const formData = new FormData();
    formData.append('id', '12345678');

key:------WebKitFormBoundaryI1mdsdmKkradYVMSrnContent-Disposition: form-data; name

value: "id"rnrn12345678rn------WebKitFormBoundaryI1mdsdmKkradYVMS--rn

key: id
value: 12345678