server.js

//PaCOTES
const compression = require("compression");
const express = require("express");
const ejs = require("ejs");
const bodyParser = require("body-parser");
const mongoose = require("mongoose");
const morgan = require("morgan");
const cors = require("cors");


//Start inicial
const app = express();

//Ambiente
const isProduction = process.env.NODE_ENV == "production";
const PORT = process.env.PORT || 3000;

//Arquivos estaticos
app.use("/public", express.static(__dirname + "/public"));
app.use("/public/images", express.static(__dirname + "/public/images"));

//Setup Mongodb
const dbs = require("./config/database");
const dbUri = isProduction ? dbs.dbProduction : dbs.dbTest;
mongoose.connect(dbUri, {useNewUrlParser: true});

//Setup EJS
app.set("view engine", "ejs");

//Configurações
if(!isProduction) app.use(morgan("dev"));
app.use(cors());
app.disable('x-powered-by'); // dificulta saber a utilização de frameworks por terceiros
app.use(compression());

//Setup Body Parser
app.use(bodyParser.urlencoded({extended: false, limit: 1.5*1024*1024})); // dados maiores para cache
app.use(bodyParser.json({extended: false, limit: 1.5*1024*1024})); // dados maiores para cache

//Models
require("./models");

//Rotas
app.use("/",require("./routes"));

// Rotas para gerenciar 404
app.use((req,res,next) => {
    const err = new Error("Not Found");
    err.status = 404;
    next(err);
});

//Rota - 422, 500, 401
app.use((err,req,res,next) => {
    res.status(err.status || 500);
    if(err.status != 404) console.warn("Error: ", err.message, new Date());
    res.json(err);
});

app.listen(PORT, (err) => {
    if(err) throw err;
    console.log(`Rodando na //localhost:${PORT}`);
})