app.js

require("dotenv").config();
var express = require("express");
var path = require("path");
var favicon = require("serve-favicon");
var logger = require("morgan");
var bodyParser = require("body-parser");
var app = express();

// Mongoose stuff
var mongoose = require("mongoose");
mongoose
  .connect(process.env.MONGODB_URI || "mongodb://localhost/dream_app_db", {
    useNewUrlParser: true,
    useUnifiedTopology: true,
  })
  .then(
    () => {
      /** ready to use. The `mongoose.connect()` promise resolves to undefined. */
      console.log("Database connection successful.");
    },
    (err) => {
      /** handle initial connection error */
      console.log("Error connecting to Database:", err);
    }
  );

// Set up middleware
app.use(favicon(path.join(__dirname, "public", "favicon.ico")));
app.use(logger("dev"));
app.use(bodyParser.json({ limit: "50mb" }));
app.use(
  bodyParser.urlencoded({
    limit: "50mb",
    extended: true,
    parameterLimit: 50000,
  })
);
app.use(express.static(path.resolve(__dirname, "client", "build")));

app.use(function (req, res, next) {
  // before every route, attach the flash messages and current user to res.locals
  res.locals.currentUser = req.user;
  next();
});

// Controllers
app.use("/auth", require("./routes/auth"));
app.use("/dream", require("./routes/dream"));
app.use("/user", require("./routes/user"));
app.use("/profile", require("./routes/profile"));

app.get("*", function (req, res, next) {
  res.sendFile(path.resolve(__dirname, "client", "build", "index.html"));
});

module.exports = app;

app.listen(process.env.PORT || 4000);