How to convert my jquery file upload code to uppy compatible xhr upload

Hello,
I am trying to move to uppy file upload from a previous component using jquery ajax to upload but th xhr upload is not working.

Im getting error 400 when uploading to server as shown below :

This is my previous working ajax file upload call :

 fileUpload.addEventListener('fileAdd.mdb.fileUpload', function(e) {
                   //post file to server 
                    const addedFiles =e.files; 
                    var antiForgeryToken = $("input[name=__RequestVerificationToken]").val();
                    var count = addedFiles.length;
                    var i;
                    for (i = 0; i < count; i++) {
                       addedFiles[i].uploadName =  getUniqueId() + addedFiles[i].name;
                     }
                    
                    // FormData
                    var formData = new FormData();
    
                     for (var i = 0; i != count; i++) {
                        formData.append("files", addedFiles[i], addedFiles[i].uploadName);
                      }
                     
                    formData.append('path', '@Model.TempUploadFolder');
                    formData.append('__RequestVerificationToken', antiForgeryToken);
                          // POST 
                                $.ajax({
                                    type: 'POST',
                                    url: '@Url.Action("Upload", "MediaAdmin", new { area = "OrchardCore.Media" })',
                                    data: formData,
                                    cache: false,
                                    contentType: false,
                                    processData: false,
                                    error: function error(jqXHR, textStatus, errorThrown) {
                                        
                                        console.log('error on upload!!');
 
                                    }
                                }).done(function (data, e) {
										console.log('success on upload!!');
                                  });
								  
				  } 

and this my new upp upload failing code :

  uppy.use(Uppy.XHRUpload, {
                    endpoint: '@Url.Action("Upload", "MediaAdmin", new { area = "OrchardCore.Media" })',
                    formData: true,
                    fieldName: 'files',
                    
                  })
                  // uppy.setMeta(data)
                  uppy.on('file-added', (file) => {
                    uppy.setFileMeta(file.id, {
                      uploadName: getUniqueId() + file.name 
                    })
                  })

How do I map my previous ajax call to uppy upload call ? Specifically how do I add the formdata to the post request ?

Thanks
Yiannis