501 lines
16 KiB
JavaScript
501 lines
16 KiB
JavaScript
const DomainEvents = require('@tryghost/domain-events');
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const nock = require('nock');
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let members = {};
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let stripeService = {};
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let tiers = {};
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let models = {};
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const crypto = require('crypto');
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// @ts-check
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/**
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* @typedef {"customers" | "checkout" | "subscriptions" | "coupons" | "payment_methods" | "prices" | "setup_intents" | "products"} resource
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*/
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/**
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* 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.
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*
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* If you create a new subscription, it will by default send the checkout.session.completed webhook.
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* If you update a subscription, it will by default send the customer.subscription.updated webhook.
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*/
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class StripeMocker {
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customers = [];
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subscriptions = [];
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paymentMethods = [];
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setupIntents = [];
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coupons = [];
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prices = [];
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products = [];
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checkoutSessions = [];
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nockInterceptors = [];
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constructor(data = {}) {
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this.customers = data.customers ?? [];
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this.subscriptions = data.subscriptions ?? [];
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this.paymentMethods = data.paymentMethods ?? [];
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this.setupIntents = data.setupIntents ?? [];
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this.coupons = data.coupons ?? [];
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this.prices = data.prices ?? [];
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this.products = data.products ?? [];
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}
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reset() {
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this.customers = [];
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this.subscriptions = [];
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this.paymentMethods = [];
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this.setupIntents = [];
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this.coupons = [];
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this.prices = [];
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this.products = [];
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this.checkoutSessions = [];
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// Fix for now, because of importing order breaking some things when they are not initialized
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members = require('../../core/server/services/members');
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stripeService = require('../../core/server/services/stripe');
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tiers = require('../../core/server/services/tiers');
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models = require('../../core/server/models');
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}
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/**
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* Generates a random ID.
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* @returns {string} The generated random ID.
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*/
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#generateRandomId() {
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return crypto.randomBytes(8).toString('hex');
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}
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/**
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* Creates a mock Stripe customer.
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* @param {object} overrides - Optional overrides for the customer object.
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* @returns {object} - The created Stripe customer object.
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*/
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createCustomer(overrides = {}) {
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const customerId = `cus_${this.#generateRandomId()}`;
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const stripeCustomer = {
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id: customerId,
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object: 'customer',
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name: 'Test User',
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email: customerId + '@example.com',
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subscriptions: {
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type: 'list',
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data: []
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},
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...overrides
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};
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this.customers.push(stripeCustomer);
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return stripeCustomer;
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}
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/**
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* Fetches a mock Stripe price for a given product/tier (by slug).
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* @param {string} tierSlug
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* @param {'month' | 'year'} cadence
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* @returns {Promise<object>} - The fetched Stripe price object.
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*/
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async getPriceForTier(tierSlug, cadence) {
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const product = await models.Product.findOne({slug: tierSlug});
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if (!product) {
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throw new Error('Product not found with slug ' + tierSlug);
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}
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const tier = await tiers.api.read(product.id);
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const payments = members.api.paymentsService;
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const {id} = await payments.createPriceForTierCadence(tier, cadence);
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return this.#getData(this.prices, id)[1];
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}
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/**
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* Creates a Ghost tier (product).
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* @param {object} data
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* @param {string} [data.name]
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* @param {string} data.currency
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* @param {number} data.monthly_price
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* @param {number} data.yearly_price
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* @returns {Promise<object>} - The created product object.
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*/
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async createTier({name, currency, monthly_price, yearly_price}) {
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const result = await tiers.api.add({
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name: name ?? ('Tier ' + this.#generateRandomId()),
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type: 'paid',
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currency: currency.toUpperCase(),
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monthlyPrice: monthly_price,
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yearlyPrice: yearly_price
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});
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return await models.Product.findOne({
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id: result.id.toHexString()
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});
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}
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/**
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* Creates a trial subscription.
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*
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* @param {object} options - The options for creating the trial subscription.
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* @param {string} options.customer - The customer ID.
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* @param {string} options.price - The price ID.
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* @param {object} [options.overrides] - Optional overrides for the trial subscription.
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* @returns {Promise<object>} - The created trial subscription object.
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*/
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async createTrialSubscription({customer, price, ...overrides}) {
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return await this.createSubscription({
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customer,
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price,
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status: 'trialing',
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trial_start: Date.now() / 1000,
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trial_end: (Date.now() + 1000 * 60 * 60 * 24 * 7) / 1000,
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...overrides
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});
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}
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async createIncompleteSubscription({customer, price, ...overrides}) {
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return await this.createSubscription({
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customer,
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price,
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status: 'incomplete',
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...overrides
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});
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}
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async updateSubscription({id, ...overrides}) {
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const subscription = this.#postData(this.subscriptions, id, overrides, 'subscriptions')[1];
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// Send update webhook
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await this.sendWebhook({
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type: 'customer.subscription.updated',
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data: {
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object: subscription
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}
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});
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await DomainEvents.allSettled();
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}
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/**
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* Creates a subscription for a customer.
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*
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* @param {object} data - The data for creating the subscription.
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* @param {object} data.customer - The customer object.
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* @param {object} data.price - The price object.
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* @param {object} [data.overrides] - Optional overrides for the subscription object.
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* @param {object} options - The options for creating the subscription.
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* @param {object} [options.sendWebhook=true] - Whether to send a webhook or not.
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* @returns {Promise<Object>} The created subscription object.
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*/
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async createSubscription({customer, price, ...overrides}, options = {sendWebhook: true}) {
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const subscriptionId = `sub_${this.#generateRandomId()}`;
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const subscription = {
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id: subscriptionId,
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object: 'subscription',
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cancel_at_period_end: false,
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canceled_at: null,
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current_period_end: (Date.now() + 1000 * 60 * 60 * 24 * 31) / 1000,
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start_date: Math.floor(Date.now() / 1000),
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status: 'active',
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items: {
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type: 'list',
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data: [
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{
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price
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}
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]
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},
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customer: customer.id,
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...overrides
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};
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this.subscriptions.push(subscription);
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customer.subscriptions.data.push(subscription);
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// Announce
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if (options.sendWebhook) {
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await this.sendWebhook({
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type: 'checkout.session.completed',
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data: {
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object: {
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mode: 'subscription',
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customer: customer.id,
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metadata: {
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checkoutType: 'signup'
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}
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}
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}
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});
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}
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return subscription;
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}
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/**
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* Retrieves requested data from the in-memory storage similar to a HTTP request.
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*
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* @param {Array} arr - The array to search in.
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* @param {string} id - The id to search for.
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* @returns {Array} - An array containing the HTTP status code and the setup intent object.
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* If the setup intent is not found, returns [404].
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*/
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#getData(arr, id) {
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const setupIntent = arr.find(c => c.id === id);
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if (!setupIntent) {
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return [404];
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}
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return [200, setupIntent];
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}
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/**
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* Handles creation and updating of in memory resources.
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*
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* @param {Array} arr - The array to store the processed data.
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* @param {string} id - The ID of the resource.
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* @param {string} body - The body of the POST request.
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* @param {resource} resource - The type of resource.
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* @returns {Array} - An array containing the HTTP status code and the processed data.
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*/
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#postData(arr, id, body, resource) {
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const qs = require('qs');
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let decoded = qs.parse(body, {
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allowPrototypes: true,
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decoder(value) {
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// Convert numbers to numbers and bools to bools
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if (/^(\d+|\d*\.\d+)$/.test(value)) {
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return parseFloat(value);
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}
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let keywords = {
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true: true,
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false: false,
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null: null
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};
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if (value in keywords) {
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return keywords[value];
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}
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return decodeURIComponent(value);
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}
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});
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if (resource === 'customers') {
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if (!id) {
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// Add default fields
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decoded = {
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object: 'customer',
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subscriptions: {
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type: 'list',
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data: []
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},
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...decoded
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};
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}
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}
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if (resource === 'checkout') {
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if (!id) {
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// Add default fields
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decoded = {
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object: 'checkout.session',
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...decoded,
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url: 'https://checkout.stripe.com/c/pay/fake-data'
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};
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}
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}
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if (resource === 'subscriptions') {
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// Convert price to price object
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if (Array.isArray(decoded.items)) {
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const first = decoded.items[0];
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if (first && typeof first.price === 'string') {
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const price = this.#getData(this.prices, first.price)[1];
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if (!price) {
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return [400, {error: 'Invalid price ' + first.price}];
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}
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decoded.items = {
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data: [
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{
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...first,
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price
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}
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]
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};
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}
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}
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// Add default fields
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if (!id) {
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decoded = {
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object: 'subscription',
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cancel_at_period_end: false,
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canceled_at: null,
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current_period_end: (Date.now() + 1000 * 60 * 60 * 24 * 31) / 1000,
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start_date: Math.floor(Date.now() / 1000),
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status: 'active',
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items: {
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type: 'list',
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data: []
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},
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...decoded
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};
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}
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if (typeof decoded.customer === 'string') {
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// Add customer to customer list
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const customer = this.#getData(this.customers, decoded.customer)[1];
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if (!customer) {
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return [400, {error: 'Invalid customer ' + decoded.customer}];
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}
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customer.subscriptions.data.push(decoded);
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}
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}
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if (!id) {
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// create
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decoded.id = `${resource.substr(0, 4)}_${this.#generateRandomId()}`;
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arr.push(decoded);
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return [200, decoded];
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}
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// Patch
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const subscription = arr.find(c => c.id === id);
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if (!subscription) {
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return [404];
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}
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Object.assign(subscription, decoded);
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return [200, subscription];
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}
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/**
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* Removes all the registered nock interceptors.
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*/
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remove() {
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for (const interceptor of this.nockInterceptors) {
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nock.removeInterceptor(interceptor);
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}
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this.nockInterceptors = [];
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}
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/**
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* Stubs the Stripe API.
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* This will intercept all requests to the Stripe API and return the mocked data.
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*/
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stub() {
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this.remove();
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let interceptor = nock('https://api.stripe.com')
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.persist()
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.get(/v1\/.*/);
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this.nockInterceptors.push(interceptor);
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interceptor
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.reply((uri) => {
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const [match, resource, id] = uri.match(/\/?v1\/(\w+)\/?(\w+)/) || [null];
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if (!match) {
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return [500];
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}
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if (resource === 'setup_intents') {
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return this.#getData(this.setupIntents, id);
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}
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if (resource === 'customers') {
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return this.#getData(this.customers, id);
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}
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if (resource === 'subscriptions') {
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return this.#getData(this.subscriptions, id);
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}
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if (resource === 'coupons') {
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return this.#getData(this.coupons, id);
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}
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if (resource === 'payment_methods') {
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return this.#getData(this.paymentMethods, id);
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}
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if (resource === 'prices') {
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return this.#getData(this.prices, id);
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}
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if (resource === 'products') {
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return this.#getData(this.products, id);
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}
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return [500];
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});
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interceptor = nock('https://api.stripe.com')
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.persist()
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.post(/v1\/.*/);
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this.nockInterceptors.push(interceptor);
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interceptor
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.reply((uri, body) => {
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const [match, resource, id] = uri.match(/\/?v1\/(\w+)(?:\/?(\w+)){0,2}/) || [null];
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if (!match) {
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return [500];
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}
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if (resource === 'payment_methods') {
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return this.#postData(this.paymentMethods, id, body, resource);
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}
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if (resource === 'subscriptions') {
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return this.#postData(this.subscriptions, id, body, resource);
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}
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if (resource === 'customers') {
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return this.#postData(this.customers, id, body, resource);
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}
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if (resource === 'coupons') {
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return this.#postData(this.coupons, id, body, resource);
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}
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if (resource === 'prices') {
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return this.#postData(this.prices, id, body, resource);
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}
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if (resource === 'products') {
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return this.#postData(this.products, id, body, resource);
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}
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if (resource === 'checkout' && id === 'sessions') {
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return this.#postData(this.checkoutSessions, null, body, resource);
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}
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return [500];
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});
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interceptor = nock('https://api.stripe.com')
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.persist()
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.delete(/v1\/.*/);
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this.nockInterceptors.push(interceptor);
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interceptor
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.reply((uri) => {
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const [match, resource, id] = uri.match(/\/?v1\/(\w+)(?:\/?(\w+)){0,2}/) || [null];
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if (!match) {
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return [500];
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}
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if (resource === 'subscriptions') {
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return this.#postData(this.subscriptions, id, 'status=canceled', resource);
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}
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return [500];
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});
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}
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/**
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* Sends a webhook event to the Stripe webhook controller.
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*
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* @param {any} event - The webhook event to send.
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* @returns {Promise<void>} - A promise that resolves when the webhook event is handled.
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*/
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async sendWebhook(event) {
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const webhookController = stripeService.webhookController;
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await webhookController.handleEvent(event);
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}
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}
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module.exports = StripeMocker;
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