Canno't transfer image in file Transfer plugin

Hello,
I try transfer image with file Transfer plugin to api php but when i check if file has transfer or not … I have a empty array in php:

code ts:

  uploadFile() {     
    var headers = new Headers();
	headers.append('Content-Type', 'multipart/form-data');

  let loader = this.loadingCtrl.create({
    content: "Uploading..."
  });
  var fileTransfer: FileTransferObject = this.transfer.create(); 

if(this.images.length >0){
  
 loader.present();

  for(var x=0;x<=this.images.length-1;x++)
  {
    if (this.images[x] !== "K" && this.images[x] !== "O") {
      
this.base64.encodeFile(this.images[x]).then((base64File: string) => {
  fileTransfer.upload(base64File, 'https://6c15a567.ngrok.io/wetry-api/web/upload', {
    fileKey: 'ionicfile'+x,
    fileName: 'ionicfile'+x,
    chunkedMode: false,
    mimeType: "image/jpeg",
    headers: {}
  })
    .then((data) => {
    this.presentToast("success upload");
    this.presentToast(data.response);

  }, (err:FileTransferError) => {
    loader.dismiss();
    this.presentToast("error upload");
   this.presentToast(err.exception);
  });
    }, (err) => {
  this.presentToast(err);
  this.presentToast('error encode');
});
  }
    if(x === this.images.length) { loader.dismiss(); }
    }
} else this.presentToast("please select images"); 

}

now how to resolve this error and transfer file

hi , when you encode your file to base64 , you dont need fileTransfer , just send base64File (string) in post command to your api like any other string , and in your api you must decode your string to an file with the same extension .

Can you add any screenshot or video how todo this correctly?