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const express = require('express');
const fs = require('fs').promises;
const path = require('path');

const app = express();
app.use(express.json());

const HTTP_OK_STATUS = 200;
const PORT = process.env.PORT || '3001';

// não remova esse endpoint, e para o avaliador funcionar
app.get('/', (_request, response) => {
  response.status(HTTP_OK_STATUS).send();
});

app.get('/talker', async (_request, response) => {
  const talkers = await fs.readFile(path.join(__dirname, 'talker.json'), 'utf-8');
  const talkersJson = JSON.parse(talkers);

  if (!talkersJson) return response.status(200).json([]);

  return response.status(200).json(talkersJson);
});

app.listen(PORT, () => {
  console.log('Online');
});