In-app billing consume a purchase

MainActivity.java

ConsumeResponseListener listener = new ConsumeResponseListener() {
    @Override
    public void onConsumeResponse(@BillingResponse int responseCode, String outToken) {
            if (responseCode == BillingResponse.OK) {
                // Handle the success of the consume operation.
                // For example, increase the number of coins inside the user's basket.
    }
};
mBillingClient.consumeAsync(purchaseToken, listener);