Refactored webhook creation (#175)

no-issue

* Refactored model dependencies
  This groups all of the model depenencies into a single models object,
  and renames the models with more concise identifiers

* Fixed spacing
* Added webhook support to metadata
* Refactored stripe configure to have better logging
* Refactored webhook creation to reuse existing webhook
* Installed @types/stripe

ghost/members-api/index.js

@@ -27,9 +27,12 @@ module.exports = function MembersApi({
         getHTML,
         getSubject
     },
-    memberStripeCustomerModel,
-    stripeCustomerSubscriptionModel,
-    memberModel,
+    models: {
+        StripeWebhook,
+        StripeCustomer,
+        StripeCustomerSubscription,
+        Member
+    },
     logger
 }) {
     if (logger) {
@@ -37,10 +40,14 @@ module.exports = function MembersApi({
     }
 
     const {encodeIdentityToken, decodeToken} = Tokens({privateKey, publicKey, issuer});
-    const metadata = Metadata({memberStripeCustomerModel, stripeCustomerSubscriptionModel});
+    const metadata = Metadata({
+        StripeWebhook,
+        StripeCustomer,
+        StripeCustomerSubscription
+    });
 
     async function hasActiveStripeSubscriptions() {
-        const firstActiveSubscription = await stripeCustomerSubscriptionModel.findOne({
+        const firstActiveSubscription = await StripeCustomerSubscription.findOne({
             status: 'active'
         });
 
@@ -48,7 +55,7 @@ module.exports = function MembersApi({
             return true;
         }
 
-        const firstTrialingSubscription = await stripeCustomerSubscriptionModel.findOne({
+        const firstTrialingSubscription = await StripeCustomerSubscription.findOne({
             status: 'trialing'
         });
 
@@ -111,7 +118,7 @@ module.exports = function MembersApi({
 
     const users = Users({
         stripe,
-        memberModel
+        Member
     });
 
     async function getMemberDataFromMagicLinkToken(token) {

ghost/members-api/lib/metadata.js

@@ -1,13 +1,15 @@
-let MemberStripeCustomer;
-let StripeCustomerSubscription;
-
+module.exports = function ({
+    StripeWebhook,
+    StripeCustomer,
+    StripeCustomerSubscription
+}) {
     async function setMetadata(module, metadata) {
         if (module !== 'stripe') {
             return;
         }
 
         if (metadata.customer) {
-        await MemberStripeCustomer.upsert(metadata.customer, {
+            await StripeCustomer.upsert(metadata.customer, {
                 customer_id: metadata.customer.customer_id
             });
         }
@@ -18,6 +20,12 @@ async function setMetadata(module, metadata) {
             });
         }
 
+        if (metadata.webhook) {
+            await StripeWebhook.upsert(metadata.webhook, {
+                webhook_id: metadata.webhook.webhook_id
+            });
+        }
+
         return;
     }
 
@@ -26,7 +34,7 @@ async function getMetadata(module, member) {
             return;
         }
 
-    const customers = (await MemberStripeCustomer.findAll({
+        const customers = (await StripeCustomer.findAll({
             filter: `member_id:${member.id}`
         })).toJSON();
 
@@ -43,13 +51,6 @@ async function getMetadata(module, member) {
         };
     }
 
-module.exports = function ({
-    memberStripeCustomerModel,
-    stripeCustomerSubscriptionModel
-}) {
-    MemberStripeCustomer = memberStripeCustomerModel;
-    StripeCustomerSubscription = stripeCustomerSubscriptionModel;
-
     return {
         setMetadata,
         getMetadata

ghost/members-api/lib/stripe/index.js

@@ -1,6 +1,6 @@
 const debug = require('ghost-ignition').debug('stripe');
 const _ = require('lodash');
-const {retrieve, list, create, update, del} = require('./api/stripeRequests');
+const {retrieve, create, update, del} = require('./api/stripeRequests');
 const api = require('./api');
 
 const STRIPE_API_VERSION = '2019-09-09';
@@ -39,33 +39,41 @@ module.exports = class StripePaymentProcessor {
         this._checkoutCancelUrl = config.checkoutCancelUrl;
         this._billingSuccessUrl = config.billingSuccessUrl;
         this._billingCancelUrl = config.billingCancelUrl;
-        this._webhookHandlerUrl = config.webhookHandlerUrl;
 
         try {
             this._product = await api.products.ensure(this._stripe, config.product);
+        } catch (err) {
+            this.logging.error('There was an error creating the Stripe Product');
+            this.logging.error(err);
+            return this._rejectReady(err);
+        }
 
+        /**
+         * @type Array<import('stripe').plans.IPlan>
+         */
         this._plans = [];
         for (const planSpec of config.plans) {
+            try {
                 const plan = await api.plans.ensure(this._stripe, planSpec, this._product);
                 this._plans.push(plan);
+            } catch (err) {
+                this.logging.error('There was an error creating the Stripe Plan');
+                this.logging.error(err);
+                return this._rejectReady(err);
+            }
         }
 
-            const webhooks = await list(this._stripe, 'webhookEndpoints', {
-                limit: 100
+        if (process.env.WEBHOOK_SECRET) {
+            this.logging.warn(`Skipping Stripe webhook creation and validation, using WEBHOOK_SECRET environment variable`);
+            this._webhookSecret = process.env.WEBHOOK_SECRET;
+            return this._resolveReady({
+                product: this._product,
+                plans: this._plans
             });
-
-            const webhookToDelete = webhooks.data.find((webhook) => {
-                return webhook.url === this._webhookHandlerUrl;
-            });
-
-            if (webhookToDelete) {
-                await del(this._stripe, 'webhookEndpoints', webhookToDelete.id);
         }
 
-            try {
-                const webhook = await create(this._stripe, 'webhookEndpoints', {
-                    url: this._webhookHandlerUrl,
-                    api_version: STRIPE_API_VERSION,
+        const webhookConfig = {
+            url: config.webhookHandlerUrl,
             enabled_events: [
                 'checkout.session.completed',
                 'customer.subscription.deleted',
@@ -73,15 +81,67 @@ module.exports = class StripePaymentProcessor {
                 'invoice.payment_succeeded',
                 'invoice.payment_failed'
             ]
-                });
-                this._webhookSecret = process.env.WEBHOOK_SECRET || webhook.secret;
+        };
+
+        const setupWebhook = async (id, secret, opts = {}) => {
+            if (!id || !secret || opts.forceCreate) {
+                if (id && !opts.skipDelete) {
+                    try {
+                        this.logging.info(`Deleting Stripe webhook ${id}`);
+                        await del(this._stripe, 'webhookEndpoints', id);
                     } catch (err) {
-                this._webhookSecret = process.env.WEBHOOK_SECRET;
-                this.logging.warn(err);
+                        this.logging.error(`Unable to delete Stripe webhook with id: ${id}`);
+                        this.logging.error(err);
                     }
-            debug(`Webhook secret set to ${this._webhookSecret}`);
+                }
+                try {
+                    this.logging.info(`Creating Stripe webhook with url: ${webhookConfig.url}, version: ${STRIPE_API_VERSION}, events: ${webhookConfig.enabled_events.join(', ')}`);
+                    const webhook = await create(this._stripe, 'webhookEndpoints', Object.assign({}, webhookConfig, {
+                        api_version: STRIPE_API_VERSION
+                    }));
+                    return {
+                        id: webhook.id,
+                        secret: webhook.secret
+                    };
+                } catch (err) {
+                    this.logging.error('Failed to create Stripe webhook. For local development please see https://ghost.org/docs/members/webhooks/#stripe-webhooks');
+                    this.logging.error(err);
+                    throw err;
+                }
+            } else {
+                try {
+                    this.logging.info(`Updating Stripe webhook ${id} with url: ${webhookConfig.url}, events: ${webhookConfig.enabled_events.join(', ')}`);
+                    const updatedWebhook = await update(this._stripe, 'webhookEndpoints', id, webhookConfig);
+
+                    if (updatedWebhook.api_version !== STRIPE_API_VERSION) {
+                        throw new Error(`Webhook ${id} has api_version ${updatedWebhook.api_version}, expected ${STRIPE_API_VERSION}`);
+                    }
+
+                    return {
+                        id,
+                        secret
+                    };
+                } catch (err) {
+                    this.logging.error(`Unable to update Stripe webhook ${id}`);
+                    this.logging.error(err);
+                    if (err.code === 'resource_missing') {
+                        return setupWebhook(id, secret, {skipDelete: true, forceCreate: true});
+                    }
+                    return setupWebhook(id, secret, {skipDelete: false, forceCreate: true});
+                }
+            }
+        };
+
+        try {
+            const webhook = await setupWebhook(config.webhook.id, config.webhook.secret);
+            await this.storage.set({
+                webhook: {
+                    webhook_id: webhook.id,
+                    secret: webhook.secret
+                }
+            });
+            this._webhookSecret = webhook.secret;
         } catch (err) {
-            debug(`Error configuring ${err.message}`);
             return this._rejectReady(err);
         }
 

ghost/members-api/lib/users.js

@@ -2,8 +2,10 @@ const _ = require('lodash');
 const debug = require('ghost-ignition').debug('users');
 const common = require('./common');
 
-let Member;
-
+module.exports = function ({
+    stripe,
+    Member
+}) {
     async function createMember({email, name, note, labels, geolocation}) {
         const model = await Member.add({
             email,
@@ -51,12 +53,6 @@ function listMembers(options) {
         });
     }
 
-module.exports = function ({
-    stripe,
-    memberModel
-}) {
-    Member = memberModel;
-
     async function getStripeSubscriptions(member) {
         if (!stripe) {
             return [];

ghost/members-api/package.json

@@ -17,6 +17,7 @@
     "gateway"
   ],
   "devDependencies": {
+    "@types/stripe": "^7.13.24",
     "jsdom": "15.2.1",
     "mocha": "6.2.2",
     "nock": "12.0.3",