addAddress method
This method is responsible for updating a card request with the card's address information
Implementation
Future<dynamic> addAddress(ChargeRequestAddress chargeAddress) async {
Authorization auth = Authorization();
auth.mode = Authorization.AVS;
auth.address = chargeAddress.address;
auth.city = chargeAddress.city;
auth.state = chargeAddress.state;
auth.zipcode = chargeAddress.zipCode;
auth.country = chargeAddress.country;
this.chargeCardRequest.authorization = auth;
this.payWithCard(http.Client(), this.chargeCardRequest);
}