Each connection is a stream of Request => Response, having a slow Future
inside that stream will backpressure so the same client cannot push another
request through that connection.
The Akka HTTP server by default limits the number of concurrent connections
to 1024 (you can set it using akka.http.
Hi all,
I am just trying out akka-http and haven't been able to find much
information about how backpressure works when we use futures and run
operations async.
For example, if I create a REST API with a route that looks like this:
```
val route =
(path("users") & post & entity(as[NewUser]))
