Feersum::Connection - HTTP connection encapsulation
For a streaming response:
Feersum->endjinn->request_handler(sub { my $req = shift; # this is a Feersum::Connection object my $env = $req->env(); my $w = $req->start_streaming(200, ['Content-Type' => 'text/plain']); # then immediately or after some time: $w->write("Ergrates "); $w->write(\"FTW."); $w->close(); });
For a response with a Content-Length header:
Feersum->endjinn->request_handler(sub { my $req = shift; # this is a Feersum::Connection object my $env = $req->env(); $req->start_whole_response(200, ['Content-Type' => 'text/plain']); $req->write_whole_body(\"Ergrates FTW."); });
Encapsulates an HTTP connection to Feersum. It's roughly analagous to an Apache::Request or Apache2::Connection object, but differs significantly in functionality.
Apache::Request
Apache2::Connection
Until Keep-Alive functionality is supported (if ever) this means that a connection is also a request.
See Feersum for more examples on usage.
my $env = $req->env()
Obtain an environment hash. This hash contains the same entries as for a PSGI handler environment hash. See Feersum for details on the contents.
This is a method instead of a parameter so that future versions of Feersum can request a slice of the hash for speed.
my $w = $req->start_streaming($code, \@headers)
A full HTTP header section is sent with "Transfer-Encoding: chunked" (or "Connection: close" for HTTP/1.0 clients).
Returns a Feersum::Connection::Writer handle which should be used to complete the response. See Feersum::Connection::Handle for methods.
Feersum::Connection::Writer
$req->send_response($code, \@headers, $body)
$req->send_response($code, \@headers, \@body)
Respond with a full HTTP header (including Content-Length) and body.
Content-Length
Returns the number of bytes calculated for the body.
$req->force_http10
$req->force_http11
Force the response to use HTTP/1.0 or HTTP/1.1, respectively.
Normally, if the request was made with 1.1 then Feersum uses HTTP/1.1 for the response, otherwise HTTP/1.0 is used (this includes requests made with the HTTP "0.9" non-declaration).
For streaming under HTTP/1.1 Transfer-Encoding: chunked is used, otherwise a Connection: close stream-style is used (with the usual non-guarantees about delivery). You may know about certain user-agents that support/don't-support T-E:chunked, so this is how you can override that.
Transfer-Encoding: chunked
Connection: close
Supposedly clients and a lot of proxies support the Connection: close stream-style, see support in Varnish at http://www.varnish-cache.org/trac/ticket/400
$req->fileno
The socket file-descriptor number for this connection.
$req->response_guard($guard)
Register a guard to be triggered when the response is completely sent and the socket is closed. A "guard" in this context is some object that will do something interesting in its DESTROY/DEMOLISH method. For example, Guard.
Jeremy Stashewsky, stash@cpan.org
stash@cpan.org
Copyright (C) 2010 by Jeremy Stashewsky & Socialtext Inc.
This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself, either Perl version 5.8.7 or, at your option, any later version of Perl 5 you may have available.
To install Feersum, copy and paste the appropriate command in to your terminal.
cpanm
cpanm Feersum
CPAN shell
perl -MCPAN -e shell install Feersum
For more information on module installation, please visit the detailed CPAN module installation guide.