app.js

require("dotenv").config();
var createError = require('http-errors');
var express = require('express');
var path = require('path');
var cookieParser = require('cookie-parser');
var logger = require('morgan');
const braintree = require('braintree');
const mysql = require('mysql');
const bodyParser = require('body-parser');
const hbs = require('handlebars');

//express router
const indexRouter = require('./routes/index');
const checkoutRouter = require('./routes/checkout');
const transactionRouter = require('./routes/transactions');


const app = express();

const gateway = new braintree.BraintreeGateway({
  environment: braintree.Environment.Sandbox,
  merchantId: process.env.BT_MERCHANT_ID,
  publicKey: process.env.BT_PUBLIC_KEY,
  privateKey: process.env.BT_PRIVATE_KEY
});

// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'hbs');

app.use(logger('dev'));
app.use(express.json());
app.use(express.urlencoded({
  extended: false
}));
app.use(cookieParser());
app.use(express.static('public'));

//routes
app.use('/', indexRouter);
app.use('/transactions', transactionRouter);
app.use('/checkout', checkoutRouter);

// catch 404 and forward to error handler
app.use(function(req, res, next) {
  next(createError(404));
});

// error handler
app.use(function(err, req, res, next) {
  res.locals.message = err.message;
  res.locals.error = req.app.get('env') === 'development' ? err : {};

  res.status(err.status || 500);
  res.render('error');
});


module.exports = app;