Problem uploading files via asp.net core api

Why can I upload files via the Postman application, but when I use Microsot, I cannot upload where is the problem with the following code?

Model is:

public class Book
{
[Key]
public int BookId { get; set; }
[Display(Name = "Book name")]
[Required(ErrorMessage = "Data feild is required")]
public string BookName { get; set; }
[Display(Name ="Book details")]
[Required(ErrorMessage = "Data feild is required")]
public string BookDetails { get; set; }
[Display(Name = "Publish date")]
[DisplayFormat(DataFormatString = "{0:yyyy-MM-dd}", ApplyFormatInEditMode = true)]
[Required(ErrorMessage = "Data feild is required")]
public DateTime BookPdate { get; set; }
[Display(Name = "Book name")]
[Required(ErrorMessage = "Data feild is required")]
[ForeignKey("Author")]
public int AuthortId { get; set; }
public virtual Author Author { get; set; }
public string ImagePath { get; set; }
[NotMapped]
public IFormFile ImageFile { get; set; }
}

Client controller method:

[HttpPost]
public IActionResult AddOrEdit(Book book)
{
if (book.BookId == 0)
{
HttpResponseMessage resp = GlobalApiClient.webApiClient.PostAsJsonAsync("Books", book).Result;
TempData["SuccessMsg"] = "Saved Successfully ... ";
return RedirectToAction("Index");
}
else
{
HttpResponseMessage resp = GlobalApiClient.webApiClient.PutAsJsonAsync("Books/" + book.BookId , book).Result;
if (resp.IsSuccessStatusCode)
{
TempData["SuccessMsg"] = "Updated Successfully ... ";
}
else
{
TempData["SuccessMsg"] = "Updated not complete ... ";
}
return RedirectToAction("Index");
}
}

Api controller method:

//// PUT api//5
[HttpPut("{id}")]
public async Task Put(int id,[FromBody] Book book)
{
if (ModelState.IsValid)
{
try
{
if (id == book.BookId)
{
string fileName = book.ImagePath;
if (book.ImageFile.Length > 0)
{
string path = hosting.WebRootPath + "\\Uploads\\";
if (!Directory.Exists(path))
{
Directory.CreateDirectory(path);
}
using (FileStream fileStream = System.IO.File.Create(path + book.ImageFile.FileName))
{
book.ImageFile.CopyTo(fileStream);
fileStream.Flush();
}
}
book.ImagePath = fileName;
await bookRepo.Update(book);
return Ok();
}
return NotFound();
}
catch (Exception)
{
return BadRequest();
}
}
return BadRequest();
}

3 Replies

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Sachin Singh5y ago
are you able to post any data to controller cause you have not specified controller name in Action of form.
"Home" asp-action="AddOrEdit" method="post"
      enctype="multipart/form-data">

    "file" name="file" />
    "submit">Upload File
taha suliman5y ago
I do not think the problem is because of the name than in the View, Yes I'can post data,and the (ImageFile) get null value
"AddOrEdit" enctype="multipart/form-data" method="post">
"ModelOnly" class="text-danger">
"hidden" asp-for="BookId" />
"hidden" asp-for="ImagePath" />
class="form-group">
for="BookName" class="control-label">label>
for="BookName" class="form-control" />
for="BookName" class="text-danger">