app.js

const express = require("express");
const mongoose = require("mongoose");
const morgan = require("morgan");
const bodyParser = require("body-parser");
const cookieParser = require("cookie-parser");
const cors = require("cors");
const expressValidator = require("express-validator");
const path = require("path");
require("dotenv").config();
// import routes
const authRoutes = require("./routes/auth");
const userRoutes = require("./routes/user");
const categoryRoutes = require("./routes/category");
const productRoutes = require("./routes/product");
const braintreeRoutes = require("./routes/braintree");
const orderRoutes = require("./routes/order");

// app
const app = express();

// db
mongoose
  .connect(process.env.DATABASE, {
    useNewUrlParser: true,
    useCreateIndex: true,
    useUnifiedTopology: true
  })
  .then(() => console.log("DB Connected"));

// middlewares
app.use(morgan("dev"));
app.use(bodyParser.json());
app.use(cookieParser());
app.use(expressValidator());
app.use(cors());

// routes middleware
app.use("/api", authRoutes);
app.use("/api", userRoutes);
app.use("/api", categoryRoutes);
app.use("/api", productRoutes);
app.use("/api", braintreeRoutes);
app.use("/api", orderRoutes);

if (process.env.NODE_ENV === "production") {
  app.use(express.static("client/build"));

  app.get("*", (req, res) =>
    res.sendFile(path.resolve(__dirname, "frontend", "build", "index.html"))
  );
}
const port = process.env.PORT || 5000;

app.listen(port, () => {
  console.log(`Server is running on port ${port}`);
});