Tarantool initialization file with expirationd setup

tarantalk_box_with_expirationd.lua

-- Modules
console = require('console')
queue = require('queue')
http = require('http.client')
json = require('json')

-- Expirationd setup
expirationd = require('expirationd')

function is_expired(args, tuple)
    local expire_secs = tuple[3] or 0
    return (expire_secs - os.time() < 0)
end

function start_cleaner(space_name) 
    if (box.space[space_name]) then
        if (box.space[space_name].index) then
            expirationd.start(space_name..'_cleaner', space_name, is_expired, {})
        end
    end
end

function start_cleaners()
    local table_names = box.space._space.index.name:select('zzz_exp',{iterator=box.index.GE})
    for k,v in ipairs(table_names) do
        local tb_name = v[3]
        start_cleaner(tb_name)  
    end
end

-- Startup
box.cfg{listen = 3301}

-- User Roles
box.schema.user.create('taran', {password = 'talk',if_not_exists = true})
box.schema.user.grant('taran', 'read,write,execute', 'universe', nil, {if_not_exists = true})

-- Initializer
start_cleaners()

console.start()