98 lines
4.3 KiB
JavaScript
98 lines
4.3 KiB
JavaScript
const axios = require("axios");
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const utils = require("./utils");
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const conversions = {
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g: { unit: "g", factor: 1 },
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kg: { unit: "g", factor: 1000 },
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l: { unit: "ml", factor: 1000 },
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ml: { unit: "ml", factor: 1 },
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St: { unit: "stk", factor: 1 },
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Wl: { unit: "wg", factor: 1 },
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m: { unit: "cm", factor: 100 },
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mm: { unit: "cm", factor: 0.1 },
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Bl: { unit: "stk", factor: 1 },
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Btl: { unit: "stk", factor: 1 },
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Paar: { unit: "stk", factor: 1 },
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Portion: { unit: "stk", factor: 1 },
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Satz: { unit: "stk", factor: 1 },
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Tablette: { unit: "stk", factor: 1 },
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};
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exports.getCanonical = function (item, today) {
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let quantity = item.netQuantityContent || item.basePriceQuantity;
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let unit = item.contentUnit || item.basePriceUnit;
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return utils.convertUnit(
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{
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id: item.gtin,
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name: `${item.brandName} ${item.title}`,
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price: item.price.value,
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priceHistory: [{ date: today, price: item.price.value }],
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unit,
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quantity,
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...((item.brandName === "dmBio" || (item.name ? item.name.startsWith("Bio ") | item.name.startsWith("Bio-") : false)) && { bio: true }),
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url: `https://www.dm.at/product-p${item.gtin}.html`,
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},
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conversions,
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"dm"
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);
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};
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exports.fetchData = async function () {
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const DM_BASE_URL = `https://product-search.services.dmtech.com/at/search/crawl?pageSize=1000&`;
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const QUERIES = [
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"allCategories.id=010000&price.value.to=2", //~500 items
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"allCategories.id=010000&price.value.from=2&price.value.to=3", //~600 items
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"allCategories.id=010000&price.value.from=3&price.value.to=4", //~500 items
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"allCategories.id=010000&price.value.from=4&price.value.to=7", //~800 items
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"allCategories.id=010000&price.value.from=7&price.value.to=10", //~900 items
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"allCategories.id=010000&price.value.from=10&price.value.to=15", //~900 items
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"allCategories.id=010000&price.value.from=15", //~300 items
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"allCategories.id=020000&price.value.to=2", //~600 items
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"allCategories.id=020000&price.value.from=2&price.value.to=3", //~550 items
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"allCategories.id=020000&price.value.from=3&price.value.to=4", //~600 items
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"allCategories.id=020000&price.value.from=4&price.value.to=6", //~800 items
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"allCategories.id=020000&price.value.from=6&price.value.to=10", //~850 items
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"allCategories.id=020000&price.value.from=10&price.value.to=18", //~900 items
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"allCategories.id=020000&price.value.from=18", //~960 items (!)
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"allCategories.id=030000&price.value.to=8", //~900 items
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"allCategories.id=030000&price.value.from=8", //~500 items
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"allCategories.id=040000&price.value.to=2", //~600 items
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"allCategories.id=040000&price.value.from=2&price.value.to=4", //~900 items
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"allCategories.id=040000&price.value.from=4", //~400 items
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"allCategories.id=050000&price.value.to=4", //~600 items
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"allCategories.id=050000&price.value.from=4", //~800 items
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"allCategories.id=060000&price.value.to=4", //~900 items
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"allCategories.id=060000&price.value.from=4", //~500 items
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"allCategories.id=070000", //~300 items
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];
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let dmItems = [];
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for (let query of QUERIES) {
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var res = await axios.get(DM_BASE_URL + query, {
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validateStatus: function (status) {
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return (status >= 200 && status < 300) || status == 429;
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},
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});
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// exponential backoff
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backoff = 2000;
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while (res.status == 429) {
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console.info(`DM API returned 429, retrying in ${backoff / 1000}s.`);
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await new Promise((resolve) => setTimeout(resolve, backoff));
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backoff *= 2;
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res = await axios.get(DM_BASE_URL + query, {
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validateStatus: function (status) {
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return (status >= 200 && status < 300) || status == 429;
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},
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});
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}
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let items = res.data;
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if (items.count > 1000) {
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console.warn(`Query returned more than 1000 items! Items may be missing. Adjust queries. Query: ${query}`);
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}
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dmItems = dmItems.concat(items.products);
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await new Promise((resolve) => setTimeout(resolve, 1000));
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}
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return dmItems;
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};
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