How to display "this" in log_format?

Question

Nginx

$.ajax({
  url: 'http://api.domen.ru/dir',
  type: 'POST',
  contentType: 'application/json',
  data: JSON.stringify({
      name: 'some name'
  })
});

How to display the transferred data in log_format? That is, my log_format writes to a file and outputs data to the console. What should be written in the config to display the transferred values?

Answer 1

www.stackoverflow.com/a/14034744

location /dir {
  log_format postdata $request_body;
  access_log /var/log/nginx/access.log postdata;
  echo_read_request_body;
}