server.js

const Joi = require("@hapi/joi");
Joi.objectId = require("joi-objectid")(Joi);
const express = require("express");
const app = express();

const mongoose = require("mongoose");
const path = require("path");
const dotenv = require("dotenv");
dotenv.config();

const cors = require("cors");

const { ShrinkUrl } = require("./models/shrinkUrl");

// routes
const users = require("./routes/users");
const auth = require("./routes/auth");
const shrinkUrl = require("./routes/shrinkUrl");
const shortUrl = require("./routes/shortUrl");
const profile = require("./routes/profile");

// middlewares
app.use(cors());
app.use(express.urlencoded({ extended: true }));
app.use(express.json());
app.use("/users", users);
app.use("/auth", auth);
app.use("/shrinkUrl", shrinkUrl);
app.use("/getProfile", profile);

// Serve static files assets on heroku
app.use(express.static(path.join(__dirname, "client/dist")));

app.get("/:shortUrl", async (req, res) => {
  const shorturl = await ShrinkUrl.findOne({ shortUrl: req.params.shortUrl });
  console.log("i am inside");
  console.log(shorturl);
  if (shorturl === null) return res.sendStatus(404);
  shorturl.clicks++;
  shorturl.save();
  res.redirect(shorturl.longUrl);
});

// MongoDB connection string

const MONGO_DB_URI = process.env.MONGO_DB_URI;
const url = MONGO_DB_URI;

const connectionParams = {
  useNewUrlParser: true,
  useCreateIndex: true,
  useUnifiedTopology: true,
};

mongoose
  .connect(url, connectionParams)
  .then(() => console.log("New connection established"))
  .catch((err) => console.log("Something went wrong" + err));

console.log("port" + process.env.PORT);
const port = process.env.PORT || 4000;
// Right before your app.listen(), add this:
app.get("*", (req, res) => {
  res.sendFile(path.join(__dirname + "/client/dist/index.html"));
});
app.listen(port, () => console.log(`Listening on port ${port}...`));