server.js

const path = require("path");
const express = require("express");
const app = express();
const server = require("http").createServer(app);
const io = require("socket.io")(server);
const port = process.env.PORT || 8080;
const mongoose = require("mongoose"),
  User = require("./user");

require("dotenv").config();

mongoose.connect(
  `mongodb+srv://oniva:${
    process.env.password
  }@cluster0-uag2f.mongodb.net/test?retryWrites=true`
);

app.use(express.static(path.join(__dirname, "build")));

app.get("/", (req, res, next) => res.sendFile(__dirname + "index.html"));

io.on("connection", client => {
  client.on("newUser", dict => {
    new User({
      username: `${dict["username"]}`,
      password: `${dict["password"]}`
    }).save(function(err) {
      if (err) console.log(err);
    });
  });
  client.on("login", dict => {
    User.find({ username: dict["username"] }, (err, user) => {
      if (err) console.log(err);
      user.comparePassword(dict["password"], function(err, isMatch) {
        if (err) console.log(err);
        if (isMatch) {
          io.emit("loginAccepted", dict["username"]);
        }
      });
    });
  });

  client.on("newMsg", dict => {
    io.emit("message", `${dict["username"]}: ${dict["msg"]}`);
  });
});

server.listen(port);
console.log("Server started at ", port);