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 configuration. It complains thusly: https://gist.github.com/danslimmon/f5f789d8af8bbb06b224 Here is my "nginx -V" output: https://gist.github.com/danslimmon/9ed99c63aa6c04b... Thoughts? Thanks in advance. Posted at Nginx Forum: http://forum.nginx.org/read.php?2,240917,240917#msg-240917
on 2013-07-16 17:27

on 2013-07-16 18:02

On Tue, 16 Jul 2013 11:26:29 -0400 "danslimmon" <nginx-forum@nginx.us> wrote: > However, nginx won't start with this configuration. It complains > thusly: https://gist.github.com/danslimmon/f5f789d8af8bbb06b224 http://wiki.nginx.org/HttpLuaModule#ngx.var.VARIABLE "Note that only already defined nginx variables can be written to." Look at example how to do that. Marcin
on 2013-07-16 18:22

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/1ba367780f0efdd2afc5 I get "-" in the logs instead of "bar". Is it the "content"/"rewrite" difference? Posted at Nginx Forum: http://forum.nginx.org/read.php?2,240917,240920#msg-240920
on 2013-07-16 18:45

On Tue, 16 Jul 2013 12:22:19 -0400 "danslimmon" <nginx-forum@nginx.us> wrote: > 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/1ba367780f0efdd2afc5 > > I get "-" in the logs instead of "bar". Is it the "content"/"rewrite" > difference? Shouldn't be and works for me (nginx 1.2.8) I noticed that your example cannot work as you missed semicolon after at the end of line with set (I get syntax error). Marcin