How to use resolver in the async context

[ghost]

https://github.com/RGB-WG/rgb/blob/master/src/resolvers/any.rs#L44

pub struct AnyResolver {
    inner: Box<dyn RgbResolver>, // here missing Send
    terminal_txes: HashMap<Txid, Tx>,
}

[dr-orlovsky]

It is a feature, not a bug :)

If you need one for async, you can write your own and name it AnyResolverAsync (+corresponding Electrum and Esplora imlementations)

[dr-orlovsky]

The recommended way of doing non-blocking resolver is to create a dedicated thread which permanently run resolver and talk to it via crossbeam. Than, you need to write ResolverProxy which will be on the other end of the crossbeam channel and will send commands to the resolver thread - and be used inside rb-wallet and rgb APIs. In this way you do not need async in RGB itself and have a non-blocking thing