app.js

const createError = require('http-errors');
const express = require('express');
const path = require('path');
const cookieParser = require('cookie-parser');
const logger = require('morgan');
const request = require('request');

require('dotenv').config();

const indexRouter = require('./routes/index');

const app = express();

// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'hbs');

app.use(logger('dev'));
app.use(express.json());
app.use(express.urlencoded({ extended: false }));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));

app.locals.title = 'Star Contest';

request(process.env.NASAURL, (error, response, body) => {
  const result = JSON.parse(body);
  if (result.media_type === 'video') {
    app.locals.background = 'https://apod.nasa.gov/apod/image/1805/NGC1532Meunier1024.jpg';
    return;
  }
  app.locals.background === result.url
    ? app.locals.background
    : (app.locals.background = result.url);
});

app.use('/', indexRouter);

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

// error handler
app.use((err, req, res) => {
  // 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;