mercari/dist/mercari.js

Scraper for JP site 'mercari' to check for stuff

"use strict";
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
    function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
    return new (P || (P = Promise))(function (resolve, reject) {
        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
        function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
        step((generator = generator.apply(thisArg, _arguments || [])).next());
    });
};
var __generator = (this && this.__generator) || function (thisArg, body) {
    var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
    return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
    function verb(n) { return function (v) { return step([n, v]); }; }
    function step(op) {
        if (f) throw new TypeError("Generator is already executing.");
        while (_) try {
            if (f = 1, y && (t = op[0] & 2 ? y["return"] : op[0] ? y["throw"] || ((t = y["return"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;
            if (y = 0, t) op = [op[0] & 2, t.value];
            switch (op[0]) {
                case 0: case 1: t = op; break;
                case 4: _.label++; return { value: op[1], done: false };
                case 5: _.label++; y = op[1]; op = [0]; continue;
                case 7: op = _.ops.pop(); _.trys.pop(); continue;
                default:
                    if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
                    if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
                    if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }
                    if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
                    if (t[2]) _.ops.pop();
                    _.trys.pop(); continue;
            }
            op = body.call(thisArg, _);
        } catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
        if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
    }
};
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
var x_ray_1 = __importDefault(require("x-ray"));
var qs_1 = __importDefault(require("qs"));
var x = x_ray_1.default({
    filters: {
        trim: function (value) { return (typeof value === "string" ? value.trim() : value); },
        priceFind: function (value) {
            return typeof value === "string" ? value.replace(/[^0-9]/g, "") : value;
        },
        parseInt: function (value) { return (typeof value === "string" ? Number(value) : value); },
        parseProductCode: function (value) {
            if (typeof value !== "string") {
                return value;
            }
            var match = value.match(/\/jp\/items\/(.*?)\//);
            if (!match)
                return value;
            return match[1];
        },
        proxy: function (value) { return (typeof value === "string" ? makeProxyURL(value) : value); },
        formImageUrl: function (productCode) {
            return "https://www.suruga-ya.jp/pics/boxart_m/" + productCode + "m.jpg";
        },
        makeProductUrl: function (value) {
            if (typeof value !== "string") {
                return value;
            }
            return baseURL + "items/" + value;
        },
    },
});
var defaultOptions = {
    maxPages: Infinity,
};
var baseURL = "https://www.mercari.com/jp/";
var searchURL = baseURL + "search/";
function search(query, options) {
    if (options === void 0) { options = defaultOptions; }
    return __awaiter(this, void 0, void 0, function () {
        var data, mercariURL, results;
        return __generator(this, function (_a) {
            switch (_a.label) {
                case 0:
                    data = {
                        keyword: query,
                        page: 1,
                        status_on_sale: 1,
                    };
                    mercariURL = searchURL + "?" + qs_1.default.stringify(data);
                    return [4 /*yield*/, x(makeProxyURL(mercariURL), ".items-box", [
                            {
                                productURL: "a@href | parseProductCode | makeProductUrl",
                                imageURL: "img@data-src",
                                productName: ".items-box-name",
                                price: ".items-box-price | priceFind | parseInt",
                                productCode: "a@href | parseProductCode",
                            },
                        ])
                            .paginate(".items-box a@href | proxy")
                            .limit(options.maxPages)];
                case 1:
                    results = _a.sent();
                    return [2 /*return*/, results];
            }
        });
    });
}
exports.search = search;
var makeProxyURL = function (url) {
    return getRandomGoogleProxyURL() + escape(url);
};
var getRandomGoogleProxyURL = function () {
    var maxProxies = 32;
    var idx = Math.floor(Math.random() * maxProxies);
    return "https://images" + idx + "-focus-opensocial.googleusercontent.com/gadgets/proxy?container=none&url=";
};