text: // server.js
  const express = require('express');
  const expressGraphql = require('express-graphql');
  const app = express();
  
  const schema = require('./schema');
  app.use('/graphql', expressGraphql({
  	schema,
  	graphiql: true
  }));
  
  app.get('/', (req, res) => res.end('index'));
  
  app.listen(8000, (err) => {
    if(err) {throw new Error(err);}
    console.log('*** server started ***');
  });
  