killAnonymous not working as expected for anonymous proxy

Question

I have created an anonymous proxy(Proxy pallet). Now I need to delete this proxy. I am using killAnonymous but it is giving me errors.

Please suggest what i am doing incorrect here

Answer 1

The kill_anonymous call needs to come from the anonymous itself:

let who = ensure_signed(origin)?;
let when = (height, ext_index);
let proxy = Self::anonymous_account(&spawner, &proxy_type, index, Some(when));
ensure!(proxy == who, Error::<T>::NoPermission);

Of course the only way to access an anonymous proxy origin is via proxy.proxy. Your call above is correct, but you need to wrap it in a proxy.proxy such that the origin is the anon proxy.

proxy.proxy(
    real: <YOUR_ANON_PROXY>,
    force_proxy_type: Any,
    call: proxy.killAnonymous(
        /* args */
    )

)

This is because the spawner may have set a new account as the proxy and removed itself, so the permission to kill an anon rests with the anon itself.