Whatsapp Web - how to access data now? - whatsapp

Question

It used to be possible to access http://web.whatsapp.com/ with the Store object in JavaScript. A few hours ago, this stopped working. How does it update chat data now? It must save the data somewhere.

Answer 1

I'm using this to get the Store again:
setTimeout(function() {
// Returns promise that resolves to all installed modules
function getAllModules() {
return new Promise((resolve) => {
const id = _.uniqueId("fakeModule_");
window["webpackJsonp"](
[],
{
[id]: function(module, exports, __webpack_require__) {
resolve(__webpack_require__.c);
}
},
[id]
);
});
}
var modules = getAllModules()._value;
// Automatically locate modules
for (var key in modules) {
if (modules[key].exports) {
if (modules[key].exports.default) {
if (modules[key].exports.default.Wap) {
store_id = modules[key].id.replace(/"/g, '"');
}
}
}
}
}, 5000);
function _requireById(id) {
return webpackJsonp([], null, [id]);
}
// Module IDs
var store_id = 0;
var Store = {};
function init() {
Store = _requireById(store_id).default;
console.log("Store is ready" + Store);
}
setTimeout(function() {
init();
}, 7000);
Just copy&paste on the console and wait for the message "Store is ready".
Enjoy!

Answer 2

To explain Pablo's answer in detail, initially we load all the Webpack modules using code based on this How do I require() from the console using webpack?.
Essentially, the getAllModules() returns a promise with all the installed modules in Webpack. Each module can be required by ID using the _requireById(id) which uses the webpackJsonp(...) function that is exposed by Webpack.
Once the modules are loaded, we need to identify which id corresponds to the Store. We search for a module containing exports.default.Wap and assign it's id as the Store ID.
You can find more details on my github wiki here

Answer 3

A faster method:
I grab the source of the "app" and find the store object then
I save it in ZStore global variable. :D
!function(){for(var t of document.getElementsByTagName("script"))t.src.indexOf("/app.")>0&&fetch(t.src,{method:"get"}).then(function(t){return t.text().then(function(t){var e=t.indexOf('var a={};t["default"]')-89;window.ZStore=window.webpackJsonp([],null,JSON.stringify(t.substr(e,10))).default})})}();
window.ZStore will contain the object.
Non minified version:
(function() {
function getStore(url) {
fetch(url, {
"method": 'get'
}).then(function(response) {
return response.text().then(function(data) {
var offset = data.indexOf('var a={};t["default"]') - 89;
window.ZStore = window.webpackJsonp([], null, JSON.stringify(data.substr(offset, 10))).default
});
});
}
for (var e of document.getElementsByTagName("script")) {
if (e.src.indexOf("/app.") > 0) getStore(e.src);
}
})();