差分

このページの2つのバージョン間の差分を表示します。

--- nodejs:scraping [2023/11/23 17:23] – mikoto
+++ nodejs:scraping [2023/12/18 20:48] (現在) – mikoto
@@ 行 14: / 行 14: @@
 const axios = require('axios');
 const cheerio = require('cheerio');
-// スクレイピング対象のURL
-const url = 'https://announce.wowma.jp/';
 // Slack Incoming WebhooksのURLを設定
@@ 行 71: / 行 68: @@
 <code>
 npm run start
+</code>
+==== 進行中のコード ====
+<code javascript>
+// index.js
+const axios = require('axios');
+const cheerio = require('cheerio');
+const fs = require('fs');
+const csv = require('csv-parser');
+const createCsvWriter = require('csv-writer').createObjectCsvWriter;
+// スクレイピング対象のURL
+//const url = 'https://www.amazon.co.jp/dp/B0B3LQH6CR';
+const urls = [
+// URLs
+];
+const data = [];
+const csvWriter = createCsvWriter({
+  path: 'output.csv',
+  encoding: 'utf8',
+  header: [
+      { id: 'url', title: 'URL' },
+      { id: 'price', title: 'Price' },
+      { id: 'stock', title: 'Stock' }
+  ]
+});
+// Axios header
+const headers = {
+  //'Accept-Language': 'en-US;q=0.9,en;q=0.8',
+  'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36'
+}
+// 非同期処理を扱うためにasync functionを使用
+async function fetchData() {
+  for (const url of urls) {
+    let price = '';
+    let stock = '';
+    try {
+      const response = await axios.get(url, { headers, timeout: 20000 });
+      const $ = cheerio.load(response.data);
+      if (url.includes('www.amazon.co.jp')) {
+        const priceElement = $('#centerCol').find('#corePriceDisplay_desktop_feature_div').find('span.a-price-whole');
+        if (priceElement.length > 0) {
+          price = priceElement.html().trim();
+        } else {
+          price = '';
+        }
+        const stockInputElement = $('div.a-button-stack').find('input');
+        if (stockInputElement.length > 0 ) {
+          // Value属性の値を取得
+          const valueAttribute = stockInputElement.attr('value');
+          if (valueAttribute === 'カートに入れる') {
+            stock = 'あり';
+          } else {
+            stock = 'なし';
+          }
+        } else {
+          stock = 'なし';
+        }
+      } else if (url.includes('shopdisney.disney.co.jp')) {
+              // 価格を取得
+        price = $('body > div.page > main > div:nth-child(9) > div.product-detail.product-detail__section-bound.product-wrapper.rating--unavailable > div.product-detail__inner-container > div:nth-child(1)')
+        .find('div.price').find('span.value').attr('content');
+        // 在庫状況を確認
+        const addToCartBtn = $('body > div.page > main > div:nth-child(9) > div.product-detail.product-detail__section-bound.product-wrapper.rating--unavailable > div.product-detail__inner-container > div.col-12.col-sm-12.col-md-6.col-lg-4.col-xl-3.product-detail__content-summary.product-detail__content-summary--details.product-detail__content-summary--name > div > div.col-12.prices-add-to-cart-actions > div > div:nth-child(1) > button')
+        .find('span.btn').children('span').text().trim();
+        if (addToCartBtn === 'カートに入れる') {
+          stock = 'あり';
+        } else {
+          stock = 'なし';
+        }
+      } else if (url.includes('item.rakuten.co.jp')) {
+        price = $('#rakutenLimitedId_cart').find('#priceCalculationConfig').attr('data-price');
+        const addToCartBtn = $('#AddToCartPurchaseButtonFixed').find('button[aria-label="カートに追加"]');
+        const isDisabled = addToCartBtn.prop('disabled') !== undefined || addToCartBtn.attr('disabled') !== undefined;
+        if (isDisabled) {
+          stock = 'なし';
+        } else {
+          stock = 'あり';
+        }
+      } else if (url.includes('www.suruga-ya.jp/product/detail')){
+        const priceGroupEl = $('body > div.dialog-off-canvas-main-canvas > div.container_suru.padB40 > div:nth-child(9) > div.col-8.padL32 > div.d-flex.justify-content-start > div.w-70.pr-5 > div.price_group.mb-3');
+        const priceWithoutCamma = priceGroupEl.find('span.text-price-detail.price-buy').text().replace(/,/g, '');
+        price = parseInt(priceWithoutCamma, 10);
+        stock = 'あり'
+      }
+      else if (url.includes('ec.treasure-f.com/item')) {
+        const itemElRight = $('body > main > div.main > div.clearfix > div.item-detail-area-right');
+        const itempriceArea = itemElRight.find('.item-detail-area-right-price');
+        const priceCurrency = itempriceArea.children('p').find('.disp-tax-in').text().replace(/[^\d]/g, '');
+        price = parseInt(priceCurrency, 10);
+        console.log(price);
+        const addToCartBtnEl = itemElRight.find('#item-submitform').find('#item-cartbutton');
+        if (addToCartBtnEl.length > 0) {
+          stock = 'あり';
+        } else {
+          stock = 'なし';
+        }
+      } else if (url.includes('item.fril.jp')) {
+        const price = $('body > div.drawer-overlay > div.container.new-rakuma > div > div.col-lg-12.col-md-12.col-sm-12.col-xs-12 > div.row > div > article > div > div.col-lg-5.col-md-5.col-sm-12.col-xs-12.right-section > section > div.item-info__header > div:nth-child(2) > div > p > span.item__price')
+          .text().replace(/[^\d]/g, '');
+        const sellBtnEl = $('body > div.drawer-overlay > div.container.new-rakuma > div > div.col-lg-12.col-md-12.col-sm-12.col-xs-12 > div.row > div > article > div > div.col-lg-5.col-md-5.col-sm-12.col-xs-12.right-section > section > div:nth-child(4) > div > div.btn-buy-fixed.clearfix > p.sell-btn-fixed');
+        if (sellBtnEl.length > 0) {
+          stock = 'あり';
+        } else {
+          stock = 'なし';
+        }
+      } else {
+        price = '';
+        stock = '';
+      }
+      data.push({ url, price, stock });
+      console.log(data);
+    } catch (error) {
+      console.error('エラー:', error);
+      data.push({ url, price, stock });
+    }
+  }
+ // 全ての非同期処理が完了した後にCSVに書き込み
+  await csvWriter.writeRecords(data);
+  console.log('CSVにデータが書き込まれました。');
+}
+// fetchDataを呼び出し
+fetchData();
 </code>