Download all pay slips and tax documents from ADP

download-adp-files.js

/*
1. Open https://my.adp.com/v1_0/O/A/workerTaxStatements in a browser and log in (make sure you are NOT in Incognito or InPrivate mode)
2. Open the browser Developer Tools Java Console (Ctrl+Shift+J or F12 -> Console)
3. Run the code below in the console (paste and press Enter)
4. Wait for the zip file to be downloaded
*/

var script = document.createElement('script');
script.src = 'https://cdnjs.cloudflare.com/ajax/libs/jszip/3.2.0/jszip.min.js';
script.onload = async function() {
    var zip = new JSZip();
    
    var resp = await fetch ('https://my.adp.com/v1_0/O/A/workerTaxStatements');
    var jsonData = await resp.json();
    var count = jsonData.workerTaxStatements.length;
    for (var i = count - 1; i >= 0; --i) {
        var index = count - i;
        var entry = jsonData.workerTaxStatements[i];
        var year = entry.statementYear.year.replace("/","-")
        var url = "https://my.adp.com" + entry.statementImageUri.href.substring(3);

        console.log("Fetching statement " + index + " of " + count + " - " + entry.form.code );
        const blob = await fetch(url)
        .then(function (response) {
            if (response.ok) {
                zip.folder('TaxDocuments').folder(year).file(entry.form.code.replace('/', '-') + ".pdf", response.blob())
            } else {
                return Promise.reject(response);
            }
        }).catch(function (err) {
            console.warn('Error retrieving statement');
        });
    }

    var resp = await fetch ('https://my.adp.com/v1_0/O/A/payStatements');
    var jsonData = await resp.json();
    var count = jsonData.payStatements.length;
    for (var i = count - 1; i >= 0; --i) {
        var index = count - i;
        var entry = jsonData.payStatements[i];
        var date = entry.payDate
        var year = entry.payDate.split("-")[0]
        var url = "https://my.adp.com" + entry.statementImageUri.href.substring(3);

        console.log("Fetching payslip " + index + " of " + count + " - " + date);
        
        const blob = await fetch(url)
        .then(function (response) {
            if (response.ok) {
                zip.folder('Payslips').folder(year).file(date + ".pdf", response.blob())
            } else {
                return Promise.reject(response);
            }
        }).catch(function (err) {
            console.warn('Error retrieving statement');
        });
    }

    console.log('Preparing to download zip file - be patient, it can take a minute');
    zip.generateAsync({type : 'base64'}).then(function (base64) {
        var a = document.createElement('a');
        a.download = 'ADP_Download.zip'; 
        a.href = "data:application/zip;base64," + base64;
        document.body.appendChild(a);
        a.click();
        console.log('Finished');
    });
}

document.head.appendChild(script);