Pipelining commands in redis-lua

output.txt

*	PONG
*	true
*	0
*	10
*	40
*	1
*	40
*	{2=40}

redis-pipeline.lua

require 'luarocks.require'
require 'redis'
require 'base'

local redis = Redis.connect("192.168.1.205", 6379)

-- all the commands inside of a pipeline are sent to the server
-- in one go, thus avoiding chatty sessions with redis.

local replies = redis:pipeline(function()
    ping()
    flush_database()
    exists('counter')
    increment_by('counter', 10)
    increment_by('counter', 30)
    exists('counter')
    get('counter')
    get_multiple('does_not_exist', 'counter')
end)

for _, reply in pairs(replies) do
    print('*', reply)
end