text: const express = require("express");
  const logger = require("morgan");
  const mongoose = require("mongoose");
  const compression = require("compression");
  
  const PORT = process.env.PORT || 3000;
  
  const app = express();
  
  app.use(logger("dev"));
  
  app.use(compression());
  app.use(express.urlencoded({ extended: true }));
  app.use(express.json());
  
  app.use(express.static("public"));
  
  mongoose.connect(
    process.env.MONGODB_URI || "mongodb://localhost/budget", 
    {
    useNewUrlParser: true,
    useFindAndModify: false,
    useUnifiedTopology:true,
    useCreateIndex: true
  });
  
  // routes
  
  app.use(require("./routes/api.js"));
  
  app.listen(PORT, () => {
    console.log("App running on http://localhost:" + PORT)
  });
  