text: const createError = require('http-errors');
  const express = require('express');
  const path = require('path');
  const cookieParser = require('cookie-parser');
  const logger = require('morgan');
  const { graphqlExpress } = require('graphql-server-express');
  const bodyParser = require('body-parser');
  
  /* eslint-disable-next-line no-underscore-dangle */
  global.__basedir = __dirname;
  
  const schema = require('./schema');
  const nodeModel = require('./models/nodesGraph');
  
  const app = express();
  
  // view engine setup
  app.set('views', path.join(__dirname, 'views'));
  app.set('view engine', 'jade');
  
  app.use(logger('dev'));
  app.use(express.json());
  app.use(express.urlencoded({ extended: false }));
  app.use(cookieParser());
  app.use(express.static(path.join(__dirname, 'dist')));
  
  app.use(('/graphql', bodyParser.json(),
  graphqlExpress(() => ({
    schema,
    context: {
      nodeModel,
    },
  }))));
  
  app.use('*', (req, res) => {
    res.sendFile(path.resolve(__dirname, 'dist', 'index.html'));
  });
  
  // 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;
  