How to send all POST requests to index.php in nginx?

Question

Nginx

Hey! I'm making a file upload server. You need to send post requests to index.php and get to display statics.
Tell me the config please.

Answer 1

if ($request_method = POST) {
    rewrite ^ /index.php break;
  }

  location = /index.php {
    internal;
    fastcgi_pass    unix:/run/php/php7.3-fpm.sock;
    fastcgi_index   index.php;
    fastcgi_param   SCRIPT_FILENAME $document_root$fastcgi_script_name;
    include         fastcgi_params;
  }
  
  location = / {
    try_files $uri $uri/;
  }