Thanks for the reply.
My first thought was to put a "set foo '-'" in the config, but when I use
this pared-down example that emulates the documentation except to replace
"content_by_lua" with "rewrite_by_lua":
https://gist.github.com/danslimmon/1ba367780f0
I am trying to use the Lua module in nginx to set a variable ("foo") based
on JSON in the body of a request. Then I want to log the value of that
variable to the access log.
Like so: https://gist.github.com/danslimmon/17f5bf4736566737cc65
However, nginx won't start with this co
