今日のうんちは何かな？ https://shindanmaker.com/518611

うんち.js

const crypto = require('crypto');
const cheerio = require('cheerio');
const fetch = require('node-fetch');
const FormData = require('form-data');

function fetchUntilMatch(postInterval = 500) {
  const input = crypto.randomBytes(8).toString('hex');
  fetchResult(input)
    .then(result => {
      console.log(`${input} => ${result}`);
      if (!result.startsWith('うんち')) {
        setTimeout(() => fetchUntilMatch(postInterval), postInterval);
      }
    });
}

function fetchResult(input) {
  const fd = new FormData();
  fd.append('u', input)
  return fetch('https://shindanmaker.com/518611', {
    method: 'POST',
    body: fd,
    headers: fd.getHeaders()
  }).then(res => res.text())
    .then(html => cheerio.load(html))
    .then($ => $('.result2').text().trim());
}

fetchUntilMatch(500);