How to generate a JSON log from nginx?

Question

I\'m trying to generate a JSON log from nginx.

I\'m aware of solutions like this one but some of the fields I want to log include user generated input (like HTTP hea

Answer 1

You can try to use:

• addition module for Nginx nginx-http-json-log

• Use any language as done in nginx-json-logformat with example /etc/nginx/conf.d/json_log.conf

• A version of the Nginx HTTP stub status module that outputs in JSON format

PS: The if parameter (1.7.0) enables conditional logging. A request will not be logged if the condition evaluates to “0” or an empty string:

map $status $http_referer{
    ~\xXX  0;
    default 1;
}

access_log /path/to/access.log combined if=$http_referer;

It’s a good idea to use a tool such as https://github.com/zaach/jsonlint to check your JSON data. You can test the output of your new logging format and make sure it’s real-and-proper JSON.