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iap-apple

📦🚀 Integration of Apples  validation service for App Store Receipts, written in Typescript, available for NodeJS environments.

A NodeJS module for in-app purchase (in-app billing) and subscription for Apple.

Overview 🧐

Create a Typescript package for validation of App Store Receipts.
This package is meant to be used server side to validate receipts from the App Store by talking to Apples servers.

Installation 📦

npm

npm install iap-apple

yarn

yarn add iap-apple

API documentation 📚

verify 🧪

API used to verify receipt data received during an App Store purchase. Requires appSharedSecret to be passed as part of the configuration. See example for more details.

import { verify, IAPAppleError, IVerifyReceiptResponseBody } from 'iap-apple';

async function verifyAppleReceipt(receipt: string) {
    try {
        const verifyReceiptResponse = await verify(receipt, { 
            /*
              Your app's shared secret, which is a hexadecimal string. For more information about the shared secret.
              https://help.apple.com/app-store-connect/#/devf341c0f01
            */
            appSharedSecret, 
            /*
              To exclude old transaction, set this to true. 
              Default is false.
            */
            excludeOldTransactions: false,
            /*
              Force validation against Apple Sandbox only.
              In effect this means that the validation against Apple Production endpoint won't be used.
              Default is false.
            */
            test: false,
            /* 
              Optional can be omitted, pass logger object if you want to debug.
              Default is null object.
            */
            logger: console,
        });
        console.log('verifyReceiptResponse', verifyReceiptResponse);
    } catch(error) {
        const iapAppleError = error as IAPAppleError;
        const rejectionMessage: string = error.rejectionMessage;
        const errorData: IVerifyReceiptResponseBody | null = error.data;
        console.error('Error happened', rejectionMessage);
        console.error('Details', errorData);
    }
}

isVerifiedReceipt 🧪

API used to verify if response returned by verify is verified. Requires the output of verify to be passed. See example for more details.

import { verify, isVerifiedReceipt, IIAPAppleConfig } from 'iap-apple';

async function isVerifiedAppleReceipt(receipt: string, config: IIAPAppleConfig) {
    try {
        const verifyReceiptResponse = await verify(receipt, config);
        const isVerifiedReceipt = isVerifiedReceipt(verifyReceiptResponse);
    } catch(error) {
        const iapAppleError = error as IAPAppleError;
        const rejectionMessage: string = error.rejectionMessage;
        const errorData: IVerifyReceiptResponseBody | null = error.data;
        console.error('Error happened', rejectionMessage);
        console.error('Details', errorData);
    }
}

getPurchasedItems 🧪

API used to get an array of PurchasedItem objects from the Apple App Store response, sort by their purchase date descending. Usually what we are interested in is the first item of the purchase. Requires the output of verify to be passed. See example for more details.

import { verify, getPurchasedItems, IIAPAppleConfig } from 'iap-apple';

async function isVerifiedAppleReceipt(receipt: string, config: IIAPAppleConfig) {
    try {
        const verifyReceiptResponse = await verify(receipt, config);
        const purchasedItems = getPurchasedItems(verifyReceiptResponse);
        const latestPurchase = purchasedItems[0];
    } catch(error) {
        const iapAppleError = error as IAPAppleError;
        const rejectionMessage: string = error.rejectionMessage;
        const errorData: IVerifyReceiptResponseBody | null = error.data;
        console.error('Error happened', rejectionMessage);
        console.error('Details', errorData);
    }
}

isPurchasedItemCanceled 🧪

API used to check if a purchased item is canceled. Requires the output of getPurchasedItems to be passed. See example for more details.

import { verify, getPurchasedItems, isPurchasedItemCanceled, IIAPAppleConfig } from 'iap-apple';

async function isVerifiedAppleReceipt(receipt: string, config: IIAPAppleConfig) {
    try {
        const verifyReceiptResponse = await verify(receipt, config);
        const purchasedItems = getPurchasedItems(verifyReceiptResponse);
        const latestPurchase = purchasedItems[0];
        const isCanceled = isPurchasedItemCanceled(latestPurchase);
    } catch(error) {
        const iapAppleError = error as IAPAppleError;
        const rejectionMessage: string = error.rejectionMessage;
        const errorData: IVerifyReceiptResponseBody | null = error.data;
        console.error('Error happened', rejectionMessage);
        console.error('Details', errorData);
    }
}

isPurchasedItemExpired 🧪

API used to check if a purchased item is expired. Requires the output of getPurchasedItems to be passed. See example for more details.

import { verify, getPurchasedItems, isPurchasedItemExpired, IIAPAppleConfig } from 'iap-apple';

async function isVerifiedAppleReceipt(receipt: string, config: IIAPAppleConfig) {
    try {
        const verifyReceiptResponse = await verify(receipt, config);
        const purchasedItems = getPurchasedItems(verifyReceiptResponse);
        const latestPurchase = purchasedItems[0];
        const isExpired = isPurchasedItemExpired(latestPurchase);
    } catch(error) {
        const iapAppleError = error as IAPAppleError;
        const rejectionMessage: string = error.rejectionMessage;
        const errorData: IVerifyReceiptResponseBody | null = error.data;
        console.error('Error happened', rejectionMessage);
        console.error('Details', errorData);
    }
}