Wired up additional payment types with labs flag

ref ENG-812
ref https://linear.app/tryghost/issue/ENG-812

ghost/core/core/server/services/stripe/service.js

@@ -11,6 +11,7 @@ const {getConfig} = require('./config');
 const settingsHelpers = require('../settings-helpers');
 const donationService = require('../donations');
 const staffService = require('../staff');
+const labs = require('../../../shared/labs');
 
 async function configureApi() {
     const cfg = getConfig({settingsHelpers, config, urlUtils});
@@ -30,6 +31,7 @@ const debouncedConfigureApi = _.debounce(() => {
 }, 600);
 
 module.exports = new StripeService({
+    labs,
     membersService,
     models: _.pick(models, [
         'Product',

ghost/stripe/lib/StripeAPI.js

@@ -41,14 +41,19 @@ module.exports = class StripeAPI {
     /**
      * StripeAPI
      */
-    constructor() {
+    constructor(deps) {
         /** @type {Stripe} */
         this._stripe = null;
         this._configured = false;
+        this.labs = deps.labs;
     }
 
     get PAYMENT_METHOD_TYPES() {
-        return ['card'];
+        if (this.labs.isSet('additionalPaymentMethods')) {
+            return undefined;
+        } else {
+            return ['card'];
+        }
     }
 
     get configured() {

ghost/stripe/lib/StripeService.js

@@ -7,13 +7,14 @@ const {StripeLiveEnabledEvent, StripeLiveDisabledEvent} = require('./events');
 
 module.exports = class StripeService {
     constructor({
+        labs,
         membersService,
         donationService,
         staffService,
         StripeWebhook,
         models
     }) {
-        const api = new StripeAPI();
+        const api = new StripeAPI({labs});
         const webhookManager = new WebhookManager({
             StripeWebhook,
             api

ghost/stripe/test/unit/lib/StripeAPI.test.js

@@ -2,12 +2,17 @@ const sinon = require('sinon');
 const should = require('should');
 const rewire = require('rewire');
 const StripeAPI = rewire('../../../lib/StripeAPI');
-const api = new StripeAPI();
 
 describe('StripeAPI', function () {
     const mockCustomerEmail = 'foo@example.com';
     const mockCustomerId = 'cust_mock_123456';
     const mockCustomerName = 'Example Customer';
+    let mockLabs = {
+        isSet() {
+            return false;
+        }
+    };
+    const api = new StripeAPI({labs: mockLabs});
 
     let mockStripe;
 
@@ -20,6 +25,7 @@ describe('StripeAPI', function () {
                     }
                 }
             };
+            sinon.stub(mockLabs, 'isSet');
             const mockStripeConstructor = sinon.stub().returns(mockStripe);
             StripeAPI.__set__('Stripe', mockStripeConstructor);
             api.configure({
@@ -35,6 +41,19 @@ describe('StripeAPI', function () {
             sinon.restore();
         });
 
+        it('Sends card as payment method if labs flag not enabled', async function () {
+            await api.createCheckoutSession('priceId', null, {});
+
+            should.deepEqual(mockStripe.checkout.sessions.create.firstCall.firstArg.payment_method_types, ['card']);
+        });
+
+        it('Sends no payment methods if labs flag is enabled', async function () {
+            mockLabs.isSet.withArgs('additionalPaymentMethods').returns(true);
+            await api.createCheckoutSession('priceId', null, {});
+
+            should.deepEqual(mockStripe.checkout.sessions.create.firstCall.firstArg.payment_method_types, undefined);
+        });
+
         it('sends success_url and cancel_url', async function () {
             await api.createCheckoutSession('priceId', null, {});