Hi,
I'm new to nginx lua, and got a setup from previous developer. Trying to go through the docs to understand the scope but I'm pretty unsure.
It's like this right now
```
init_by_lua_block {
my_module = require 'my_module'
my_module.load_data()
}
...
location / {
content_by_lua_block {
my_module.use_data()
}
}
```
And in my_module
```
local _M = {}
local content = {}
local function _M.use_data()
-- access content variable
end
local function _M.load_data()
-- code to load json data into content variable
end
return _M
```
So my understand is, content is a local variable, so its lifetime is within each request. However, it's being initialized in `init_by_lua_block`, and is being used by other local functions, which makes me confused. Is this a good practice? And what's the actual lifetime of this content variable?
Thanks a lot for reading.
