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 app = express();
var cors = require('cors');
// use it before all route definitions
app.use(cors({origin: '*'}));
var indexRouter = require('./routes/index');
var usersRouter = require('./routes/resources');

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

app.use(logger('dev'));

app.use(express.json({
  inflate: true,
  limit: '5gb',
  reviver: null,
  strict: true,
  type: 'application/json',
  verify: undefined
}));
app.use(express.urlencoded({limit: '5gb', extended: true}));
//app.use(express.urlencoded({ extended: false }));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));

app.use('/', indexRouter);
app.use('/', usersRouter);

// 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 : {};
  //res.header("Access-Control-Allow-Origin", "https://spatialbloomfilter.github.io");
   res.header("Access-Control-Allow-Origin", "http://localhost:4200");

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

module.exports = app;