github.com/kogutich/go-async

go-async

Library that provides promise-like functionality for running functions asynchronously.

Usage

Imagine a function that takes some time to complete.
And we want to run it asynchronously and later take the results.

f := func() (string, error) {
    time.Sleep(time.Second)
    return "Hello world", nil
}

1. Start a function and save the promise (under the hood it runs in a separate goroutine):

promise := async.RunVE(f)

1. Wait for results:

value, err := promise.Wait()

Naming

RunVE means we run function that returns Value and Error.
Supported functions described here. Each function type has its own Run* method.