server.js

var express = require("express");
var path = require("path");
var favicon = require("serve-favicon");
var logger = require("morgan");
var cookieParser = require("cookie-parser");
var bodyParser = require("body-parser");

var index = require("./server/routes/routes");

var app = express();

app.use(function(req, res, next) {
  res.header("Access-Control-Allow-Origin", "*");
  res.header(
    "Access-Control-Allow-Headers",
    "Origin, X-Requested-With, Content-Type, Accept"
  );
  next();
});

// // view engine setup
app.set("views", path.join(__dirname, "views"));
app.set("view engine", "jade");

// uncomment after placing your favicon in /public
//app.use(favicon(path.join(__dirname, 'public', 'favicon.ico')));
app.use(logger("dev"));
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: false }));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, "public")));

app.use("/", index);

// catch 404 and forward to error handler
// app.use(function(req, res, next) {
//   var err = new Error("Not Found");
//   err.status = 404;
//   next(err);
// });

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

//   // render the error page
//   res.status(err.status || 500);
// });

// if (process.env.NODE_ENV === "production") {
  // Serve any static files
  app.use(express.static(path.join(__dirname, "client/build")));
  // Handle React routing, return all requests to React app
  app.get("*", function(req, res) {
    res.sendFile(path.join(__dirname, "client/build", "index.html"));
  });
// }

app.listen(process.env.PORT || 4000, () => {
  console.log("Ready");
});

// module.exports = app;