register a function in rhai that uses/binds a variable from rust

[RudolfVonKrugstein]

I am very new to rust, so maybe this is just me being a newbie.

I want to do something like this:

fn get(url: &str) {
    // Some code to send a http GET to the given url
}

fn build_engine() {
    let target_url = load_url_from_config();
    let mut engine = rhai::Engine::new();
    engine.register_fn("get_target_url", || get(target_url));
}

But it seems, that I cannot pass closures to register_fn:

the trait `RegisterNativeFunction<_, ()>` is not implemented for ...

But how can I get the variable "target_url" into the call if get_targer_url (rhai function) whithout having to pass it in rhai?

[cn-kali-team]

https://rhai.rs/book/rust/functions.html

[schungx]

You'll need to give more info, such as what is the return type of get... is it Clone? Rhai needs to work with data types that are Clone, for example.

Also, functions for register_fn must be 'static, so maybe you need to do: move || get(target_url)

[schungx]

Closing this for now. Feel free to reopen if you have any problems.