server.js

const express = require("express");
const cors = require("cors");
const bodyParser = require("body-parser");
const path = require("path");

if (process.env.NODE_ENV !== "production") {
    require('dotenv').config();
}

const stripe = require("stripe")(process.env.STRIPE_SECRET_KEY);

const app = express();
const port = process.env.PORT || 5000;

app.use(bodyParser.json());
app.use(bodyParser.urlencoded({extended: true}));

if (process.env.NODE_ENV === "production") {
    app.use(express.static(path.join(__dirname, "client/build")));

    app.get("*", function(req, res) {
        res.sendFile(path.join(__dirname, "client/build", "index.html"));
    })
}

app.post("/payment", (req, res) => {
    const body = {
        source: req.body.token.id,
        amount: req.body.amount,
        currency: 'usd'
    }

    stripe.charges.create(body, (stripeErr, stripeRes) => {
        if(stripeErr){
            res.status(500).send({ error: stripeErr});
        } else {
            res.status(200).send({success: stripeRes});
        }
    })
})

app.listen(port, error => {
    if(error) throw error;
    
    console.log("Sever running on port:", port)
})