Serialize tree

[benjamineberle]

What is the recommended way to serialize a tree respectively treestore into json, so one can save the whole tree at once in localstorage, for example?

I guess the resulting json should look like this to be able to re-use it directly:

root: {text: 'root', children: [
    {text: 'leaf1'},
    {text: 'leaf2', children: [
        {},
        {}, ...
    ]}
]

This might seem obvious, but I can't find the answer from the docs or previous posts. Isn't there anything built-in? I have created my own iteration function, but I can't imagine such a common task has to be re-built every time someone needs that...?

Thanks!