ddbc with Vibe-d

[Steve]

On Sunday, 12 February 2023 at 19:38:47 UTC, Steven Schveighoffer 
wrote:
> That might work, depending on args. As documented in the API, 
> if anything in args are mutable references, then it is run as a 
> task, and the same problem still applies (it will use a fiber, 
> and count on the concurrency of vibe's fibers to deal with the 
> asynchronicity).
>
> If it is possible, it will run in a worker thread, and then it 
> can execute concurrently.
>
> I believe you can do:
>
> isWeaklyIsolated!(typeof(args))
>
> to see if it will run in another thread.
>
> I admit not having any experience with this function.
>
> -Steve

In my case args will just be the body of the HTTPServerRequest 
which is JSON. How can I get that JSON and pass it to async() in 
a manner that ensures I get a worker thread?