How to ask for root password from the user for my GUI app which pipes it to makepkg?

I was learning rust. I am building a simple GUI application that scrapes through aur and installs a package. I am using tauri for GUI. So, to install an aur application, I will run makepkg -si inside the package directory. But, it asks for root password in the middle of installation. After searching web, I came to know, I can use pkexec to ask password graphically but pkexec is like using sudo and running makepkg as sudo is not allowed. Any idea of what should I do? Are there any articles where I can look into ?