POST request: How do I have 1 [FromBody] class/object argument 1 IFormFile argument in the same re-CodePudding

I am looking to receive 1 CNCTask class object from the body, but I also need to transfer a file in the same POST request. I have written out my POST route definition as:

[HttpPost("TaskUpload")]
[Consumes("application/json")]
public async Task<ActionResult<CNCTask>> Post([FromBody] CNCTask task, IFormFile file)

With my route defined as such, I just don't get how I will even transfer the file (e.g. when testing from Postman). A file would usually be sent in the body (I think ?), but if I already have my CNCTask object being selected by the [FromBody], how do I negotiate this file transfer as well ?

I'm quite confused as to how to send both the class object and the file. Any tips would be appreciated.

CodePudding user response：

you have to create a ViewModel

public class ViewModel
{
 public CNCTask Task {get; set;}
 public IFormFile File {get; set;}
}

action

[HttpPost("TaskUpload")]
public async Task<ActionResult<CNCTask>> Post(ViewModel viewModel)

CodePudding user response：

You can retrive form data as follows

var formdata = Request.Form["formdata"];
var model = JsonConvert.DeserializeObject<ModelEntity>(formdata);

And write your controller this way

public async Task<ActionResult<CNCTask>> Post(IFormFile file)
{
    var formdata = Request.Form["formdata"];
    var model = JsonConvert.DeserializeObject<InitialDemandEntity>(formdata);
            ...
}