app.js

const cors = require('cors');
const express = require('express');
const mongoose = require('mongoose');
const bodyParser = require('body-parser');
const helmet = require('helmet');
const { errors } = require('celebrate');
const errorHandler = require('./middlewares/errors');
const { requestLogger, errorLogger } = require('./middlewares/logger');
const limiter = require('./middlewares/limiter');
const router = require('./routes/index');
const { mongoServer } = require('./utils/utils');

mongoose.connect(mongoServer, {
  useNewUrlParser: true,
  useCreateIndex: true,
  useFindAndModify: false,
  useUnifiedTopology: true,
});

const app = express();

const { PORT = 3000 } = process.env;
app.listen(PORT);
app.use(cors());
app.use(helmet());
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: true }));
app.use(requestLogger);
app.use(limiter);
app.use('/', router);
app.use(errorLogger);
app.use(errors());
app.use(errorHandler);