Nginx try_files with name from query

Question

'm trying to find way how to serve cached files with nginx.

I have stored search results to json file in shared memory. Next time when user tries to look up the same search, it supposed to be served by nginx by try_files directive.

Here is the request string:

/api/ajax-ticker-search?search=SBER 

Here is what I have in nginx:

location /api/ajax-ticker-search/ { try_files /dev/shm/searchResults/$arg_search.json @apisearch; } 

I do have file named SBER.json in /dev/shm/searchResults but nginx is not serving it, always falling back to @apisarch location.

What's wrong with try_files and how can make it work and serve stored json file?

Answer 1

OK, I've managed this to work, but still don't understand how.

Here is working config:

location /api/ajax-ticker-search { root /dev/shm/search; try_files /$arg_search @apisearch; } 

What I did:

• moved files from searchResults folder to search folder (no camel case folders?);

  • put root directive before try_files so filename in try_files directive is now just /$arg_search instead of /dev/shm/search/$arg_search. (Have to set root?)

  • removed .json extension (Just in case)

I have no idea which of theses actually helped, but now it works and I can cache search results from PHP directly to file that then is being read by nginx.