Google Billing payment request inside TWA returning error Unable to download payment manifest "https://play.google.com/billing" on older Androids

Question

I use Bubblewrap to turn my PWA into a TWA app on Android and have Google Billing properly enabled. Everything works fine on my Android 11 device, but when I open my app on devices that run Android 6, the PaymentRequest.canMakePayment() method returns false with the error message:

Unable to download payment manifest "https://play.google.com/billing".

Since I can't find any documentation online about how Google Play Billing works with the web Payment Request API, I have no information about the requirements to make it work. I'm also pretty sure that it used to work and I managed to make payments on older Android devices.

Any help would be appreciated!

This is my code:

const getBillingService = async () => {
  if (window.PaymentRequest !== undefined) {
    const dummyMethods = [
      {
        supportedMethods: "https://play.google.com/billing",
      },
    ];
    const dummyDetails = {
      total: {
        label: `Total`,
        amount: { currency: `USD`, value: `0` },
      },
    };
    const dummyRequest = new PaymentRequest(dummyMethods, dummyDetails);
    const possible = await dummyRequest.canMakePayment();
    //true inside my app on newer Android versions, false in older ones
    //with the error Unable to download payment manifest "https://play.google.com/billing".
  }
};

All the requirements to make the Google Play Billing API work are satisfied as far as I know: https context, app downloaded from the Play Store... and it does work on newer devices.

Google Billing payment request inside TWA returning error Unable to download payment manifest "https://play.google.com/billing" on older Androids

0 Answers0