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tolu-paystack
@@ -0,0 +1,220 @@
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require('dotenv').config({ path: './.env' });
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const express = require('express');
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const { resolve } = require('path');
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const Paystack = require('@paystack/paystack-sdk');
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const crypto = require('crypto');
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const app = express();
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const paystack = new Paystack(process.env.PAYSTACK_SECRET_KEY);
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app.use(express.json());
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app.use(express.urlencoded({ extended: true }));
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app.use(express.static(process.env.STATIC_DIR));
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app.get('/', async (req, res) => {
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const path = resolve(process.env.STATIC_DIR + '/login.html');
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res.sendFile(path);
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});
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app.get('/plans', async (req, res) => {
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let fetchPlansResponse = await paystack.plan.list({});
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if (fetchPlansResponse.status === false) {
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console.log('Error fetching plans: ', fetchPlansResponse.message);
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return res
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.status(400)
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.send(`Error fetching subscriptions: ${fetchPlansResponse.message}`);
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}
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return res.status(200).send(fetchPlansResponse.data);
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});
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app.get('/subscription', async (req, res) => {
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try {
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let { customer } = req.query;
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if (!customer) {
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throw Error('Please include a valid customer ID');
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}
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let fetchSubscriptionsResponse = await paystack.subscription.list({
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customer,
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});
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if (fetchSubscriptionsResponse.status === false) {
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console.log(
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'Error fetching subscriptions: ',
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fetchSubscriptionsResponse.message
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);
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return res
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.status(400)
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.send(
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`Error fetching subscriptions: ${fetchSubscriptionsResponse.message}`
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);
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}
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let subscriptions = fetchSubscriptionsResponse.data.filter(
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(subscription) =>
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subscription.status === 'active' ||
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subscription.status === 'non-renewing'
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);
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return res.status(200).send(subscriptions);
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} catch (error) {
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console.log(error);
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return res.status(400).send(error.message);
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}
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});
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app.post('/initialize-transaction-with-plan', async (req, res) => {
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try {
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let { email, amount, plan } = req.body;
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if (!email || !amount || !plan) {
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throw Error(
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'Please provide a valid customer email, amount to charge, and plan code'
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);
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}
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let initializeTransactionResponse = await paystack.transaction.initialize({
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email,
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amount,
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plan,
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channels: ['card'], // limiting the checkout to show card, as it's the only channel that subscriptions are currently available through
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callback_url: 'http://localhost:5000/account.html',
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});
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if (initializeTransactionResponse.status === false) {
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return console.log(
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'Error initializing transaction: ',
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initializeTransactionResponse.message
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);
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}
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let transaction = initializeTransactionResponse.data;
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return res.status(200).send(transaction);
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} catch (error) {
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return res.status(400).send(error.message);
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}
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});
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app.post('/create-subscription', async (req, res) => {
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try {
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let { customer, plan, authorization, start_date } = req.body;
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if (!customer || !plan) {
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throw Error('Please provide a valid customer code and plan ID');
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}
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let createSubscriptionResponse = await paystack.subscription.create({
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customer,
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plan,
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authorization,
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start_date,
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});
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if (createSubscriptionResponse.status === false) {
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return console.log(
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'Error creating subscription: ',
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createSubscriptionResponse.message
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);
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}
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let subscription = createSubscriptionResponse.data;
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return res.status(200).send(subscription);
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} catch (error) {
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return res.status(400).send(error.message);
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}
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});
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app.post('/cancel-subscription', async (req, res) => {
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try {
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let { code, token } = req.body;
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if (!code || !token) {
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throw Error(
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'Please provide a valid customer code and subscription token'
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);
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}
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let disableSubscriptionResponse = await paystack.subscription.disable({
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code,
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token,
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});
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return res.send('Subscription successfully disabled');
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} catch (error) {
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return res.status(400).send(error);
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}
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});
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app.get('/update-payment-method', async (req, res) => {
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try {
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const { subscription_code } = req.query;
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const manageSubscriptionLinkResponse =
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await paystack.subscription.manageLink({
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code: subscription_code,
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});
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if (manageSubscriptionLinkResponse.status === false) {
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console.log(manageSubscriptionLinkResponse.message);
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}
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let manageSubscriptionLink = manageSubscriptionLinkResponse.data.link;
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return res.redirect(manageSubscriptionLink);
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} catch (error) {
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console.log(error);
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}
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});
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app.post('/create-customer', async (req, res) => {
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try {
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let { email } = req.body;
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if (!email) {
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throw Error('Please include a valid email address');
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}
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let createCustomerResponse = await paystack.customer.create({
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email,
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});
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if (createCustomerResponse.status === false) {
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console.log('Error creating customer: ', createCustomerResponse.message);
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return res
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.status(400)
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.send(`Error creating customer: ${createCustomerResponse.message}`);
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}
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let customer = createCustomerResponse.data;
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// This is where you would save your customer to your DB. Here, we're mocking that by just storing the customer_code in a cookie
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res.cookie('customer', customer.customer_code);
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return res.status(200).send(customer);
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} catch (error) {
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console.log(error);
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return res.status(400).send(error.message);
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}
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});
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// Handle subscription events sent by Paystack
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app.post('/webhook', async (req, res) => {
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const hash = crypto
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.createHmac('sha512', secret)
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.update(JSON.stringify(req.body))
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.digest('hex');
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if (hash == req.headers['x-paystack-signature']) {
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const webhook = req.body;
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res.status(200).send('Webhook received');
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switch (webhook.event) {
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case 'subscription.create':
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case 'charge.success':
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case 'invoice.update':
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case 'invoice.payment_failed':
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case 'subscription.not_renew':
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case 'subscription.disable':
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case 'subscription.expiring_cards':
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}
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}
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});
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app.listen(process.env.PORT, () => {
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console.log(`App running at http://localhost:${process.env.PORT}`);
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});
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