How to achieve Asynchrony instead of Parallelism in F#

Question

(Sticking to a common example with async fetch of many web pages)

How would I spin off multiple (hundreds) of web page requests asynchronously, and then wait for all req

Answer 1

I'm not an F# guy, but from a pure .NET perspective what you're looking for is TaskFactory::FromAsync where the asynchronous call you'd be wrapping in a Task would be something like HttpRequest::BeginGetResponse. You could also wrap up the EAP model that WebClient exposes using a TaskCompletionSource. More on both of these topics here on MSDN.

Hopefully with this knowledge you can find the nearest native F# approach to accomplish what you're trying to do.