How to paymentMetghodNounce from result from braintree in ios - ios

Question

I am using braintree ios sdk and using their Drop in UI to add a customer card details. i am getting the UI successfully and after the customer submit the information, how can i get the paymentMEthodNounce from the result object. here is my code.
- (void)showDropIn:(NSString *)clientTokenOrTokenizationKey {
BTDropInRequest *request = [[BTDropInRequest alloc] init];
BTDropInController *dropIn = [[BTDropInController alloc] initWithAuthorization:clientTokenOrTokenizationKey request:request handler:^(BTDropInController * _Nonnull controller, BTDropInResult * _Nullable result, NSError * _Nullable error) {
if (error != nil) {
NSLog(#"ERROR");
} else if (result.cancelled) {
NSLog(#"CANCELLED");
} else {
// Use the BTDropInResult properties to update your UI
// result.paymentOptionType
// result.paymentMethod
// result.paymentIcon
// result.paymentDescription
}
}];
[self presentViewController:dropIn animated:YES completion:nil];}
i think when the customer submit the result, payment nounce will be result object?? if it thinking is right how can get that nounce to a variable to send it to my server. i am fairly new in ios, so any help will be appreciated.

Answer 1

For the new iOS v4 SDK I had to import Braintree also, I didn't have access to the paymentMethod property of the BTDropInResult otherwise.
import BraintreeDropIn
import Braintree

Answer 2

You implement BTDropInViewControllerDelegate to obtain the payment method nonce on success, and dismiss the Drop In UI in either case:
- (void)dropInViewController:(__unused BTDropInViewController *)viewController didSucceedWithPaymentMethod:(BTPaymentMethod *)paymentMethod {
[self postNonceToServer:paymentMethod.nonce]; // Send payment method nonce to your server
[self dismissViewControllerAnimated:YES completion:nil];
}
- (void)dropInViewControllerDidCancel:(__unused BTDropInViewController *)viewController {
[self dismissViewControllerAnimated:YES completion:nil];
}
Send payment method nonce to server
- (void)postNonceToServer:(NSString *)paymentMethodNonce {
// Update URL with your server
NSURL *paymentURL = [NSURL URLWithString:#"https://your-server.example.com/checkout"];
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:paymentURL];
request.HTTPBody = [[NSString stringWithFormat:#"payment_method_nonce=%#", paymentMethodNonce] dataUsingEncoding:NSUTF8StringEncoding];
request.HTTPMethod = #"POST";
[[[NSURLSession sharedSession] dataTaskWithRequest:request completionHandler:^(NSData * _Nullable data, NSURLResponse * _Nullable response, NSError * _Nullable error) {
// TODO: Handle success and failure
}] resume];
}

Answer 3

BTDropInRequest *request = [[BTDropInRequest alloc] init];
request.amount = #"10";
BTDropInController *dropIn = [[BTDropInController alloc] initWithAuthorization:clientTokenOrTokenizationKey request:request handler:^(BTDropInController * _Nonnull controller, BTDropInResult * _Nullable result, NSError * _Nullable error) {
if (error != nil) {
NSLog(#"ERROR");
} else if (result.cancelled) {
NSLog(#"CANCELLED");
} else {
BTPaymentMethodNonce *selectedNonce = result.paymentMethod;
[self postNonceToServer:self.selectedNonce.nonce];
}
}];
[self presentViewController:dropIn animated:YES completion:nil];