index.d.ts

declare module "@class101/react-native-in-app-purchase" {
  interface Product {
    productId: string;
    price: string;
    currency: string;
    title: string;
    description: string;
    iconUrl: string;
  }

  interface Purchase {
    productIds: string[];
    transactionId: string;
    transactionDate: string;
    receipt: string;
    purchaseToken: string;
  }

  interface IAPError {
    type: {
      FETCH_PRODUCTS: "FETCH_PRODUCTS";
      PURCHASE: "PURCHASE";
      CONNECTION: "CONNECTION";
    };
    code?: number;
    message: string;
  }

  function onFetchProducts(listener: (products: Product[]) => void): void;

  function onPurchase(listener: (purchase: Purchase) => void): void;

  function onError(listener: (error: IAPError) => void): void;

  function clear(): void;

  function configure(): Promise<boolean>;

  function fetchProducts(productIds: string[]): void;

  function purchase(productId: string, originalPurchaseToken?: string): void;

  function restore(): void;

  function finalize(purchase: Purchase, isConsumable: boolean): Promise<void>;

  function flush(): Promise<Purchase[]>;
}