NAME

YAHC - Yet another HTTP client

SYNOPSIS

use YAHC qw/yahc_reinit_conn/;

my @hosts = ('www.booking.com', 'www.google.com:80');
my ($yahc, $yahc_storage) = YAHC->new({ host => \@hosts });

$yahc->request({ path => '/', host => 'www.reddit.com' });
$yahc->request({ path => '/', host => sub { 'www.reddit.com' } });
$yahc->request({ path => '/', host => \@hosts });
$yahc->request({ path => '/', callback => sub { ... } });
$yahc->request({ path => '/' });
$yahc->request({
    path => '/',
    callback => sub {
        yahc_reinit_conn($_[0], { host => 'www.newtarget.com' })
            if $_[0]->{response}{status_code} == 301;
    }
});

$yahc->run;

STATE MACHINE

YAHC uses following state machines for every connection:

             +-----------------+
             |   INITALIZED    <---+
             +-----------------+   |
                     |             |
             +-------v---------+   |
         +---+   RESOLVE DNS   +---+
         |   +-----------------+   |
         |           |             |
         |   +-------v---------+   |
         +---+   WAIT SYNACK   +---+
         |   +-----------------+   |
         |           |             |
Path in  |   +-------v---------+   |  Retry
case of  +---+    CONNECTED    +---+  logic
failure  |   +-----------------+   |  path
         |           |             |
         |   +-------v---------+   |
         +---+     WRITING     +---+
         |   +-----------------+   |
         |           |             |
         |   +-------v---------+   |
         +---+     READING     +---+
         |   +-----------------+   |
         |           |             |
         |   +-------v---------+   |
         +--->   USER ACTION   +---+
             +-----------------+
                     |
             +-------v---------+
             |      DONE       |
             +-----------------+

AUTHORS

Ivan Kruglov <ivan.kruglov@yahoo.com>

COPYRIGHT

Copyright (c) 2013 Ivan Kruglov <ivan.kruglov@yahoo.com>.

ACKNOWLEDGMENT

This module derived lots of code from Hijk https://github.com/gugod/Hijk. This module was originally developed for Booking.com.

LICENCE

The MIT License

DISCLAIMER OF WARRANTY

BECAUSE THIS SOFTWARE IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY FOR THE SOFTWARE, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE SOFTWARE "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE SOFTWARE IS WITH YOU. SHOULD THE SOFTWARE PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR, OR CORRECTION.

IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR REDISTRIBUTE THE SOFTWARE AS PERMITTED BY THE ABOVE LICENCE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE SOFTWARE (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE SOFTWARE TO OPERATE WITH ANY OTHER SOFTWARE), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.