Corresponding web api function to accept file - asp.net

Question

I am trying to upload file using retrofit, send it to the server side and save that file in my uploads folder.
This is my retrofit API instance:
#Multipart
#POST("file/uploaddocument")
Call<ResponseBody> uploadFile(#Part MultipartBody.Part file );
UploadFile:
private void uploadFile(Uri fileUri) {
// create upload service client
Retrofit retrofit = new Retrofit.Builder()
.baseUrl(BASE_URL)
.addConverterFactory(GsonConverterFactory.create())
.build();
MyApiEndpointInterface apiService =
retrofit.create(MyApiEndpointInterface.class);
// https://github.com/iPaulPro/aFileChooser/blob/master/aFileChooser/src/com/ipaulpro/afilechooser/utils/FileUtils.java
// use the FileUtils to get the actual file by uri
File file = Utils.getFileForUri(fileUri);
// create RequestBody instance from file
RequestBody requestFile =
RequestBody.create(
MediaType.parse(getContentResolver().getType(fileUri)),
file
);
// MultipartBody.Part is used to send also the actual file name
MultipartBody.Part body =
MultipartBody.Part.createFormData("file", file.getName(), requestFile);
// finally, execute the request
Call<ResponseBody> call = apiService.uploadFile(body);
call.enqueue(new Callback<ResponseBody>() {
#Override
public void onResponse(Call<ResponseBody> call,
Response<ResponseBody> response) {
UploadProgressDialog.dismiss();
Log.v("Upload", "success");
}
#Override
public void onFailure(Call<ResponseBody> call, Throwable t) {
UploadProgressDialog.dismiss();
Log.e("Upload error:", t.getMessage());
}
});
}
And I'm calling this method on button click as :
uploadFile(myfileuri);
This is my Web API call(Is this correct ? If not how to accept the image from client side ?)
<HttpPost>
<Route("api/File/UploadDocument", Name:="UploadDocument")>
Public Function Upload() As HttpResponseMessage
Try
Dim UploadedPath As String = HttpContext.Current.Server.MapPath("~/UploadedFiles")
Dim httpRequest = HttpContext.Current.Request
If httpRequest.Files.Count > 0 Then
For Each file As String In httpRequest.Files
Dim postedFile = httpRequest.Files(file)
postedFile.SaveAs(UploadedPath + "/")
Next
Else
End If
Dim message = Request.CreateResponse(HttpStatusCode.OK, "True")
Return message
Catch ex As Exception
Return Request.CreateErrorResponse(HttpStatusCode.BadRequest, ex)
End Try
End Function

Answer 1

This is how I done it...Posting here so that some one else might be found it useful
<HttpPost, Route("api/UploadFile")>
Public Function Post() As HttpResponseMessage
Try
Dim httpRequest = HttpContext.Current.Request
If httpRequest.Files.Count < 1 Then
Return Request.CreateResponse(HttpStatusCode.BadRequest)
End If
For Each file As String In httpRequest.Files
Dim postedFile = httpRequest.Files(file)
Dim filePath = HttpContext.Current.Server.MapPath("~/UploadedFiles/" + postedFile.FileName)
' NOTE: To store in memory use postedFile.InputStream
postedFile.SaveAs(filePath)
Next
Return Request.CreateResponse(HttpStatusCode.NoContent)
Catch ex As Exception
Return Request.CreateErrorResponse(HttpStatusCode.BadRequest, ex)
End Try
End Function