Covid19 cheerio Example

index.js

// USAGE:
// mkdir coronavirusAPI && cd coronavirusAPI
// yarn init -y
// wget https://www.worldometers.info/coronavirus/
// mv index.html sample.html
// node index.js
var fs = require('fs');
const cheerio = require('cheerio');

const content = fs.readFileSync('sample.html', 'utf8');
const $ = cheerio.load(content);

const mainNumbers = ($) => {
  const mainValues = $('.maincounter-number');
  const coronavirusCases = mainValues.eq(0).text().trim();
  const deaths = mainValues.eq(1).text().trim();
  const recovered = mainValues.eq(2).text().trim();

  const result = {
    coronavirusCases, 
    deaths, 
    recovered
  };
  return result;
}

const casesCardsNumbers = ($) => {
  const casesCardsMainValues = $('.number-table-main');
  const casesCardsSecondaryValues = $('.panel-front, .number-table');
  const currentlyInfectedPatients = $(casesCardsMainValues).eq(0).text().trim();
  const casesWhichHadAnOutcome = $(casesCardsMainValues).eq(1).text().trim();
  const inMildCondition = $(casesCardsSecondaryValues).eq(0).text().trim();
  const inMildConditionPercent = $(casesCardsSecondaryValues).eq(0).next().text().trim();
  const seriousOrCritical = $(casesCardsSecondaryValues).eq(1).text().trim();
  const seriousOrCriticalPercent = $(casesCardsSecondaryValues).eq(1).next().text().trim();
  const recoveredDischarged = $(casesCardsSecondaryValues).eq(2).text().trim();
  const recoveredDischargedPercent = $(casesCardsSecondaryValues).eq(2).next().text().trim();
  const deaths = $(casesCardsSecondaryValues).eq(3).text().trim();
  const deathsPercent = $(casesCardsSecondaryValues).eq(3).next().text().trim();
  const result = {
    currentlyInfectedPatients, 
    casesWhichHadAnOutcome, 
    inMildCondition, 
    inMildConditionPercent, 
    seriousOrCritical, 
    seriousOrCriticalPercent,
    recoveredDischarged,
    recoveredDischargedPercent,
    deaths,
    deathsPercent
  };
  return result;
}

const activeCases = ($) => {
  const dom = $('script').get()[20].children[0].data
  const categories = eval(dom.match(/categories: \[(\s?"(\w|\s)+",?)+\]/g)[0]); 
  const data = eval(dom.match(/data: \[(\s?(\d|\s)+,?)+\]/g)[0]); 
  return { categories, data };
}


const closedCases = ($) => {
  const dom = $('script').get()[21].children[0].data
  const categories = eval(dom.match(/categories: \[(\s?"(\w|\s)+",?)+\]/g)[0]); 
  const deathRate = eval(dom.match(/data: \[(\s?(\d+.\d|\s)+,?)+\]/g)[0]); 
  const recoveryRate = eval(dom.match(/data: \[(\s?(\d+.\d|\s)+,?)+\]/g)[1]); 
  return { categories, deathRate, recoveryRate };
}

const totalCasesLinear = ($) => {
  const dom = $('script').get()[22].children[0].data
  const categories = eval(dom.match(/categories: \[(\s?"(\w|\s)+",?)+\]/g)[0]); 
  const data = eval(dom.match(/data: \[(\s?(\d|\s)+,?)+\]/g)[0]); 
  return { categories, data };
}

// Same values as above
// const totalCasesLogarithmic = ($) => {
//   const dom = $('script').get()[23].children[0].data
//   const categories = eval(dom.match(/categories: \[(\s?"(\w|\s)+",?)+\]/g)[0]); 
//   const data = eval(dom.match(/data: \[(\s?(\d|\s)+,?)+\]/g)[0]); 
//   return { 'categories': categories, 'data': data };
// }
const totalDeathsLinear = ($) => {
  const dom = $('script').get()[24].children[0].data;
  const categories = eval(dom.match(/categories: \[(\s?"(\w|\s)+",?)+\]/g)[0]); 
  const data = eval(dom.match(/data: \[(\s?(\d|\s)+,?)+\]/g)[0]); 
  return { categories, data };
}

// Same values as above
// const totalDeathsLogarithmic = ($) => {
//   const dom = $('script').get()[25].children[0].data;
//   const categories = eval(dom.match(/categories: \[(\s?"(\w|\s)+",?)+\]/g)[0]); 
//   const data = eval(dom.match(/data: \[(\s?(\d|\s)+,?)+\]/g)[0]); 
//   return { 'categories': categories, 'data': data };
// }


const tableData = ($) => {
  const countries = [];
  const rows = $('table#main_table_countries tbody tr');
  for (var i = 0; i < rows.length; i++) {
    var row = $(rows).eq(i);
    var children = $(row).children('td');
    var country         = children.eq(0).text().trim();
    var totalCases      = children.eq(1).text().trim();
    var newCases        = children.eq(2).text().trim();
    var totalDeaths     = children.eq(3).text().trim();
    var newDeaths       = children.eq(4).text().trim();
    var totalRecovered  = children.eq(5).text().trim();
    var activeCases     = children.eq(6).text().trim();
    var criticalCases   = children.eq(7).text().trim();
    var totalCasesIn1m  = children.eq(8).text().trim();
    countries.push(
      {
        country: country,
        totalCases: totalCases,
        newCases: newCases,
        totalDeaths: totalDeaths,
        newDeaths: newDeaths,
        totalRecovered: totalRecovered,
        activeCases: activeCases,
        criticalCases: criticalCases,
        totalCasesIn1m: totalCasesIn1m,
      }
    );
  }
  return countries;
}

console.log(mainNumbers($));