Recently, I've been working on a way to serve HTTP with IO::Async. For a while it's been possible to use HTTP as a client with Net::Async::HTTP, so it seemed only natural to provide a server named Net::Async::HTTP::Server.

I've tried to design the interface fairly similar to some of the other server modules, most notably Net::Async::FastCGI. This allows for similar code to be written one way or the other, for responding via HTTP or FastCGI.

use Net::Async::HTTP::Server;
use IO::Async::Loop;
use HTTP::Response;
my $loop = IO::Async::Loop->new();
my $httpserver = Net::Async::HTTP::Server->new(
   on_request => sub {
      my $self = shift;
      my ( $req ) = @_;
      my $response = HTTP::Response->new( 200 );
      $response->add_content( "Hello, world!\n" );
      $response->content_type( "text/plain" );
      $req->respond( $response );
$loop->add( $httpserver );
   addr => { family => "inet6", socktype => "stream", port => 8080 },
   on_listen_error => sub { die "Cannot listen - $_[-1]\n" },
As with Net::Async::FastCGI the distribution also includes modules to support hosting a PSGI application via Plack. The Plack::Handler module in particular allows the use of Net::Async::HTTP::Server directly from the plackup commandline:

plackup -s Net::Async::HTTP::Server --listen ":8080" application.psgi

It's still in somewhat of an early state - while it supports sending streaming responses (as required by PSGI) it doesn't yet support streaming receiving of requests. That shouldn't be too hard to add, but so far I haven't found a need to add it yet.