NETIO uses Lua as its scripting language. To master it, follow these references:
If you are new to Lua and programming as such and if you are eager to learn, this is your starting point. Before you proceed to NETIO Sockets, this online environment will be a good place to test your first scripts.
A quick jump into NETIO Lua programming if you mastered another programming language. If you already know Lua, just keep in mind that NETIO Lua loops are limited to 32k cycles and all numbers are integers, not decimals like in standard Lua.
If you can already code in Lua, NETIO-specific Lua functions is your main guide to programm NETIO Sockets.
Although you won't need everything mentioned here, it is worth to peek here from time to time to grasp the concepts of effective Lua programming.