Added config endpoint to Member API (#10467)

no-issue

* Added getPublicConfig method to stripe payment processor
* Added getPublicConfig method to subscriptions service
* Added initial config endpoint for members api
* Added getConfig method to members gateway

core/server/lib/members/index.js

@@ -75,6 +75,17 @@ module.exports = function MembersApi({
             .catch(handleError(403, res));
     });
 
+    apiRouter.get('/config', (req, res) => {
+        subscriptions.getAdapters()
+            .then((adapters) => {
+                return Promise.all(adapters.map((adapter) => {
+                    return subscriptions.getPublicConfig(adapter);
+                }));
+            })
+            .then(data => res.json(data))
+            .catch(handleError(500, res));
+    });
+
     /* security */
     function ssoOriginCheck(req, res, next) {
         if (!req.data.origin || req.data.origin !== ssoOrigin) {

core/server/lib/members/static/gateway/bundle.js

@@ -150,6 +150,14 @@
         });
     });
 
+    addMethod('getConfig', function getConfig() {
+        return fetch(`${membersApi}/config`, {
+            method: 'GET'
+        }).then((res) => {
+            return res.json();
+        });
+    });
+
     window.addEventListener('storage', function (event) {
         if (event.storageArea !== storage) {
             return;

core/server/lib/members/subscriptions/index.js

@@ -39,6 +39,16 @@ module.exports = class PaymentProcessorService {
         });
     }
 
+    getPublicConfig(adapter) {
+        if (!adapter) {
+            return Promise.reject(new Error('getPublicConfig(adapter) requires an adapter'));
+        }
+
+        return this._ready.then(() => {
+            return this._processors[adapter].getPublicConfig();
+        });
+    }
+
     createSubscription(member, metadata) {
         if (!metadata.adapter) {
             return Promise.reject(new Error('createSubscription(member, { adapter }) requires an adapter'));

core/server/lib/members/subscriptions/payment-processors/stripe/index.js

@@ -15,6 +15,7 @@ module.exports = class StripePaymentProcessor {
                 this._stripe = stripe;
                 this._product = product;
                 this._plans = plans;
+                this._public_token = config.public_token;
                 return {
                     product,
                     plans
@@ -35,6 +36,25 @@ module.exports = class StripePaymentProcessor {
         });
     }
 
+    getPublicConfig() {
+        if (!this._plans) {
+            throw new Error('StripePaymentProcessor must be configured()');
+        }
+
+        return this._ready.then(() => {
+            return {
+                adapter: 'stripe',
+                config: {
+                    public_token: this._public_token,
+                    plans: this._plans.map(({id, currency, amount, interval, nickname}) => ({
+                        id, currency, amount, interval,
+                        name: nickname
+                    }))
+                }
+            };
+        });
+    }
+
     createSubscription(member, metadata) {
         if (!this._stripe) {
             throw new Error('StripePaymentProcessor must be configured()');