Amazon購入履歴のCSVエクスポート (2017 年バージョン)

amazon-calc.js

// Amazon購入履歴のCSVエクスポート
//
// 使い方: 
//   1. 全部コピーする (右上の Raw をクリックした先でやるのが楽)
//   2. Amazon の注文履歴ページ ( https://www.amazon.co.jp/gp/css/order-history/ ) を開く
//   3. F12 または 右クリ→要素の検証 とかで出てくる開発者ツールのコンソール (JavaScript REPL) にペースト
//   4. エンターで実行
//      (Firefox はなんか allow pasting とタイプしろみたいなことを言われるので従う)
//   5. しばらく待つと、コンソールに合計金額が表示され、CSVが保存される
//
// 2014-12-28 / 2016-05-10 時点での DOM 構造に対応, Firefox と Chrome でテスト済
// 2017-02-18 CSV保存機能の追加

(function(){
    var itemDelimiter = '\r\n';
    var total = {};
    var year = '2017';
    var all = false;
    
    function init(num) {
        if(typeof num !== 'number') {
            var num = 0;
            year = window.prompt('何年分の注文を集計しますか？\n - 半角数字4桁で入力してください', year);
            year = Number(year);
        }
        // 第二引数を true にすると各商品とかエラーを逐一表示する
        var progress = load(num, false);
        console.log(year + '年の集計中…  / ' + (num+1) + 'ページ目');
        progress.done(function(results){
            if (typeof total[year] ===  'undefined') {
                total[year] = results;
            } else {
                total[year] = total[year].concat(results);
            }
            init(num+1);
        }).fail(function(){
            if(all && new Date().getFullYear() > year) {
                year++;
                init(0);
            } else {
                var _total = 0;
                var _result;
                jQuery.each(total, function(year, results){
                    var yen = 0;
                    jQuery.each(results, function(){
                        yen += this.price;
                    });
                    _total += yen;
                    _result = results;
                });
                // result
                console.log('合計 ' + _total + ' 円');
                download('amazon_report_'+year+'.csv',convertTocsv(_result));
            }
        });
    }
    
    function load(num, verbose) {
        var df = jQuery.Deferred();
        var page = get(num, verbose);
        page.done(function(data){
            var dom = jQuery.parseHTML(data);
            var results = [];

            jQuery(dom).find('div.order').each(function(){
                var box = jQuery(this);

                var dateText = jQuery(box.find('div.order-info span.value')[0]).text();
                var datePattern = new RegExp("(\\d{4})年(\\d{1,2})月(\\d{1,2})日");
                dateText.match(datePattern);
                var year = RegExp.$1;
                var month = RegExp.$2; if (month.length <= 1) month = "0" + month;
                var day = RegExp.$3; if (day.length <= 1) day = "0" + day;
                var date = "" + year + "年" + month + "月" + day　+ "日";

                var orderNum = jQuery(box.find('div.order-info span.value')[2]).text().trim();
                var orderDetailURL = jQuery(box.find('div.order-info a.a-link-normal')[0]).attr('href');
                if(orderDetailURL!=undefined){
                    orderDetailURL='https://www.amazon.co.jp'+orderDetailURL;
                }
                else {
                    orderDetailURL = 'N/A';
                }

                var items = [];
                box.find('div.a-row>a.a-link-normal').each(function(){
                    var itemName = jQuery(this).text().trim();
                    var itemPrice = jQuery(this).parent().parent().find('div.a-row>span.a-color-price').text().trim();
                    items.push('['+itemPrice+'] '+itemName);
                });
                var item = items.join(itemDelimiter);

                var priceText = jQuery(box.find('div.order-info span.value')[1]).text();
                var price = Number(priceText.match(/[0-9]/g).join(''));

                if (verbose) console.log(item, price);
                results.push({'date':date, 'orderNumber':orderNum, 'price':price, 'item':item, 'orderDetailURL':orderDetailURL});
            });

            if(results.length <= 0) df.reject();
            else df.resolve(results);
        });
        return df.promise();
    }
    

    function get(num) {
        var df = jQuery.Deferred();
        jQuery.ajax({
            url: 'https://www.amazon.co.jp/gp/css/order-history?digitalOrders=1&unifiedOrders=1&orderFilter=year-'+year+'&startIndex='+num*10,
            beforeSend: function (xhr){
                xhr.setRequestHeader('X-Requested-With', {toString: function(){ return ''; }});
            },
        })
            .success(function(data){
                df.resolve(data);
            })
            .fail(function(jqXHR, msg){
                if (verbose) console.log("fail", msg);
            });
        return df.promise();
    }


    function convertTocsv(array) {
        var str = '';
        for (var i = 0; i < array.length; i++) {
            if (str == '') {
                var title = '';
                for (var it in array[i]) {
                    if (title !== '') title += ',';
                    title += '"' + it + '"';
                }
                str += '\ufeff'+title + '\r\n';
            }
            var line = '';
            for (var it in array[i]) {
                if (line !== '') line += ',';
                line += '"' + array[i][it] + '"';
            }
            str += line + '\r\n';
        }
        return str;
    }
    
    //http://stackoverflow.com/questions/2897619/using-html5-javascript-to-generate-and-save-a-file
    function download(filename, text) {
        var pom = document.createElement('a');
        pom.setAttribute('href', 'data:text/plain;charset=utf-8,' + encodeURIComponent(text));
        pom.setAttribute('download', filename);

        if (document.createEvent) {
            var event = document.createEvent('MouseEvents');
            event.initEvent('click', true, true);
            pom.dispatchEvent(event);
        }
        else {
            pom.click();
        }
    }    

    if(typeof jQuery !== 'function') {
        var d=document;
        var s=d.createElement('script');
        s.src='//ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js';
        s.onload=init;
        d.body.appendChild(s);
    } else {
        init();
    }
})();

Hello l-rutong,
Thank you for the quick response and your feedback.
Unfortunately I am not able to rewrite the code. Do you have a hint where to search if you need a CSV file of your amazon order history for Japanese Amazon?

Any hints would be more than welcome.
Thank you..

There's a chrome extension doing similar thing,
https://chrome.google.com/webstore/detail/%E3%82%A2%E3%83%9E%E3%82%BE%E3%83%B3%E6%B3%A8%E6%96%87%E5%B1%A5%E6%AD%B4%E3%83%95%E3%82%A3%E3%83%AB%E3%82%BF/jaikhcpoplnhinlglnkmihfdlbamhgig

but seems they are suffering from the same problem now. (it appears that Amazon has changed the page layout last Dec).
The developer of this extension is aware of the problem and hopefully they will fix it in near future.

FYI, Amazon Business has official support for exporting purchase history and invoices.

Great! Thanks a lot for your hint. 👍
I will check from time to time if new version is available which support current Amazon.jp page layout :-).