Ghost/ghost/core/test/utils/stripe-mocker.js
Fabien "egg" O'Carroll c0ca7b16f6 Added caching to TierRepository
refs https://github.com/TryGhost/Toolbox/issues/515

Tiers are very frequently queried and we want to reduce the number of DB calls
we're making. We can store the Tiers in-memory, using the existing in-memory
repository patterns, but still persisting writes the the database.

We also have to update our test helpers, because they were bypassing the
repository for writes, but using it for reads resulting in an invalid cache
2023-05-12 16:38:32 -04:00

417 lines
13 KiB
JavaScript

const DomainEvents = require('@tryghost/domain-events');
const nock = require('nock');
let members = {};
let stripeService = {};
let tiers = {};
let models = {};
const crypto = require('crypto');
/**
* The Stripe Mocker mimics an in memory version of the Stripe API. We can use it to quickly create new subscriptions and get a close to real world test environment with working webhooks etc.
* If you create a new subscription, it will automatically send the customer.subscription.created webhook. So you can test what happens.
*/
class StripeMocker {
customers = [];
subscriptions = [];
paymentMethods = [];
setupIntents = [];
coupons = [];
prices = [];
products = [];
nockInterceptors = [];
constructor(data = {}) {
this.customers = data.customers ?? [];
this.subscriptions = data.subscriptions ?? [];
this.paymentMethods = data.paymentMethods ?? [];
this.setupIntents = data.setupIntents ?? [];
this.coupons = data.coupons ?? [];
this.prices = data.prices ?? [];
this.products = data.products ?? [];
}
reset() {
this.customers = [];
this.subscriptions = [];
this.paymentMethods = [];
this.setupIntents = [];
this.coupons = [];
this.prices = [];
this.products = [];
// Fix for now, because of importing order breaking some things when they are not initialized
members = require('../../core/server/services/members');
stripeService = require('../../core/server/services/stripe');
tiers = require('../../core/server/services/tiers');
models = require('../../core/server/models');
}
#generateRandomId() {
return crypto.randomBytes(8).toString('hex');
}
createCustomer(overrides = {}) {
const customerId = `cus_${this.#generateRandomId()}`;
const stripeCustomer = {
id: customerId,
object: 'customer',
name: 'Test User',
email: customerId + '@example.com',
subscriptions: {
type: 'list',
data: []
},
...overrides
};
this.customers.push(stripeCustomer);
return stripeCustomer;
}
/**
*
* @param {*} tierSlug
* @param {'month' | 'year'} cadence
* @returns
*/
async getPriceForTier(tierSlug, cadence) {
const product = await models.Product.findOne({slug: tierSlug});
const tier = await tiers.api.read(product.id);
const payments = members.api.paymentsService;
const {id} = await payments.createPriceForTierCadence(tier, cadence);
return this.#getData(this.prices, id)[1];
}
/**
*
* @param {object} data
* @param {string} [data.name]
* @param {string} data.currency
* @param {number} data.monthly_price
* @param {number} data.yearly_price
* @returns
*/
async createTier({name, currency, monthly_price, yearly_price}) {
const result = await tiers.api.add({
name: name ?? ('Tier ' + this.#generateRandomId()),
type: 'paid',
currency: currency.toUpperCase(),
monthlyPrice: monthly_price,
yearlyPrice: yearly_price
});
return await models.Product.findOne({
id: result.id.toHexString()
});
}
async createTrialSubscription({customer, price, ...overrides}) {
return await this.createSubscription({
customer,
price,
status: 'trialing',
trial_start: Date.now() / 1000,
trial_end: (Date.now() + 1000 * 60 * 60 * 24 * 7) / 1000,
...overrides
});
}
async createIncompleteSubscription({customer, price, ...overrides}) {
return await this.createSubscription({
customer,
price,
status: 'incomplete',
...overrides
});
}
async updateSubscription({id, ...overrides}) {
const subscription = this.#postData(this.subscriptions, id, overrides, 'subscriptions')[1];
// Send update webhook
await this.sendWebhook({
type: 'customer.subscription.updated',
data: {
object: subscription
}
});
await DomainEvents.allSettled();
}
async createSubscription({customer, price, ...overrides}, options = {sendWebhook: true}) {
const subscriptionId = `sub_${this.#generateRandomId()}`;
const subscription = {
id: subscriptionId,
object: 'subscription',
cancel_at_period_end: false,
canceled_at: null,
current_period_end: (Date.now() + 1000 * 60 * 60 * 24 * 31) / 1000,
start_date: Math.floor(Date.now() / 1000),
status: 'active',
items: {
type: 'list',
data: [
{
price
}
]
},
customer: customer.id,
...overrides
};
this.subscriptions.push(subscription);
customer.subscriptions.data.push(subscription);
// Announce
if (options.sendWebhook) {
await this.sendWebhook({
type: 'checkout.session.completed',
data: {
object: {
mode: 'subscription',
customer: customer.id,
metadata: {
checkoutType: 'signup'
}
}
}
});
}
return subscription;
}
#getData(arr, id) {
const setupIntent = arr.find(c => c.id === id);
if (!setupIntent) {
return [404];
}
return [200, setupIntent];
}
#postData(arr, id, body, resource) {
const qs = require('qs');
let decoded = qs.parse(body, {
allowPrototypes: true,
decoder(value) {
// Convert numbers to numbers and bools to bools
if (/^(\d+|\d*\.\d+)$/.test(value)) {
return parseFloat(value);
}
let keywords = {
true: true,
false: false,
null: null
};
if (value in keywords) {
return keywords[value];
}
return decodeURIComponent(value);
}
});
if (resource === 'customers') {
if (!id) {
// Add default fields
decoded = {
object: 'customer',
subscriptions: {
type: 'list',
data: []
},
...decoded
};
}
}
if (resource === 'subscriptions') {
// Convert price to price object
if (Array.isArray(decoded.items)) {
const first = decoded.items[0];
if (first && typeof first.price === 'string') {
const price = this.#getData(this.prices, first.price)[1];
if (!price) {
return [400, {error: 'Invalid price ' + first.price}];
}
decoded.items = {
data: [
{
...first,
price
}
]
};
}
}
// Add default fields
if (!id) {
decoded = {
object: 'subscription',
cancel_at_period_end: false,
canceled_at: null,
current_period_end: (Date.now() + 1000 * 60 * 60 * 24 * 31) / 1000,
start_date: Math.floor(Date.now() / 1000),
status: 'active',
items: {
type: 'list',
data: []
},
...decoded
};
}
if (typeof decoded.customer === 'string') {
// Add customer to customer list
const customer = this.#getData(this.customers, decoded.customer)[1];
if (!customer) {
return [400, {error: 'Invalid customer ' + decoded.customer}];
}
customer.subscriptions.data.push(decoded);
}
}
if (!id) {
// create
decoded.id = `${resource.substr(0, 4)}_${this.#generateRandomId()}`;
arr.push(decoded);
return [200, decoded];
}
// Patch
const subscription = arr.find(c => c.id === id);
if (!subscription) {
return [404];
}
Object.assign(subscription, decoded);
return [200, subscription];
}
remove() {
for (const interceptor of this.nockInterceptors) {
nock.removeInterceptor(interceptor);
}
this.nockInterceptors = [];
}
stub() {
this.remove();
let interceptor = nock('https://api.stripe.com')
.persist()
.get(/v1\/.*/);
this.nockInterceptors.push(interceptor);
interceptor
.reply((uri) => {
const [match, resource, id] = uri.match(/\/?v1\/(\w+)\/?(\w+)/) || [null];
if (!match) {
return [500];
}
if (resource === 'setup_intents') {
return this.#getData(this.setupIntents, id);
}
if (resource === 'customers') {
return this.#getData(this.customers, id);
}
if (resource === 'subscriptions') {
return this.#getData(this.subscriptions, id);
}
if (resource === 'coupons') {
return this.#getData(this.coupons, id);
}
if (resource === 'payment_methods') {
return this.#getData(this.paymentMethods, id);
}
if (resource === 'prices') {
return this.#getData(this.prices, id);
}
if (resource === 'products') {
return this.#getData(this.products, id);
}
return [500];
});
interceptor = nock('https://api.stripe.com')
.persist()
.post(/v1\/.*/);
this.nockInterceptors.push(interceptor);
interceptor
.reply((uri, body) => {
const [match, resource, id] = uri.match(/\/?v1\/(\w+)(?:\/?(\w+)){0,2}/) || [null];
if (!match) {
return [500];
}
if (resource === 'payment_methods') {
return this.#postData(this.paymentMethods, id, body, resource);
}
if (resource === 'subscriptions') {
return this.#postData(this.subscriptions, id, body, resource);
}
if (resource === 'customers') {
return this.#postData(this.customers, id, body, resource);
}
if (resource === 'coupons') {
return this.#postData(this.coupons, id, body, resource);
}
if (resource === 'prices') {
return this.#postData(this.prices, id, body, resource);
}
if (resource === 'products') {
return this.#postData(this.products, id, body, resource);
}
return [500];
});
interceptor = nock('https://api.stripe.com')
.persist()
.delete(/v1\/.*/);
this.nockInterceptors.push(interceptor);
interceptor
.reply((uri) => {
const [match, resource, id] = uri.match(/\/?v1\/(\w+)(?:\/?(\w+)){0,2}/) || [null];
if (!match) {
return [500];
}
if (resource === 'subscriptions') {
return this.#postData(this.subscriptions, id, 'status=canceled', resource);
}
return [500];
});
}
async sendWebhook(event) {
/**
* @type {any}
*/
const webhookController = stripeService.webhookController;
await webhookController.handleEvent(event);
}
}
module.exports = StripeMocker;