function buy_movie()

movie_page.js

async function buy_movie() {
    alert("buy_movie");
    try {
        let message = await HMSInAppPurchases.createPurchaseIntent({
            priceType: PRICETYPE.CONSUMABLE,
            productId: "test_movie_item_2",
            developerPayload: "HMSCoreDeveloper",
        });

        console.log(JSON.stringify(message, ["returnCode", "errMsg", "inAppPurchaseData", "inAppDataSignature", "signatureAlgorithm"]));
        if (message.returnCode === 0) {// if successful
            createPurchasedProductOnList(product.productId, message.inAppPurchaseData, productType)
        } else {
            alert(JSON.stringify(message, null, 4))
            console.log('Purchase was not successful.')
        }
    } catch (err) {
        defaultErrorHandler(err);
    }

}