nginx json log format

etc-nginx-nginx.conf

# /etc/nginx/nginx.conf 

log_format main '{'
                 '"remote_addr": "$remote_addr",'
                 '"remote_user": "$remote_user",'
                 '"time_local":  "$time_local",'
                 '"request":     "$request",'
                 '"status":      "$status",'
                 '"body_bytes_sent": "$body_bytes_sent",'
                 '"http_referer": "$http_referer",' 
                 '"http_user_agent": "$http_user_agent"'
                 '}';

This isn't safe if the user agent or other user generated content contains unescaped content.

I think it's fine in recent versions of nginx:

Changes with nginx 1.1.6 17 Oct 2011

*) Change: now the 0x7F-0x1F characters are escaped as \xXX in an
   access_log.

Changes with nginx 0.7.0 19 May 2008

*) Change: now the 0x00-0x1F, '"' and '\' characters are escaped as \xXX
   in an access_log.
   Thanks to Maxim Dounin.

\xXX is not valid in a json string (http://json.org/)

so ,it's not a good idead

Yeah this is definitely not correct JSON escaping

so, does an available solution come out?
oh please...

@ayiis You can check https://github.com/jiaz/nginx-http-json-log and kayrus/nginx@682f368

see https://stackoverflow.com/questions/25049667/how-to-generate-a-json-log-from-nginx

Nginx logging json format(http(s)&stream):
https://gist.github.com/hzbd/9dd768087f65d6026e14642bcc859e37