// graphql_rate_limit_server.js - GraphQL with naive rate limiter
const express = require('express');
const { graphqlHTTP } = require('express-graphql');
const { buildSchema } = require('graphql');

const schema = buildSchema(`
  type Query {
    secret: String
  }
`);

let requestCount = 0;
const rateLimit = (req, res, next) => {
    requestCount++;
    if (requestCount > 5) {
        return res.status(429).send('Rate limit exceeded');
    }
    next();
};

const root = { secret: () => 'SuperSecretData' };

const app = express();
app.use(rateLimit);
app.use('/graphql', graphqlHTTP({ schema, rootValue: root, graphiql: true }));
app.listen(4000, () => console.log('GraphQL on :4000'));