In-App Purchases (macOS)

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

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

// Check each transaction.
  transactions.forEach(function(transaction){
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 informations.')
return
}

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

// Ask the user which product he/she wants 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.')
})
})