React Native 应用内购TypeError错误：正确处理商品ID参数

import { Platform } from 'react-native';
import * as RNIap from 'react-native-iap'; // 假设你导入的库名为 RNIap

/**
 * 根据平台构建购买请求所需的参数对象
 * @param {string} productId 要购买的商品ID
 * @returns {object} 购买请求参数对象
 */
const getPurchaseParams = (productId) => {
  if (Platform.OS === 'ios') {
    return { sku: productId };
  } else { // Android
    return { skus: [productId] };
  }
};

// 或者更简洁地直接在调用处判断
// let purchaseParams = Platform.OS === "ios" ? { sku: prod_id } : { skus: [prod_id] };

import React, { useState, useEffect } from 'react';
import { Platform } from 'react-native';
import * as Iap from 'react-native-iap'; // 假设你导入的库名为 Iap

// 假设 selectedPlan 和 Sentry 已经定义
// const selectedPlan = { google_pay_id: 'weekly_subscription_3' };
// const Sentry = { captureMessage: (msg, err) => console.log(msg, err) };

function SubscriptionComponent({ selectedPlan }) {
  const [googleSub, setGoogleSub] = useState(null);
  const [isLoading, setIsLoading] = useState(false);

  useEffect(() => {
    (async () => {
      try {
        // 确保 selectedPlan.google_pay_id 存在且有效
        if (!selectedPlan || !selectedPlan.google_pay_id) {
          console.warn('selectedPlan or google_pay_id is missing.');
          return;
        }
        const subs = await Iap.getSubscriptions([selectedPlan.google_pay_id]);
        if (subs && subs.length > 0) {
          console.log('Subscriptions response: ', subs);
          setGoogleSub(subs[0]);
        }
      } catch (error) {
        Sentry.captureMessage('Failed to get Google subscriptions', error);
        console.error(error);
      }
    })();
  }, [selectedPlan]);

  const requestGoogleSubscription = async () => {
    try {
      setIsLoading(true);
      console.log('requestGoogleSubscription: googleSub', googleSub);

      if (googleSub && typeof googleSub === 'object' && googleSub.productId) {
        console.log('requestGoogleSubscription: initiating purchase');

        // *** 核心修改部分 ***
        // 根据平台构建正确的参数对象
        let purchaseParams;
        if (Platform.OS === 'ios') {
          purchaseParams = { sku: googleSub.productId };
        } else { // Android
          purchaseParams = { skus: [googleSub.productId] };
        }

        // 使用构建好的参数对象调用 requestPurchase 或 requestSubscription
        // 注意：根据你的 RNIAP 版本和具体需求，可能是 requestPurchase 或 requestSubscription
        // 这里使用 requestPurchase 作为通用示例，与答案保持一致
        const purchase = await Iap.requestPurchase(purchaseParams);
        console.log('Purchase successful: ', purchase);
        // 进一步处理购买成功后的逻辑，如验证收据等
      } else {
        console.warn('No valid Google subscription details available to initiate purchase');
      }
    } catch (error) {
      Sentry.captureMessage('Failed Google subscription', error);
      console.error('Purchase Error:', error); // 更具体的错误日志
    } finally {
      setIsLoading(false);
    }
  };

  // 假设这里有一个按钮来触发 requestGoogleSubscription
  return (
    <div>
      {/* ... 其他UI元素 ... */}
      <button onClick={requestGoogleSubscription} disabled={isLoading}>
        {isLoading ? '购买中...' : '购买订阅'}
      </button>
    </div>
  );
}

export default SubscriptionComponent;