Automatically download QFX statements from Chase
// ==UserScript==
// @name Chase QFX Statement Downloader
// @namespace Violentmonkey Scripts
// @license MIT
// @version 1.1
// @description Automatically download QFX statements from Chase
// @match https://*.chase.com/*
// @grant GM_download
// @grant GM_xmlhttpRequest
// ==/UserScript==
(function () {
'use strict';
// src/common.ts
async function getElement(selector, POLL_INTERVAL) {
return new Promise((resolve) => {
const check = setInterval(() => {
let el;
if (typeof selector === "string") {
el = document.querySelector(selector);
} else {
el = Array.from(selector).map((s) => document.querySelector(s)).find(Boolean);
}
if (el) {
clearInterval(check);
resolve(el);
}
}, POLL_INTERVAL);
});
}
async function getWindowProperty(property, POLL_INTERVAL) {
return new Promise((resolve) => {
const check = setInterval(() => {
const el = property(window.unsafeWindow);
if (el) {
clearInterval(check);
resolve(el);
}
}, POLL_INTERVAL);
});
}
async function getByPoll(property, POLL_INTERVAL) {
return new Promise((resolve) => {
const check = setInterval(() => {
const el = property();
if (el) {
clearInterval(check);
resolve(el);
}
}, POLL_INTERVAL);
});
}
function formatDateYYYYMMDD(date) {
return `${date.getFullYear()}${(date.getMonth() + 1).toString().padStart(2, "0")}${date.getDate().toString().padStart(2, "0")}`;
}
function getDateRange(today, endOnBusiness = false) {
let date = new Date(today);
if (endOnBusiness) {
if (date.getDay() === 0) {
date.setDate(date.getDate() - 2);
} else if (date.getDay() === 6) {
date.setDate(date.getDate() - 1);
} else {
date.setDate(date.getDate() - 1);
if (date.getDay() === 0) {
date.setDate(date.getDate() - 2);
} else if (date.getDay() === 6) {
date.setDate(date.getDate() - 1);
}
}
}
let start;
if (date.getMonth() >= 2) {
start = new Date(date.getFullYear(), 0, 1);
} else {
start = new Date(date.getFullYear() - 1, 6, 1);
}
return [start, date];
}
function GM_xmlhttpRequest_promise(pack) {
return new Promise((resolve, reject) => {
GM_xmlhttpRequest({ ...pack, onload: resolve, onerror: reject });
});
}
async function easyRequest({ url, method, payload, headers }) {
function helper() {
if (method === "GET") {
const U = new URL(url);
payload?.forEach((value, key) => U.searchParams.append(decodeURIComponent(key), decodeURIComponent(value)));
return GM_xmlhttpRequest_promise({ method: "GET", url: U.toString(), headers });
} else if (method === "POST.url") {
return GM_xmlhttpRequest_promise({
method: "POST",
url,
data: payload?.toString(),
headers: { "Content-Type": "application/x-www-form-urlencoded", ...headers }
});
} else if (method === "POST.form") {
const formData = new FormData;
payload?.forEach((value, key) => formData.append(decodeURIComponent(key), decodeURIComponent(value)));
return GM_xmlhttpRequest_promise({ method: "POST", url, data: formData, headers });
}
throw new Error(`Unsupported method: ${method}`);
}
const { status, responseText } = await helper();
if (status !== 200) {
throw new Error(`Request failed: ${status} ${responseText}`);
}
return responseText;
}
async function easyDownload({ content, name, saveAs = true }) {
await GM_download_promise({
url: URL.createObjectURL(new Blob([content.trim()], { type: "application/x-qfx" })),
name,
saveAs
});
}
function GM_download_promise(option) {
const { url, name, saveAs } = option;
return new Promise((resolve, reject) => {
GM_download({ url, name, saveAs, onload: resolve, onerror: reject });
});
}
// src/chase/lib.ts
var BANK_ID = "chase";
var LOGGER_prefix = `[${BANK_ID} Downloader]`;
var POLL_INTERVAL = 500;
async function addDownloadButton() {
const container = await getElement("#dynamic-layout-container", POLL_INTERVAL);
const CLASS = "my-download-btn";
if (container.querySelector(`.${CLASS}`))
return;
const btn = document.createElement("button");
btn.textContent = "Download QFX";
btn.className = CLASS;
btn.style.cssText = `
padding: 8px 12px;
margin: 12px 0px 0px 0px;
background-color: #007bff;
color: white;
border: none;
border-radius: 4px;
cursor: pointer;
width: fit-content;
`;
btn.addEventListener("click", async () => {
location.hash = "#/dashboard/accountDetails/downloadAccountTransactions/index";
try {
await fireDownloadProcess();
} catch (err) {
console.error(`[${BANK_ID} Downloader] Error:`, err);
}
});
container.insertBefore(btn, container.firstChild);
}
async function fireDownloadProcess() {
const requirejs = await getWindowProperty((window2) => window2.requirejs, POLL_INTERVAL);
const sessionCache = await getByPoll(() => requirejs("blue-app/cache/sessionCache"), POLL_INTERVAL);
const tokenList = await getByPoll(() => sessionCache.get("service-/svc/rl/accounts/secure/v1/csrf/token/list"), POLL_INTERVAL);
const token = tokenList.response.csrfToken;
const response = await easyRequest({
url: "https://secure.chase.com/svc/rr/accounts/secure/v1/account/activity/download/options/list",
method: "POST.url",
headers: {
"x-jpmc-csrf-token": "NONE",
"Content-Type": "application/x-www-form-urlencoded; charset=UTF-8"
}
});
for (const account of JSON.parse(response)["downloadAccountActivityOptions"]) {
console.log(`${LOGGER_prefix} Processing account:`, account);
const { accountId, summaryType, nickName, mask } = account;
const routine = summaryType == "DDA" ? DDARoutine : CardRoutine;
const [content, endDate] = await routine(accountId, token);
await easyDownload({
content,
name: `${BANK_ID}_${trimAccountName(nickName)}_${mask}_${endDate}_YTD.qfx`,
saveAs: true
});
}
}
async function DDARoutine(accountId, csrftoken) {
const payload = new URLSearchParams;
const [startDate, endDate] = getDateRange(new Date);
const eStr = formatDateYYYYMMDD(endDate);
payload.append("dateHi", eStr);
payload.append("dateLo", formatDateYYYYMMDD(startDate));
payload.append("statementPeriodId", "ALL");
payload.append("transactionType", "ALL");
payload.append("filterTranType", "ALL");
payload.append("downloadType", "QFX");
payload.append("accountId", accountId);
payload.append("csrftoken", csrftoken);
payload.append("submit", "Submit");
const response = await easyRequest({
url: "https://secure.chase.com/svc/rr/accounts/secure/v1/account/activity/download/dda/list",
method: "POST.url",
payload,
headers: {
"Content-Type": "application/x-www-form-urlencoded"
}
});
return [response, eStr];
}
async function CardRoutine(accountId, csrftoken) {
const payload = new URLSearchParams;
const [startDate, endDate] = getDateRange(new Date);
payload.append("end-date", formatDateYYYYMMDD(endDate));
payload.append("start-date", formatDateYYYYMMDD(startDate));
payload.append("account-activity-download-type-code", "QFX");
payload.append("digital-account-identifier", accountId);
payload.append("csrftoken", csrftoken);
payload.append("submit", "Submit");
const response = await easyRequest({
url: "https://secure.chase.com/svc/rr/accounts/secure/gateway/credit-card/transactions/inquiry-maintenance/digital-transaction-activity/v1/transaction-activities",
method: "GET",
payload
});
return [response, formatDateYYYYMMDD(endDate)];
}
function trimAccountName(name) {
return name.trim().replace(/[\s-.]+/g, "").replace(/[\u2122\u00AE\u00A9]/g, "");
}
// src/chase/index.ts
try {
addDownloadButton();
const observer = new MutationObserver(addDownloadButton);
observer.observe(document.body, { childList: true, subtree: true });
} catch (err) {
console.error("[WF Downloader] Error:", err);
}
})();