server.js

const express = require("express");
const path = require("path");
const logger = require("morgan");
const compression = require("compression");

const PORT = process.env.PORT || 18672;

const app = express();

app.use(logger("dev"));

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

if (process.env.NODE_ENV === "production") {
  app.use(express.static("client/build"));
  app.get("*", (req, res) => {
    res.sendFile(path.join(__dirname, "/client/build/index.html"));
  });
} else {
  app.use(express.static(path.join(__dirname, "/client/public")));
  app.get("*", (req, res) => {
    res.sendFile(path.join(__dirname, "./client/public/index.html"));
  });
}

app.listen(PORT, () => {
  console.log(`App is active at http://localhost:${PORT}`);
});