server.js

require('dotenv').config();
const createError = require('http-errors');
const express = require('express');
const path = require('path');
const cookieParser = require('cookie-parser');
const bodyParser = require('body-parser');
const logger = require('morgan');
const cors = require("cors");
const app = express();
const PORT = process.env.PORT || 3001;
let db = require("./models");

app.use(cors());
app.use(logger('dev'));
app.use(cookieParser());
app.use(express.urlencoded({ extended: true }));
app.use(bodyParser.json());
app.use(express.json());
//app.use(express.static("routes"));
// Serve up static assets (usually on heroku)
if (process.env.NODE_ENV === "production") {
    app.use(express.static("client/build"));
}
require("./routes/dataRoutes")(app);
require("./routes/apiRoutes")(app);


var syncOptions = { force: false };

// If running a test, set syncOptions.force to true
// clearing the `testdb`
if (process.env.NODE_ENV === "test") {
    syncOptions.force = true;
}

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


db.sequelize.sync(syncOptions).then(function () {
    app.listen(PORT, function () {
        console.log(
            "==> Listening on port %s. Visit http://localhost:%s/ in your browser.",
            PORT,
            PORT
        );
    });
});

module.exports = app;