how can i integrate ng2-file-upload in for data with body in Angular14

Question

i want to now how can i intgrate ng2-file-upload with form data using Nestjs And Angular , I'm new in Angular i want to upload file with formdata

  uploader: FileUploader = new FileUploader({
    url: URL
  });

this.form = new FormGroup({
  Nom: new FormControl('', [Validators.required]),
  Prix: new FormControl('', Validators.required),
  DateExp: new FormControl('', Validators.required),
  Image: new FormControl(''),
  categorie: new FormControl('', [Validators.required]),
});

this.uploader.onBuildItemForm = (fileItem: any, form: FormData): any => {
  // Add file to upload
  form.append('file', fileItem);

  return {fileItem, form};
};

submit() {

  if (this.form.invalid) {
    return
  }
  this.produitService.create(this.form.value).subscribe(
    res => {
      console.log(res);
    },
    err => console.error(err)
  );
  // alert(JSON.stringify(this.registrationForm.value));
}