egypt-banks-scraper/src/banks/ABE.js

Scrape exchange rates from Egypt banks

/* eslint class-methods-use-this: ["error", { "exceptMethods": ["scraper"] }] */

import cheerio from 'cheerio';

import Bank from './Bank';

import { banksNames } from './banks_names';

export default class ABE extends Bank {
  constructor() {
    const url = 'https://www.abe.com.eg/index.php/en/2017-03-02-08-57-42';
    const selector = 'table tbody tr';
    super(banksNames.ABE, url, selector);
  }

  static getCurrencyCode(name) {
    const dict = {
      'US DOLLAR': 'USD',
      EURO: 'EUR',
      'POUND STERLING': 'GBP',
      'SAUDI RIALS': 'SAR',
    };
    return (dict[name]);
  }

  /**
   * Scrape rates from html
   * @param {Object} html html of bank web page to scrape
   */
  scraper(html) {
    const $ = cheerio.load(html);
    // const tableRows = $('table tbody tr');
    const tableRows = $('table tbody').eq(0).children();

    const rates = [];
    tableRows.each((index, row) => {
      if (index === 0) return;
      const currencyName = $(row)
        .children()
        .eq(2)
        .text()
        .trim();
      const buyRate = $(row)
        .children()
        .eq(1)
        .text()
        .trim();
      const sellRate = $(row)
        .children()
        .eq(0)
        .text()
        .trim();

      if (Number(buyRate) === 0 || Number(sellRate) === 0) return;
      rates.push({
        code: ABE.getCurrencyCode(currencyName),
        buy: Number(buyRate),
        sell: Number(sellRate),
      });
    });
    return rates;
  }
}