app.js

var createError = require('http-errors');
var express = require('express');
var path = require('path');
var cookieParser = require('cookie-parser');
var logger = require('morgan');
var session = require('express-session');
var RedisStore = require('connect-redis')(session);
var formidable = require('formidable');
var path = require('path');

var indexRouter = require('./routes/index');
var adminRouter = require('./routes/admin');

var app = express();

//middleware formidable
app.use(function(req, res, next){
  
  if(req.method === 'POST') {
  
  var form = formidable.IncomingForm({
    uploadDir:path.join(__dirname, "/public/images"),
    keepExtensions:true
  });

  form.parse(req, function(err, fields, files){
    req.body = fields; //recria o req.body com os campos já enviados.
    req.fields = fields;
    req.files = files;

    next();
  });
 } else {
   next();
 }
});


// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'ejs');
//connection Redis (session)
app.use(session({
   store: new RedisStore({
    host: 'localhost',
    port: 6379
   }),
   secret: 'p@ssW0rd',
   resave: true,
   saveUninitialized: true
}));

app.use(logger('dev'));
app.use(express.json());
//Se habilitado a linha abaixo gera conflito com o body
//parse do middleware formidable.Ao efetuar o logout no sistema
//e tentar logar novamente, o login fica em looping infinito.
// app.use(express.urlencoded({ extended: false }));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));

app.use('/', indexRouter);
app.use('/admin', adminRouter);

// catch 404 and forward to error handler
app.use(function(req, res, next) {
  next(createError(404));
});

// error handler
app.use(function(err, req, res, next) {
  // set locals, only providing error in development
  res.locals.message = err.message;
  res.locals.error = req.app.get('env') === 'development' ? err : {};

  // render the error page
  res.status(err.status || 500);
  res.render('error');
});

module.exports = app;