>> GetAll(GetAllDepartmentTypesInput input)
{
var filteredDepartmentTypes = _departmentTypeRepository.SearchDepartmentType();
var query = (from o in filteredDepartmentTypes
select new GetDepartmentTypeForView() { DepartmentType = ObjectMapper.Map<DepartmentTypeDto>(o) });
var totalCount = await query.CountAsync();
var departmentTypes = await query
.OrderBy(input.Sorting ?? "departmentType.id asc")
.PageBy(input)
.ToListAsync();
return new PagedResultDto<GetDepartmentTypeForView>(totalCount, departmentTypes);
}
But I get an error:
Task<List<DepartmentTypeDto>> does not contain a definition for Select
Does anyone know what I should do? I work on Asp.Net Zero.
I changed my search method
public IQueryable<DepartmentTypeView> SearchDepartmentType(GetAllDepartmentTypesInput input, int top)
{
try
{
var GROUP_FILTER = input.Filter;
var GROUP_CODE = input.GROUP_CODEFilter;
var GROUP_NAME = input.GROUP_NAMEFilter;
var AUTH_STATUS = input.AUTH_STATUSFilter;
var result = Context.Query<DepartmentTypeView>().FromSql($"EXEC CM_DEPT_GROUP_Search #p_GROUP_FILTER = {GROUP_FILTER}, #p_GROUP_CODE={GROUP_CODE}, #p_GROUP_NAME={GROUP_NAME}, #p_AUTH_STATUS={AUTH_STATUS}, #p_TOP={top}");
return result;
}
catch
{
return null;
}
}
and in the service, I call that function
var filteredDepartmentTypes = _departmentTypeRepository.SearchDepartmentType(input,100);
I also create new class to keep the result and don't forget to map that class with DTO class
configuration.CreateMap<DepartmentTypeView, DepartmentTypeDto>();
It works for me.

Response on created context keeps giving me NullStream

I'm trying to write a middleware for batch requests i .net core 2.0.
So far the I have splitted the request, pipe each request on to the controllers.
The controllers return value, but for some reason the response on the created context that I parse to the controllers keeps giving me a NullStream in the body, so I think that there is something that I miss in my setup.
The code looks like this:
var json = await streamHelper.StreamToJson(context.Request.Body);
var requests = JsonConvert.DeserializeObject<IEnumerable<RequestModel>>(json);
var responseBody = new List<ResponseModel>();
foreach (var request in requests)
{
var newRequest = new HttpRequestFeature
{
Body = request.Body != null ? new MemoryStream(Encoding.ASCII.GetBytes(request.Body)) : null,
Headers = context.Request.Headers,
Method = request.Method,
Path = request.RelativeUrl,
PathBase = string.Empty,
Protocol = context.Request.Protocol,
Scheme = context.Request.Scheme,
QueryString = context.Request.QueryString.Value
};
var newRespone = new HttpResponseFeature();
var requestLifetimeFeature = new HttpRequestLifetimeFeature();
var features = CreateDefaultFeatures(context.Features);
features.Set<IHttpRequestFeature>(newRequest);
features.Set<IHttpResponseFeature>(newRespone);
features.Set<IHttpRequestLifetimeFeature>(requestLifetimeFeature);
var innerContext = _factory.Create(features);
await _next(innerContext);
var responseJson = await streamHelper.StreamToJson(innerContext.Response.Body);
I'm not sure what it is I'm missing in the setup, since innerContext.Response.Body isn't set.
One of the endpoints that I use for testing and that gets hit looks like this
[Route("api/[controller]")]
public class ValuesController : Controller
{
// GET api/values
[HttpGet]
public IEnumerable<string> Get()
{
return new string[] { "value1", "value2" };
}
}
I found the error, or two errors for it to work.
First I had to change my newResponse to
var newRespone = new HttpResponseFeature{ Body = new MemoryStream() };
Since HttpResponseFeature sets Body to Stream.Null in the constructor.
When that was done, then Body kept giving an empty string when trying to read it. That was fixed by setting the Position to Zero like
innerContext.Response.Body.Position = 0;

Is there a utility to serialise an object as HTTP content type "application/x-www-form-urlencoded"?

I've never had to do this before, because it's always only been an actual form that I've posted as that content type, but recently I had to post three variables like that, and I resorted to a sordid concatenation with & and =:
var content = new StringContent("grant_type=password&username=" + username + "&password=" + password.ToClearString(), Encoding.UTF8,
"application/x-www-form-urlencoded");
I'm sure there must be a utility method that would do that, and do it better, with any necessary encoding. What would that be?
If this is a POCO and just using the Newtonsoft library, you can use this as well:
public static class FormUrlEncodedContentExtension
{
public static FormUrlEncodedContent ToFormUrlEncodedContent(this object obj)
{
var json = Newtonsoft.Json.JsonConvert.SerializeObject(obj);
var keyValues = JsonConvert.DeserializeObject<Dictionary<string, string>>(json);
var content = new FormUrlEncodedContent(keyValues);
return content;
}
}
And a sample usage would be:
var myObject = new MyObject {Grant_Type = "TypeA", Username = "Hello", Password = "World"};
var request = new HttpRequestMessage(HttpMethod.Post, "/path/to/post/to")
{
Content = myObject.ToFormUrlEncodedContent()
};
var client = new HttpClient {BaseAddress = new Uri("http://www.mywebsite.com")};
var response = await client.SendAsync(request);
Use reflection to get the property names and values and then use them to create a System.Net.Http.FormUrlEncodedContent
public static class FormUrlEncodedContentExtension {
public static FormUrlEncodedContent ToFormUrlEncodedContent(this object obj) {
var nameValueCollection = obj.GetType()
.GetProperties()
.ToDictionary(p => p.Name, p => (p.GetValue(obj) ?? "").ToString());
var content = new FormUrlEncodedContent(nameValueCollection);
return content;
}
}
From there it is a simple matter of calling the extension method on an object to convert it to a FormUrlEncodedContent
var model = new MyModel {
grant_type = "...",
username = "...",
password = "..."
};
var content = model.ToFormUrlEncodedContent();
You should be able to use string interpolation for that. Something like:
var content = new StringContent($"grant_type=password&username={username}&password={password}", Encoding.UTF8, "application/x-www-form-urlencoded");
Or wrap this inside a helper/factory method:
public static class StringContentFactory
{
public static StringContent Build(string username, string password)
{
return new StringContent($"grant_type=password&username={username}&password={password}", Encoding.UTF8, "application/x-www-form-urlencoded");
}
}

LINQ to Entities does not recognize the method 'System.String ToString()' method, and this method cannot be translated into a store expression

LINQ to Entities does not recognize the method 'System.String ToString()' method, and this method cannot be translated into a store expression.
public ActionResult PopulateFromDB(string sidx, string sord, int page, int rows)
{
var context = new NerdDinnerEntities();
var jsonData = new
{
total = 1,
page = page,
sord =sord,
records = context.Authors.Count(),
rows = (from n in context.Authors
select new
{ AuthorId = n.AuthorId ,
cell = new string[] { n.AuthorId.ToString(), n.Name.ToString(), n.Location.ToString() }
}).ToList()
};
return Json(jsonData, JsonRequestBehavior.AllowGet);
}
I am writting ToList or Toarray is it not working the error comes :
public ActionResult PopulateFromDB(string sidx, string sord, int page, int rows)
{
var context = new NerdDinnerEntities();
var jsonData = new
{
total = 1,
page = page,
sord =sord,
records = context.Authors.Count(),
rows = (from n in context.Authors
select new
{ AuthorId = n.AuthorId ,
cell = new string[] { n.AuthorId.ToString(), n.Name.ToString(), n.Location.ToString() }
}).ToList()
};
return Json(jsonData,JsonRequestBehavior.AllowGet);
}
From your code I assume your adding a custom property cell for display/storage purposes on the client-side. I would avoid this as your essentially coupling your API call to one particular client. I would suggest you simply return the data required & deal with it at the client-side specifically e.g.
Server
...
select new
{
Id = n.AuthorId,
Name = n.Name,
Location = n.Location
}).ToList();
...
Client
var response = ...
foreach (var author in response)
{
var cell = new string[] { author.Id.ToString(), author.Name, author.Location };
// do something with cell
}
You should try SqlFunctions.StringConvert to convert this, There is no overload for int so you should cast your number to a double or a decimal.
public ActionResult PopulateFromDB(string sidx, string sord, int page, int rows)
{
var context = new NerdDinnerEntities();
var jsonData = new
{
total = 1,
page = page,
sord =sord,
records = context.Authors.Count(),
rows = (from n in context.Authors
select new
{ AuthorId = n.AuthorId ,
cell = new string[] { SqlFunctions.StringConvert((double)n.AuthorId), n.Name, n.Location }
}).ToList()
};
return Json(jsonData,JsonRequestBehavior.AllowGet);
}
You are not using LinqToSql Classes, if you were using that your code should work, but as you mention that you are using LinqToEntity then You should use SqlFunctions.StringConvert to convert to string.

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