How do I get the path of the current nginx/openresty location in lua?

Question

I have this location block:

location /somewhere/ {
    access_by_lua_file /path/to/file.lua;
    add_header X-debug-message "Using location: /somewhere/" always;
    ...
}

and I would like to do two things:

I would like to move the header setting line into the lua file.
For that I have to read the location definition (matching string/regex/...) from a variable rather than typing it in as a static string ("/somewhere/").

So in the end it should just look like this with magic in the lua file (I know how to set a response header in lua).

location /somewhere/ {
    access_by_lua_file /path/to/file.lua;
    ...
}

My problem: I have no clue...

...if there is a variable storing the location desciption ("/somewhere/") - and not the requested URI/URL/PATH and
if so - where that variable can be found.

So how do I access this information from within lua code?

Example

Called URL: https://mydomain.nowhere/somewhere/servicex/1234

Location that matches: "location /somewhere/ { ..."

String I want to get: "/somewhere/" (so exactly the definition of the location block).

Maybe this would help you: https://stackoverflow.com/questions/20000911/get-complete-url-using-nginx-and-lua-with-openresty/46326942 and https://stackoverflow.com/questions/48708361/nginx-request-uri-vs-uri/48709976 — un.def, May 18 '21 at 08:23
If I use this/these variables I do not get the string I defined the location with but the real URI/URI/PATH/REWRITTEN-PATH/... But THX ;-) — eventhorizon, May 18 '21 at 08:57
Did you ever find an answer to this? I have the same problem — Marius Kimmina, Aug 05 '21 at 15:24

0 Answers0