Passsing Model RedirectToAction without DataTemp, Unsupported Media Type : status 415

Question

At my Accounts controller, I want to call the Get Profile method using RedirectToAction. I read some StackOverflow that said to use DataTemp[""], but the DataTemp method is not found.

   [HttpPost("Login")]
    public ActionResult Post(LoginVM loginVM)
    {
        var result = accountRepository.Login(loginVM);
        switch (result)
        {
            case 1:
                return RedirectToAction("GetProfile","Accounts", loginVM);
            default:
                return BadRequest(new { status = HttpStatusCode.BadRequest});
        }
    }

   [HttpGet("Profile")]
    public ActionResult GetProfile(LoginVM loginVM)
    {
        var result = accountRepository.Profile(loginVM);
        if (result.Count() != 0)
        {
            return Ok(new { status = HttpStatusCode.OK, result = result});
        }
        return NotFound(new { status = HttpStatusCode.NotFound});
    }

this is the error when I try to input to post man, I'm already use Json type to post

{
"type": "https://tools.ietf.org/html/rfc7231#section-6.5.13",
"title": "Unsupported Media Type",
"status": 415,
"traceId": "00-843c7cb9a3c8d04ca7ca174758086054-e86c66c3adb00b40-00"
}

my repo type

   public IEnumerable<ProfileVM> Profile(LoginVM loginVM).ToList()

Answer 1

Hi @Bagoes Heikhal ,

Unsupported Media Type

The HTTP 415 Unsupported Media Type client error response code indicates that the server refuses to accept the request because the payload format is in an unsupported format.
The format problem might be due to the request's indicated Content-Type or Content-Encoding, or as a result of inspecting the data directly.
You use Postman for testing, please try to add this section to Headers: Content-Type: application/json
Best regards,
Lan Huang

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Answer 2

The action is a get, you can not send json. The parameters should be passed as query string parameters.

Answer 3

As explained by Bruce-SqlWork, your design submits a GET. GET parameters are passed in the query string.

[HttpPost("Login")]  
public ActionResult Post([FromBody]LoginVM loginVM)  
{  
    var result = accountRepository.Login(loginVM);  
    switch (result)  
    {  
        case 1:  
            return Redirect($"/Profile/?Username={loginVM.Username}&Password={loginVM.Password}");  
        default:  
            return BadRequest("Post");  
    }  
}  
[HttpGet("Profile")]  
public ActionResult GetProfile(string Username, string Password)  
{  
    LoginVM loginVM = new LoginVM() { Username = Username, Password = Password };  
    var result = accountRepository.Profile(loginVM);  
    if (result.Count() != 0)  
    {  
        return Ok(new { result = result });  
    }  
    return NotFound("GetProfile");  
}  

Do not pass login credentials in the URL. The standard approach is to populate an authentication cookie. Please see the following tutorial.

Use cookie authentication without ASP.NET Core Identity