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Question

While calling an apiController method from Postman I encountered a problem.

the method with params mentioned in Postman client call below method

    [AllowAnonymous]
    [HttpPost]
    public IActionResult Register([FromBody]UserDto userDto)
    {
        // map dto to entity
        //var user = _mapper.Map<User>(userDto);
        return Ok(new
        {
            userDto
        });

        //try
        //{
        //    // save 
        //    _userService.Create(user, userDto.Password);
        //    return Ok();
        //}
        //catch (AppException ex)
        //{
        //    // return error message if there was an exception
        //    return BadRequest(new { message = ex.Message });
        //}
    }

which maps the UserDto..

public class UserDto
{
    public int Id { get; set; }
    public string FirstName { get; set; }
    public string LastName { get; set; }
    public string Username { get; set; }
    public string Password { get; set; }
}

but instead I get the error below :

Postman Client

FromBody is for JSON data. You are passing Form data. Those are not compatible. Use Body > Raw in Postman and put the JSON there. Otherwise, use a more proper tool like Swagger — Camilo Terevinto, Oct 09 '18 at 17:30
You can also use `[FromForm]` instead of FromBody if you have to use form data encoding. I believe it will also infer this if you skip the attribute altogether. — Eric Damtoft, Oct 09 '18 at 17:36
@CamiloTerevinto: Did that too [{ "Id": 1, "FirstName": "Jason", "LastName": "Bond", "Username": "Jason", "Password": "helllo"}].. same result — Jason, Oct 09 '18 at 17:39
@Jason That's because your method is set to receive a single entity, whereas you just tried passing an array of entities. — , Oct 09 '18 at 17:41
For the temp code used above after mentioning correct JSON type it returned as expected but for actual code `_userService.Create(user, userDto.Password); return Ok();` an unexpected exception at console appears.. `*info: Microsoft.AspNetCore.Server.Kestrel[32] Connection id "0HLHE2K4LHFNC", Request id "0HLHE2K4LHFNC:00000001": the application completed without reading the entire request body.* ` — Jason, Oct 09 '18 at 18:56
Try this https://stackoverflow.com/questions/51424273/net-core-2-1-post-an-iformfile-using-postman-the-application-completed-with — Eldho, Oct 10 '18 at 06:15

score 0 · Answer 1 · answered Oct 09 '18 at 17:41

0

Use raw option and select json from dropdown and add your dto value in the body.

Raw

{
"FirstName" : "yourname",
"LastName": "lastname"
}

answered Oct 09 '18 at 17:41

Eldho

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That works just for the temp code I put in.. For actual code it seems some exception..`**info: Microsoft.AspNetCore.Server.Kestrel[32] Connection id "0HLHE2K4LHFNC", Request id "0HLHE2K4LHFNC:00000001": the application completed without reading the entire request body.**` – Jason Oct 09 '18 at 18:42

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1 Answers1