Is it possible to log the response data in nginx access log?
Solution 1:
Use body_filter_by_lua
to assign request body to a nginx variable, here is an example:
worker_processes 1;
error_log logs/error.log;
events {
worker_connections 1024;
}
http {
log_format log_req_resp '$remote_addr - $remote_user [$time_local] '
'"$request" $status $body_bytes_sent '
'"$http_referer" "$http_user_agent" $request_time req_body:"$request_body" resp_body:"$resp_body"';
server {
listen 8082;
access_log logs/access.log log_req_resp;
lua_need_request_body on;
set $resp_body "";
body_filter_by_lua '
local resp_body = string.sub(ngx.arg[1], 1, 1000)
ngx.ctx.buffered = (ngx.ctx.buffered or "") .. resp_body
if ngx.arg[2] then
ngx.var.resp_body = ngx.ctx.buffered
end
';
location / {
echo "Hello World!";
}
}
}
Solution 2:
use ngx_lua module
like this
body_filter_by_lua 'ngx.log(ngx.CRIT,ngx.arg[1])';
in the right location