dot net Core 3.1 API HttpRequest returns usually bad request without even sending the request - json

Question

I have a strange issue with my HttpRequest, i have 2 application one is clientside and the other one is RESTAPI, the issue is i am trying to update my entity by sending a request which the content is Json
public async Task<bool> Update(string url, T obj, string id)
{
var request = new HttpRequestMessage(HttpMethod.Put, url+id);
if (obj == null || String.IsNullOrEmpty(id))
{
return false;
}
request.Content = new StringContent(JsonConvert.SerializeObject(obj),
Encoding.UTF8, "application/json");
var client = _client.CreateClient();
client.DefaultRequestHeaders.Authorization =
new AuthenticationHeaderValue("bearer", GetBearerToken());
HttpResponseMessage response = await client.SendAsync(request);
if (response.StatusCode == System.Net.HttpStatusCode.NoContent)
{
return true;
}
return false;
}
And here is my clientapp controller below;
[HttpPost]
public async Task<IActionResult> EditUser([FromForm] UserDTO userDTO ,string id)
{
if (!ModelState.IsValid)
{
return RedirectToAction("ErrorPage", "Error");
}
userDTO.Id = id;
await _userRepository.Update(EndPoints.UserEndPoint,userDTO,id);
return RedirectToAction("GetUsers");
}
and i dont know if it is necessary because it doesnt hit even the breakpoint but i am also showing my RESTAPI code below;
/// <summary>
/// Update user
/// </summary>
/// <param name="id"></param>
/// <param name="userDTO"></param>
/// <returns></returns>
[HttpPut("{id}")]
[Authorize(Roles = "Administrator")]
[ProducesResponseType(StatusCodes.Status200OK)]
[ProducesResponseType(StatusCodes.Status400BadRequest)]
[ProducesResponseType(StatusCodes.Status404NotFound)]
[ProducesResponseType(StatusCodes.Status500InternalServerError)]
public async Task<IActionResult> UpdateUser(string id, [FromBody] UserDTO userDTO)
{
var location = GetControllerActionNames();
try
{
_logger.LogInfo($"{location}: Requested an Update for id: {id} ");
if (string.IsNullOrEmpty(id) || userDTO == null || id != userDTO.Id)
{
_logger.LogError($"{location}: Request for Id: {id} is not sucessful");
return BadRequest();
}
if (!ModelState.IsValid)
{
_logger.LogWarn($"{location}: Data was incomplete!");
return BadRequest(ModelState);
}
var isExist = await _userRepo.IsExist(id);
if (!isExist)
{
_logger.LogWarn($"{location}: with Id: {id} is not exisist");
return NotFound();
}
var usermap = _mapper.Map<CompanyUser>(userDTO);
if (usermap == null)
{
_logger.LogWarn($"{location}: Data is empty");
return BadRequest();
}
var response = await _userRepo.Update(usermap);
if (!response)
{
_logger.LogError($"{location}: Update is failed ");
return NotFound();
}
_logger.LogInfo($"User is Updated");
return NoContent();
}
catch (Exception e)
{
return InternalError($"{location} - {e.Message} - {e.InnerException}");
}
}
RESTAPI code is working when i try with PostMan.
But from the client side where i send the request it sometimes works but usually gives bad request as response instanly i mean not even go to my RESTAPI. Can you help to resolve this strange problem.

Answer 1

I fixed the issue, on my API Login
Because i was using Microsoft Identity and when i use await PasswordEmailSignInAsync(userName, password, false, false); it automatically genereates application cookie on my API side and i used fiddler to capture requests and i saw there when i get an error or on my API side when the thread exits the application cookie also expires after that when i made a new request from my Client to My API it was giving the bad request on my client side instantly.
So i changed my signin method to var user = await _userManager.FindByEmailAsync(userDTO.Email); var result = await _userManager.CheckPasswordAsync(user, userDTO.Password);
in order to avoid from the application cookie creation. I had already JWT token structure in my application but was useless because default authorized attribute was not using bearer schema and i modified my startup.cs a little help from [Authorize Attribute not working with JWT Access Token in ASP.Net Core1
and now everything works without any problem!.
[Route("login")]
[HttpPost]
[AllowAnonymous]
[ProducesResponseType(StatusCodes.Status200OK)]
[ProducesResponseType(StatusCodes.Status401Unauthorized)]
public async Task<IActionResult> Login([FromBody] UserLoginDTO userDTO)
{
var location = GetControllerActionNames();
try
{
var userName = userDTO.Email;
var password = userDTO.Password;
_logger.LogInfo($"{location}: User:{userName} - Attempted to Login");
//var result = await PasswordEmailSignInAsync(userName, password, false, false);
var user = await _userManager.FindByEmailAsync(userDTO.Email);
var result = await _userManager.CheckPasswordAsync(user, userDTO.Password);
if (result)
{
_logger.LogInfo($"{location}: User:{userName} Logged in Succesfully");
var tokenstring = await GenerateJSONWebToken(user);
return Ok(new { token = tokenstring });
}
_logger.LogWarn($"{location}: User:{userName} couldnt logged in ");
return Unauthorized(userDTO);
}
catch (Exception e)
{
return InternalError($"{location} - {e.Message} - {e.InnerException}");
}
}