Runtime event parsing

[ggwpez]

It is currently not possible to parse the runtime::Event type. To hack around this it is possible to skip the Phase like such:

let mut data = event.bytes();
let event = <(subxt::events::Phase, kusama::Event)>::decode(&mut data).map(|r| r.1);

But it would be nice to have something like as_runtime_event. I am not sure if as_root_event is supposed to do that, but it does not do.
The advantage is that it would enable one to easily parse all events of a runtime, instead of just pallet specific ones.

[jsdw]

Thanks for the report!

.as_root_event() is expected to do this, but it looks like it's given too many bytes at the moment so it's broken. We should fix that, and then what you'd like to do will be possible with that function.

That said, what you've done should work. If you find that it works sometimes and fails other times, it may be because there is some difference between the metadata you used to codegen and the current state of the node?

In any case, we will enmdeavour to fix .as_root_event() so that it does what you expect!