server.js

require("dotenv").config();
const express = require("express");
const path = require("path");
const PORT = process.env.PORT || 3001;
const app = express();
const routes = require("./routes");
const db = require("./models");
const passport = require("./config/passport")

app.use(passport.initialize());
app.use(passport.session());
// Serve up static assets (usually on heroku)
if (process.env.NODE_ENV === "production") {
  app.use(express.static("client/build"));
}
app.use(express.json())
app.use(express.urlencoded({ extended: true }))
// Send every request to the React app
// Define any API routes before this runs
app.use(routes)

// Syncing our sequelize models and then starting our Express app
db.sequelize.sync().then(function () {
  app.listen(PORT, function () {
    console.log("App listening on PORT " + PORT);
  });
});