如何从控制器发布表单数据IFormFile到API ?

Question

在api IFormFile中收到null .

Javascript:

var archivo = _('inputCargar').files[0];        
const form = new FormData();
form.append("files", archivo);
const config = {
headers: {
'content-type': 'multipart/form-data'}}     
await axios.post(`${data.urlUtil}Insert_FileAzure`, form, config);

表单文件到达控制器，但不能到达api控制器在前:

public async Task<JsonResult> Insert_FileAzure([FromForm]  ICollection<IFormFile> files)
{

var result = await _apiUtil.PostAsync<ICollection<IFormFile>> ("File/UploadAzure", files);
return Json(result);
}

API:

[HttpPost]
public async Task<ActionResult<RespuestaUpload>> UploadAzure([FromForm(Name = "files")] ICollection<IFormFile> files)
{
if (files == null || files.Count == 0)
return Content("file not selected");
var respuestaUpload = await _utiles.UploadFilesAzure(files);
return Ok(respuestaUpload);
}

Answer 1

使用MultipartFormDataContent作为httpContent，如下所示:

var Client = new HttpClient();
var multipartFormDataContent = new MultipartFormDataContent();
foreach (IFormFile file in files)
{
byte[] fileData;
using (var reader = new BinaryReader(file.OpenReadStream()))
{
fileData = reader.ReadBytes((int)file.OpenReadStream().Length);
}
var fileContent = new ByteArrayContent(fileData);
multipartFormDataContent.Add(fileContent, "files", file.FileName);
}
var response = await Client.PostAsync(requestUrl, multipartFormDataContent);