Uploads multiple types document (pdf,excel,img etc.) using ionicv1

Hi , I want user to uploads multiple type of document from their profile section . I did not any any way to achieve it, only some of tutorials provided the way to upload / capture images from camera / gallery.

I need to submit those documents to server along with other fields from my app as a form Submit in POST request.

Can anyone help me in this, how can I achieve it.