routes.js

/**
 * routes.js
 * Xendit Checkout Demo
 * This file defines all the endpoints for this demo (on the api/backend side).
 */

'use strict';

const express = require('express');
const router = express.Router();

// load the controller
const InvoiceController = require('./controller');
const invoiceController = new InvoiceController();

// load the configuration file
const config = require('./config');

/**
 * Xendit integration to create invoice
 * 1. GET /api/healthcheck/readiness to make sure the server is up and running
 * 2. POST /api/invoice to create invoice (proxy from this backend to Xendit API Gateway)
 */

router.get('/api/healthcheck/readiness', (req, res) => {
    res.json({
        status: 'ok'
    });
});

router.post('/api/invoice', async (req, res) => {
    try {
        // you can change the config with your business details
        const data = {
            ...config.invoiceData,
            external_id: `checkout-demo-${+new Date()}`,
            currency: req.body.currency,
            amount: req.body.amount,
            failure_redirect_url: req.body.redirect_url,
            success_redirect_url: req.body.redirect_url
        };

        const invoice = await invoiceController.create(data);
        return res.status(200).send(invoice.data);
    } catch (e) {
        return res.status(e.response.status).send(e.response.data);
    }
});

module.exports = router;