index.js

const express = require("express");
const favicon = require("serve-favicon");
const path = require("path");
const bodyParser = require("body-parser");
const { MercadoPagoConfig, Payment } = require("mercadopago");

const client = new MercadoPagoConfig({ accessToken: "ACCESS_TOKEN" });
const payment = new Payment(client);

const PORT = 3001;
const app = express();
app.use(express.json());
app.use(bodyParser.urlencoded({ extended: true }));
app.use(favicon(path.join(__dirname, "public", "favicon.ico")));

app.get("/", (req, res) => {
  res.send(`bricks prod is on`);
});

app.get("/:fileName", (req, res) => {
  try {
    return res.sendFile(path.join(__dirname, `/public/${req.params.fileName}`));
  } catch (e) {
    return res.status(500).json({ e });
  }
});

app.post("/process_payment", async (req, res) => {
  const formData = "formData" in req.body ? req.body.formData : req.body;

  if (!formData) {
    res.status(400).send("Invalid formData at body", req.body);
    return;
  }

  if (formData.payment_method_id === "pse") {
    formData.description = "white t-shirt";
    formData.additional_info = {
      // ip_address randomly generated
      ip_address: "177.59.165.145",
    };
    formData.callback_url = "https://google.com";
  }

  try {
    const paymentResponse = await payment.create({ body: formData });
    res.status(201).json(paymentResponse);
  } catch (err) {
    res.status(err.status).json({ err });
  }
});

app.listen(PORT, () => {
  console.log(`Bricks PROD listening on http://localhost:${PORT}`);
});