Ionic connect to bank port

hi i want connect to bank port in my app.

in the web site i use this code

   <form id="form1" target="_top" method="post" Action="" *ngIf="activePortPay">
                    <input type="hidden" name="token" value="{{pasargadModel.clientToken}}" />
                    <input type="hidden" name="merchantId" value="{{pasargadModel.merchantId}}" />
                    <input type="hidden" name="PaymentId" value="{{pasargadModel.PaymentId}}" />
                    <button androidButton class="btn btn-primary nexus" type="submit">
                        <i class="fa fa-credit-card"></i>
                        اتصال به درگاه

how convert to ionic

I would look into using URLSearchParams. There’s an example here.

i want post form, and must show in browser inner

plz help me my friend