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Turn addTransactionListener into transaction-updated event

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Cheng Zhao 2018-01-10 16:55:49 +09:00
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docs/api/in-app-purchase.md
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# inAppPurchase _macOS_
> In-App Purchase on Mac App Store.
> In-app purchases on Mac App Store.
Your application should add a listener before to purchase a product. If there are no listener attached to the queue, the payment queue does not synchronize its list of pending transactions with the Apple App Store.
Process: [Main](../glossary.md#main-process)
## Events
The `inAppPurchase` module emits the following events:
### Event: 'transaction-updated'
Emitted when a transaction has been updated.
Returns:
* `event` Event
* `payment` Object
* `productIdentifier` String
* `quantity` Integer
* `transaction` Object
* `transactionIdentifier` String
* `transactionDate` String
* `originalTransactionIdentifier` String
* `transactionState` String - The transaction sate (`"SKPaymentTransactionStatePurchasing"`, `"SKPaymentTransactionStatePurchased"`, `"SKPaymentTransactionStateFailed"`, `"SKPaymentTransactionStateRestored"`, or `"SKPaymentTransactionStateDeferred"`)
* `errorCode` Integer
* `errorMessage` String
## Methods
The `inAppPurchase` module has the following methods:
### `inAppPurchase.addTransactionListener(listener)`
* `listener` Function - Called when transactions are updated by the payment queue.
* `payment` Object
* `productIdentifier` String
* `quantity` Integer
* `transaction` Object
* `transactionIdentifier` String
* `transactionDate` String
* `originalTransactionIdentifier` String
* `transactionState` String - The transaction sate (`"SKPaymentTransactionStatePurchasing"`, `"SKPaymentTransactionStatePurchased"`, `"SKPaymentTransactionStateFailed"`, `"SKPaymentTransactionStateRestored"`, or `"SKPaymentTransactionStateDeferred"`)
* `errorCode` Integer
* `errorMessage` String
Add a listener to transactions.
### `inAppPurchase.purchaseProduct(productID, quantity, callback)`
* `productID` String - The id of the product to purchase. (the id of `com.example.app.product1` is `product1`).