node-twstock/lib/scrapers/isin-scraper.js

A client library for scraping Taiwan stock market data

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.IsinScraper = void 0;
const cheerio = require("cheerio");
const iconv = require("iconv-lite");
const luxon_1 = require("luxon");
const scraper_1 = require("./scraper");
const utils_1 = require("../utils");
class IsinScraper extends scraper_1.Scraper {
    async fetchListed(options) {
        const { symbol } = options;
        const url = `https://isin.twse.com.tw/isin/single_main.jsp?owncode=${symbol}`;
        const response = await this.httpService.get(url, { responseType: 'arraybuffer' });
        const page = iconv.decode(response.data, 'big5');
        const $ = cheerio.load(page);
        const data = $('.h4 tr').slice(1).map((_, el) => {
            const td = $(el).find('td');
            return {
                symbol: td.eq(2).text().trim(),
                name: td.eq(3).text().trim(),
                exchange: (0, utils_1.asExchange)(td.eq(4).text().trim()),
                type: td.eq(5).text().trim(),
                industry: (0, utils_1.asIndustry)(td.eq(6).text().trim()),
                listedDate: luxon_1.DateTime.fromFormat(td.eq(7).text().trim(), 'yyyy/MM/dd').toISODate(),
            };
        }).toArray();
        return data;
    }
    async fetchListedStocks(options) {
        const { exchange } = options;
        const url = {
            'TWSE': 'https://isin.twse.com.tw/isin/class_main.jsp?market=1',
            'TPEx': 'https://isin.twse.com.tw/isin/class_main.jsp?market=2',
        };
        const response = await this.httpService.get(url[exchange], { responseType: 'arraybuffer' });
        const page = iconv.decode(response.data, 'big5');
        const $ = cheerio.load(page);
        const data = $('.h4 tr').slice(1).map((_, el) => {
            const td = $(el).find('td');
            return {
                symbol: td.eq(2).text().trim(),
                name: td.eq(3).text().trim(),
                exchange: (0, utils_1.asExchange)(td.eq(4).text().trim()),
                type: td.eq(5).text().trim(),
                industry: (0, utils_1.asIndustry)(td.eq(6).text().trim()),
                listedDate: luxon_1.DateTime.fromFormat(td.eq(7).text().trim(), 'yyyy/MM/dd').toISODate(),
            };
        }).toArray();
        return data;
    }
    async fetchListedFutOpt(options) {
        const { type } = options !== null && options !== void 0 ? options : {};
        const url = 'https://isin.twse.com.tw/isin/class_main.jsp?market=7';
        const response = await this.httpService.get(url, { responseType: 'arraybuffer' });
        const page = iconv.decode(response.data, 'big5');
        const $ = cheerio.load(page);
        const data = $('.h4 tr').slice(1).map((_, el) => {
            const td = $(el).find('td');
            return {
                symbol: td.eq(2).text().trim(),
                name: td.eq(3).text().trim(),
                exchange: (0, utils_1.asExchange)(td.eq(4).text().trim()),
                type: td.eq(5).text().trim(),
                listedDate: luxon_1.DateTime.fromFormat(td.eq(7).text().trim(), 'yyyy/MM/dd').toISODate(),
            };
        }).toArray();
        return data.filter(row => {
            if (type === 'F')
                return row.type.includes('期貨');
            if (type === 'O')
                return row.type.includes('選擇權');
            return true;
        });
    }
}
exports.IsinScraper = IsinScraper;