We have a finite number of vecs (unknown length) of futures. Each vec of futures has a different Result type, so we cannot just flatten them. We would like to do something like try_join where we wait until one returns an error, or all of them return successfully.

We have a finite number of vecs (unknown length) of futures. Each vec of futures has a different Result type, so we cannot just flatten them. We would like to do something like try_join where we wait until one returns an error, or all of them return successfully.

I am struggling to wrap my head around Send and the async context. At present, I am interacting with solana-sdk which has a Signature object which does not implement Send. I interact with this library in an async context in new tasks spawned in tokio.

I got this piece of code that won’t compile.

I’m trying to declare an asynchronous function that takes as an argument another asynchronous function that must take an argument by immutable reference