mirror of
https://github.com/jambonz/jambonz-api-server.git
synced 2026-10-30 19:34:14 +00:00
merge of features from hosted branch (#7)
major merge of features from the hosted branch that was created temporarily during the initial launch of jambonz.org
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Dave Horton authored and GitHub committed
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@@ -0,0 +1,224 @@
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if (!process.env.JAMBONES_HOSTING) return;
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const assert = require('assert');
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assert.ok(process.env.STRIPE_API_KEY || process.env.NODE_ENV === 'test',
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'missing env STRIPE_API_KEY for billing operations');
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assert.ok(process.env.STRIPE_BASE_URL || process.env.NODE_ENV === 'test',
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'missing env STRIPE_BASE_URL for billing operations');
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const bent = require('bent');
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const formurlencoded = require('form-urlencoded').default;
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const qs = require('qs');
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const toBase64 = (str) => Buffer.from(str || '', 'utf8').toString('base64');
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const basicAuth = () => {
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const header = `Basic ${toBase64(process.env.STRIPE_API_KEY)}`;
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return {Authorization: header};
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};
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const postForm = bent(process.env.STRIPE_BASE_URL || 'http://127.0.0.1', 'POST', 'string',
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Object.assign({'Content-Type': 'application/x-www-form-urlencoded'}, basicAuth()), 200);
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const getJSON = bent(process.env.STRIPE_BASE_URL || 'http://127.0.0.1', 'GET', 'json', basicAuth(), 200);
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const deleteJSON = bent(process.env.STRIPE_BASE_URL || 'http://127.0.0.1', 'DELETE', 'json', basicAuth(), 200);
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//const debug = require('debug')('jambonz:api-server');
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const listProducts = async(logger) => await getJSON('/products?active=true');
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const listPrices = async(logger) => await getJSON('/prices?active=true&expand[]=data.tiers&expand[]=data.product');
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const retrievePricesForProduct = async(logger, id) =>
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await getJSON(`/prices?product=${id}&active=true&expand[]=data.tiers&expand[]=data.product`);
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const retrieveProduct = async(logger, id) =>
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await getJSON(`/products/${id}`);
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const retrieveCustomer = async(logger, id) =>
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await getJSON(`/customers/${id}`);
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const retrieveUpcomingInvoice = async(logger, customer_id, subscription_id, items) => {
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const params = Object.assign(
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{customer: customer_id},
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subscription_id ? {subscription: subscription_id} : {},
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items ? {subscription_items: items} : {});
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const queryString = qs.stringify(params, {encode: false});
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logger.debug({params, qs}, 'retrieving upcoming invoice');
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return await getJSON(`/invoices/upcoming?${queryString}`);
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};
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const retrieveInvoice = async(logger, id) =>
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await getJSON(`/invoices/${id}`);
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const createCustomer = async(logger, account_sid, email, name) => {
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const obj = {
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email,
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metadata: {account_sid}
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};
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if (name) obj.name = name;
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logger.debug({obj}, 'provisioning customer');
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const result = await postForm('/customers', formurlencoded(obj));
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return JSON.parse(result);
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};
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const updateCustomer = async(logger, id, obj) => {
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logger.debug({obj}, `updating customer ${id}`);
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const result = await postForm(`/customers/${id}`, formurlencoded(obj));
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return JSON.parse(result);
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};
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const deleteCustomer = async(logger, id) =>
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await deleteJSON(`/customers/${id}`);
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const attachPaymentMethod = async(logger, payment_method_id, customer_id) => {
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const obj = {
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customer: customer_id
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};
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const result = await postForm(`/payment_methods/${payment_method_id}/attach`,
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formurlencoded(obj));
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return JSON.parse(result);
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};
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const detachPaymentMethod = async(logger, payment_method_id) => {
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const result = await postForm(`/payment_methods/${payment_method_id}/detach`);
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return JSON.parse(result);
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};
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const createSubscription = async(logger, customer, metadata, items) => {
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assert.ok(Array.isArray(items) && items.length > 0);
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const obj = {
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customer,
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metadata,
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items
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};
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const result = await postForm('/subscriptions?expand[]=latest_invoice&expand[]=latest_invoice.payment_intent',
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formurlencoded(obj));
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return JSON.parse(result);
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};
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/*
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const deleteInvoiceItem = async(logger, id) => {
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return JSON.parse(await deleteJSON(`/invoiceitems/${id}`));
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};
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*/
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const updateSubscription = async(logger, id, items) => {
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assert.ok(Array.isArray(items) && items.length > 0);
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const obj = {
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proration_behavior: 'always_invoice',
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payment_behavior: 'pending_if_incomplete',
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items
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};
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const result = await postForm(`/subscriptions/${id}`,
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formurlencoded(obj));
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return JSON.parse(result);
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};
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const payInvoice = async(logger, id) => {
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const result = await postForm(`/invoices/${id}/pay`);
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return JSON.parse(result);
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};
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const payOutstandingInvoicesForCustomer = async(logger, customer_id) => {
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let success = true;
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const customer = await retrieveCustomer(logger, customer_id);
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const {subscriptions} = customer;
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logger.debug({subscriptions}, 'payOutstandingInvoicesForCustomer - subscriptions');
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if (subscriptions && subscriptions.data.length > 0) {
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const promises = subscriptions.data
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.filter((s) => ['incomplete', 'past_due'].includes(s.status) || s.pending_update)
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.map((s) => payInvoice(logger, s.latest_invoice));
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const invoices = await Promise.all(promises);
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if (invoices.find((i) => 'paid' !== i.status)) {
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success = false;
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}
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}
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return success;
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};
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const retrieveSubscription = async(logger, id) =>
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await getJSON(`/subscriptions/${id}?expand[]=latest_invoice`);
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const cancelSubscription = async(logger, id) =>
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await deleteJSON(`/subscriptions/${id}`);
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const retrievePaymentMethod = async(logger, id) => await getJSON(`/payment_methods/${id}`);
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const calculateInvoiceAmount = async(logger, products) => {
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assert.ok(Array.isArray(products) && products.length, 'calculateInvoiceAmount: products must be array');
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assert.ok(!products.find((p) => !p.priceId || !p.quantity), 'calculateInvoiceAmount: invalid products array');
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const prices = await Promise.all(products.map((p) => {
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return getJSON(`/prices/${p.priceId}?expand[]=tiers`);
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}));
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logger.debug({prices, products}, 'calculateInvoiceAmount retrieved prices');
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const total = prices.reduce((acc, pr) => {
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const product = products.find((product) => product.priceId === pr.id);
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logger.debug({product}, 'calculating price for line item');
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if (pr.billing_scheme === 'per_unit') {
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const lineItemCost = pr.unit_amount * product.quantity;
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logger.debug(`per-unit pricing: ${product.quantity} * ${pr.unit_amount} = ${lineItemCost} usd`);
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return acc + lineItemCost;
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}
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else if (pr.billing_scheme === 'tiered') {
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const tier = pr.tiers.find((t) => product.quantity <= t.up_to || t.up_to === null);
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if (typeof tier.flat_amount === 'number') {
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const lineItemCost = tier.flat_amount;
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logger.debug({tier}, `tiered pricing, flat amount: ${product.quantity} = ${lineItemCost} usd`);
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return acc + lineItemCost;
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}
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else {
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const lineItemCost = tier.unit_amount * product.quantity;
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logger.debug({tier},
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`tiered pricing, per-unit based: ${product.quantity} * ${tier.unit_amount} = ${lineItemCost} usd`);
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return acc + (tier.unit_amount * product.quantity);
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}
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}
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else {
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// TODO: handle volume pricing
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assert(false, `calculateInvoiceAmount: billing_scheme ${pr.billing_scheme} not implemented!!`);
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}
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}, 0);
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logger.debug(`calculateInvoiceAmount total cost ${total}`);
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return {amount: total, currency: prices[0].currency};
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};
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const createPaymentIntent = async(logger,
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{account_sid, stripe_customer_id, amount, email, currency, stripe_payment_method_id}) => {
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const obj = {
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amount,
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currency,
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customer: stripe_customer_id,
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payment_method: stripe_payment_method_id,
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receipt_email: email,
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metadata: {
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account_sid
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},
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setup_future_usage: 'off_session'
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};
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const result = await postForm('/payment_intents', formurlencoded(obj));
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return JSON.parse(result);
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};
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module.exports = {
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listProducts,
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listPrices,
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createCustomer,
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retrieveCustomer,
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updateCustomer,
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deleteCustomer,
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createSubscription,
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retrieveSubscription,
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cancelSubscription,
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updateSubscription,
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retrievePaymentMethod,
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calculateInvoiceAmount,
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createPaymentIntent,
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attachPaymentMethod,
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detachPaymentMethod,
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retrieveUpcomingInvoice,
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payOutstandingInvoicesForCustomer,
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retrieveInvoice,
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retrieveProduct,
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retrievePricesForProduct
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};
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