Bind route parameter & values from json body to the model - .net-core

Question

I have a put API in .net core 3.1 Web API project.
URL: https://localhost:44319/api/user/4
Controller method:
[HttpPut("{id}")]
[ProducesResponseType(typeof(UpdateUserCommandResponse), StatusCodes.Status200OK)]
public async Task<ActionResult<UpdateUserCommandResponse>> PutUser(UpdateUserCommand updateUserCommand)
{}
UpdateUserCommand model:
public class UpdateUserCommand : IRequest<UpdateUserCommandResponse>
{
[FromRoute(Name = "id")]
public int Id { get; set; }
public string FirstName { get; set; }
public string LastName { get; set; }
}
Is it possible to populate Id in model from the URL & rest of the fields from the json body? Right now, Id remain 0
I would also like to not include the attribute right in the model, since the same
--- Updated Code -----
[HttpPut("{id}")]
[ProducesResponseType(typeof(UpdateUserCommandResponse), StatusCodes.Status200OK)]
public async Task<ActionResult<UpdateUserCommandResponse>> PutUser(UpdateUserCommand updateUserCommand)
{
var response = await _mediator.Send(updateUserCommand);
return Ok(response);
}
public class UpdateUserCommand : IRequest<UpdateUserCommandResponse>
{
//[FromRoute]
public int Id { get; set; }
[FromForm]
public string FirstName { get; set; }
[FromForm]
}

Answer 1

It will be working properly without any attributes at all if you select Content-Type
application/x-www-form-urlencoded
//or
multipart/form-data
or if you still have some problem you can try this
public int Id { get; set; }
[FromForm]
public string FirstName { get; set; }
[FromForm]
public string LastName { get; set; }
if you select Content-Type
application/json
you will have to change your action
[HttpPut("{id}")]
... PutUser( int id, [FromBody] UpdateUserCommand updateUserCommand)
{}
and IMHO remove [ProducesResponseType(typeof(UpdateUserCommandResponse), StatusCodes.Status200OK)] . I can't see what do you need it for