createPaymentIntent.m

// createPaymentIntent
RCT_EXPORT_METHOD(createSetupIntent:(NSString*)intent whitCc:(NSString*)cc withMo:(NSString*)month withYe:(NSString*)year withCvc:(NSString*)cvc withEmail:(NSString*)email withName:(NSString*)name callback:(RCTResponseSenderBlock)callback ){
  // convert the month and year values to NSNumber
  NSNumber *num1 = @([month intValue]);
  NSNumber *num2 = @([year intValue]);
  
  STPPaymentMethodCardParams *cardParams = [STPPaymentMethodCardParams new];
  cardParams.number = cc;
  cardParams.expMonth = num1;
  cardParams.expYear = num2;
  cardParams.cvc = cvc;
  
  STPPaymentMethodBillingDetails *billingDetails = [STPPaymentMethodBillingDetails new];
  // optional: add info to your user
  billingDetails.email = email;
  billingDetails.name = name;
  
  // Fill in card, billing details
  STPPaymentMethodParams *paymentMethodParams = [STPPaymentMethodParams paramsWithCard:cardParams billingDetails:billingDetails metadata:nil];
  [[STPAPIClient sharedClient] createPaymentMethodWithParams:paymentMethodParams completion:^(STPPaymentMethod *paymentMethod, NSError *error) {
    
    STPSetupIntentConfirmParams *setupIntentParams = [[STPSetupIntentConfirmParams alloc] initWithClientSecret:intent];
    setupIntentParams.paymentMethodID = paymentMethod.stripeId;
    MyCheckoutViewController *authContext = [[MyCheckoutViewController alloc] init];
    
    [[STPPaymentHandler sharedHandler] confirmSetupIntent:setupIntentParams withAuthenticationContext:authContext completion:^(STPPaymentHandlerActionStatus status, STPSetupIntent * setupIntent, NSError * error) {
         switch (status) {
             case STPPaymentHandlerActionStatusSucceeded:
             // Setup succeeded and returns a paymentIntent to use when creating your customer in the back-end
              callback(@[[NSNull null], @"SUCCESS", paymentMethod.stripeId ]);
              break;
             case STPPaymentHandlerActionStatusCanceled:
             // Handle cancel
              callback(@[[NSNull null], @"CANCEL" ]);
              break;
             case STPPaymentHandlerActionStatusFailed:
             // Handle error
              NSLog(@"ERROR: %@", error);
              callback(@[[NSNull null], @"ERROR" ]);
              break;
         }
       }];
  }];
}

YES, exactly what I did!

Thank you we agree about that, thank you!