How to pass parameters from main process to render processes in Electron

Question

I have an Electron app that can open different windows.

On app launch the app open a set of window(s) (that load the same HTML and JS files) but with params to change ea

Answer 1

According atom source code the query string method is a reliable way to do that very simply, especially when we only need to pass a unique string param:

// main process
win1.loadURL(`file://${__dirname}/app/app.html?id=${id}`);

// rendered process
console.log(global.location.search);

https://github.com/electron/electron/issues/6504