get data from bamosz.hu

GetBamoszData.js

const rq = require("http");
const url = "http://www.bamosz.hu/alapoldal?isin=HU0000711353";
const htmlParser = require("htmlparser");


const parseHtml = function(html) {
  return new Promise((resolve, reject) => {
    (new htmlParser.Parser(
      new htmlParser.DefaultHandler(
        (error, dom) => {
          if (error) reject(error);
          else resolve(dom);
        }))).parseComplete(html);
  })
}

rq.get(url, res => {
  const { statusCode } = res;
  if (statusCode !== 200) {
    console.error("Failed: " + statusCode);
    res.resume();
    return;
  } else {
    console.info("status 200");
  }
  res.setEncoding("utf-8");
  let rawData = "";
  res.on("data", chunk => rawData += chunk);
  res.on("end", () => {
    const htmlData = parseHtml(rawData)
      .then(html => {
        const documentRoot = html.find(tag => tag.name==="html");
        const childReducer = function(collection, current) {
          // each child may have a children property, with further ancestors - also to be appended to the collection
          collection.push(current);
          if (current.children) current.children.forEach(childNode => childReducer(collection, childNode))
          return collection;
        };
        const childCollection = documentRoot.children.reduce(childReducer, []);
        console.log(
          childCollection.filter(child => child.name == "table"));
      
      })
      .catch(e => console.error(e));
    
  });

});