Is there a global scope for storing Lua variables in civetweb?

[Tamer Temizer]

I want to be able to store some global variables that will be shared across different pages. Is there a global Lua scope that I can use or do I need to store it in some kind of a file? I didn't embed civetweb, it is running from document root.

[bel]

There are different ways to do this.

-) You could store values in a database (see test/page.lua)

-) You could use websockets sharing a common state (see test/websocket.lua)

-) If you have some const data to share between states, you could use a preload file (see docs/UserManual.md)

-) Indeed, you could do it manually and "store it in some kind of file", but depending on the use case, there are easier / better options

-) You could use a library to share the data

What data do you want to store?
Data type?
Read/write?

[bel]

In the current version (1.11 - not yet released), I added a small library I once created to exchange strings, numbers and boolean values between different Lua states. You can use it to share some read/write variables across different states.
See "test/page_shared.lua" as example how to use it.

If you need "read only" variables, I recommend to use a lua_preload_file.