1.lua

require "pubnub" 
 
-- 
-- GET YOUR PUBNUB KEYS HERE: 
-- http://www.pubnub.com/account#api-keys 
-- 
multiplayer = pubnub.new({ 
    publish_key   = "demo",             -- YOUR PUBLISH KEY 
    subscribe_key = "demo",             -- YOUR SUBSCRIBE KEY 
    secret_key    = nil,                -- YOUR SECRET KEY 
    ssl           = nil,                -- ENABLE SSL? 
    origin        = "pubsub.pubnub.com" -- PUBNUB CLOUD ORIGIN 
})

2.lua

-- 
-- PUBNUB SUBSCRIBE CHANNEL (RECEIVE MESSAGES) 
-- 
multiplayer:subscribe({ 
    channel  = "lua-corona-demo-channel",
    callback = function(message) 
        -- MESSAGE RECEIVED!!! 
        print(message) 
    end,
    errorback = function() 
        print("Network Connection Lost") 
    end 
})

3.lua

-- 
-- PUBNUB PUBLISH MESSAGE (SEND A MESSAGE) 
-- 
multiplayer:publish({ 
    channel  = "lua-corona-demo-channel",
    message  = { "1234", 2, 3, 4 },
    callback = function(info) 
 
        -- WAS MESSAGE DELIVERED? 
        if info[1] then 
            print("MESSAGE DELIVERED SUCCESSFULLY!") 
        else 
            print("MESSAGE FAILED BECAUSE -> " .. info[2]) 
        end 
 
    end 
})

4.lua

-- 
-- PUBNUB UN-SUBSCRIBE CHANNEL (STOP RECEIVING MESSAGES) 
-- 
multiplayer:unsubscribe({ 
    channel = "lua-corona-demo-channel" 
})

5.lua

-- 
-- PUBNUB LOAD MESSAGE HISTORY 
-- 
multiplayer:history({ 
    channel  = "lua-corona-demo-channel",
    limit    = 10,
    callback = function(messages) 
        if not messages then 
            return print("ERROR LOADING HISTORY") 
        end 
 
        -- NO HISTORY? 
        if not (#messages > 0) then 
            return print("NO HISTORY YET") 
        end 
 
        -- LOOP THROUGH MESSAGE HISTORY 
        for i, message in ipairs(messages) do 
            print(Json.Encode(message)) 
        end 
    end 
})

6.lua

-- 
-- PUBNUB SERVER TIME 
-- 
multiplayer:time(function(time) 
    -- PRINT TIME 
    print("PUBNUB SERVER TIME: " .. time) 
end)