應用程式內購買

準備工作

付費應用程式協議

如果您還沒做過，您需要在 iTunes Connect 中簽署「付費應用程式協議」並設定您的銀行和稅務資訊。

iTunes Connect 開發人員幫助：協議、稅務和銀行業務概述

建立您的應用程式內購買

接著，您需要在 iTunes Connect 中設定您的應用程式內購買，並包含詳細資訊，例如名稱、定價和描述，以突顯應用程式內購買的功能和特性。

iTunes Connect 開發人員幫助：建立應用程式內購買

變更 CFBundleIdentifier

若要在 Electron 中測試開發中的應用程式內購買，您必須變更 node_modules/electron/dist/Electron.app/Contents/Info.plist 中的 CFBundleIdentifier。您必須將 com.github.electron 替換為您使用 iTunes Connect 建立的應用程式的套件識別碼。

<key>CFBundleIdentifier</key>
<string>com.example.app</string>

程式碼範例

以下範例顯示如何在 Electron 中使用應用程式內購買。您必須將產品 ID 替換為使用 iTunes Connect 建立的產品的識別碼 (com.example.app.product1 的識別碼是 product1)。請注意，您必須盡快在您的應用程式中監聽 transactions-updated 事件。

// Main process
const { inAppPurchase } = require('electron')
const PRODUCT_IDS = ['id1', 'id2']

// Listen for transactions as soon as possible.
inAppPurchase.on('transactions-updated', (event, transactions) => {
  if (!Array.isArray(transactions)) {
    return
  }

  // Check each transaction.
  for (const transaction of transactions) {
    const payment = transaction.payment

    switch (transaction.transactionState) {
      case 'purchasing':
        console.log(`Purchasing ${payment.productIdentifier}...`)
        break

      case 'purchased': {
        console.log(`${payment.productIdentifier} purchased.`)

        // Get the receipt url.
        const receiptURL = inAppPurchase.getReceiptURL()

        console.log(`Receipt URL: ${receiptURL}`)

        // Submit the receipt file to the server and check if it is valid.
        // @see https://developer.apple.com/library/content/releasenotes/General/ValidateAppStoreReceipt/Chapters/ValidateRemotely.html
        // ...
        // If the receipt is valid, the product is purchased
        // ...

        // Finish the transaction.
        inAppPurchase.finishTransactionByDate(transaction.transactionDate)

        break
      }

      case 'failed':

        console.log(`Failed to purchase ${payment.productIdentifier}.`)

        // Finish the transaction.
        inAppPurchase.finishTransactionByDate(transaction.transactionDate)

        break
      case 'restored':

        console.log(`The purchase of ${payment.productIdentifier} has been restored.`)

        break
      case 'deferred':

        console.log(`The purchase of ${payment.productIdentifier} has been deferred.`)

        break
      default:
        break
    }
  }
})

// Check if the user is allowed to make in-app purchase.
if (!inAppPurchase.canMakePayments()) {
  console.log('The user is not allowed to make in-app purchase.')
}

// Retrieve and display the product descriptions.
inAppPurchase.getProducts(PRODUCT_IDS).then(products => {
  // Check the parameters.
  if (!Array.isArray(products) || products.length <= 0) {
    console.log('Unable to retrieve the product information.')
    return
  }

  // Display the name and price of each product.
  for (const product of products) {
    console.log(`The price of ${product.localizedTitle} is ${product.formattedPrice}.`)
  }

  // Ask the user which product they want to purchase.
  const selectedProduct = products[0]
  const selectedQuantity = 1

  // Purchase the selected product.
  inAppPurchase.purchaseProduct(selectedProduct.productIdentifier, selectedQuantity).then(isProductValid => {
    if (!isProductValid) {
      console.log('The product is not valid.')
      return
    }

    console.log('The payment has been added to the payment queue.')
  })
})