nginx reverse proxy disable cache - nginx

Question

i use nginx as a reverse proxy to connect a api. The problem is when i send a query after add or remove something. Nginx send me the old json value. I tried to disabled cache but it's not working.
my nginx config:
location / {
sendfile off;
add_header Last-Modified $date_gmt;
add_header Cache-Control 'no-store, no-cache, must-revalidate, proxy-revalidate, max-age=0';
if_modified_since off;
expires off;
etag off;
proxy_no_cache 1;
proxy_cache_bypass 1;
proxy_pass http://127.0.0.1:5000;
proxy_set_header Host $http_host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-Proto $scheme;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header HTTPS $https;
}
i tried query without nginx and all work well in console
thank you!

Answer 1

According to the documentation proxy_cache you have to replace
proxy_no_cache 1;
proxy_cache_bypass 1;
proxy_no_cache and proxy_cache_bypass defines conditions under which the response will not be saved to a cache.
Then to disable the cache, you can replace these two condition with
proxy_cache off;
Here a full exemple that you can use to configure a proxy for a stateless api server
location /myapi {
# Proxy
proxy_set_header X-Localhost true;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_pass http://localhost:8080/myapi;
proxy_redirect off;
proxy_buffers 32 16k;
proxy_busy_buffers_size 64k;
proxy_cache off;
# Headers for client browser NOCACHE + CORS origin filter
add_header 'Cache-Control' 'no-store, no-cache, must-revalidate, proxy-revalidate, max-age=0';
expires off;
add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS' always;
add_header 'Access-Control-Allow-Headers' 'Origin, X-Requested-With, Content-Type, Accept' always;
allow all;
}