Redis::hiredis - interact with Redis using the hiredis client.
use Redis::hiredis; my $redis = Redis::hiredis->new(); $redis->connect('127.0.0.1', 6379); $redis->command('set foo bar'); $redis->command(["set", "foo", "bar baz"]); # values with spaces my $val = $redis->command('get foo'); # to pipeline commands $redis->append_command('set abc 123'); $redis->append_command('get abc'); my $set_status = $redis->get_reply(); # 'OK' my $get_val = $redis->get_reply(); # 123
Redis::hiredis is a simple wrapper around Salvatore Sanfilippo's hiredis C client that allows connecting and sending any command just like you would from a command line Redis client.
NOTE Versions >= 0.9.2 and <= 0.9.2.4 are not compatible with prior versions
- new([utf8 => 1], [host => "localhost"], [port => 6379], [path => "/tmp/redis.sock"])
Creates a new Redis::hiredis object.
If the host attribute is provided the "connect" method will automatically be called.
If the path attribute is provided the "connect_unix" method will automatically be called.
- connect( $hostname, $port )
$hostnameis the hostname of the Redis server to connect to
$portis the port to connect on. Default 6379
- connect_unix( $path )
$pathis the path to the unix socket
- command( $command_and_args )
- command( [ $command, $arg, ... ] )
- command( $command, $arg, ... )
command supports multiple types of calls to be backwards compatible and provide more convenient use. Examples of how to pass arguments are:
$redis->command('set foo bar'); $redis->command(["set", "foo", "bar baz"]); $redis->command("set", "foo", "bar baz");
Note that if you have spaces in your values, you must use one of the last 2 forms.
command will return a scalar value which will either be an integer, string or an array ref (if multiple values are returned).
- append_command( $command )
For performance reasons, it's sometimes useful to pipeline commands. When pipelining, muiltple commands are sent to the server at once and the results are read as they become available. hiredis supports this via append_command() and get_reply(). Commands passed to append_command() are buffered locally until the first call to get_reply() when all the commands are sent to the server at once. The results are then returned one at a time via calls to get_reply().
See the hiredis documentation for a more detailed explanation.
Autoload is used to allow an interface like $redis->set("foo", "bar"). The method name you provide will be passed blindly to Redis, so any supported command should work.
Note that to use any autoloaded method, you must pass arguments as an array, the string and array ref forms supported by command will not work.
The Redis command reference can be found here: http://redis.io/commands
A discusion of pipelining can be found here: http://redis.io/topics/pipelining
Documentation on the hiredis client can be found here: https://github.com/antirez/hiredis
Redis::hiredis on github: https://github.com/neophenix/redis-hiredis