کد تخفیف و لینک پرداخت

import com.inappify.sdk.*

suspend fun discountedLinks(client: InappifyV2Client, code: String) {
    when (val result = client.getDiscountedPaymentLinks(code)) {
        is InappifyResult.Failure -> { /* Network/server failure, not invalid code. */ }
        is InappifyResult.Success -> {
            if (result.data.isValid != true) return
            val links = result.data.paymentLinks
            // Open only a destination accepted by client.isPaymentUrlAllowed(url).
        }
    }
}

import 'package:inappify_sdk/inappify_sdk.dart';

Future<Map<String, Object?>> discountAlternatives(
  String code, String selectedOfferingId,
) async {
  // Native links, or Web current offering:
  final current = await InappifySdk.getDiscountedPaymentLinksResult(code);
  // Alternative for a selected Web offering:
  final selected = await InappifySdk.getDiscountedPaymentLinksResult(
    code, offeringIdentifier: selectedOfferingId,
  );
  if (!selected.isSuccess || selected.data?.isValid != true) return {};
  return {
    'current': current.data,
    'links': selected.data?.paymentLinks,
    'discountedOffering': selected.data?.offering,
  };
}

import type { InAppify } from '@inappifylabs/web-sdk';

export async function discountedPayment(
  client: InAppify,
  code: string,
  savedAttemptId: string,
) {
  const selected = await client.getCurrentOffering('upgrade');
  if (!selected)
    return null;
  const validated = await client.validateDiscountCode(code, selected.identifier);
  if (!validated.discount.isValid)
    return null;
  const packageItem = validated.offering.packages[0];
  if (!packageItem)
    return null;
  return client.purchase({
    package: packageItem,
    discountCode: code,
    idempotencyKey: savedAttemptId,
  }, { redirect: false });
}