ta0967

       Use the file name "-" (a single dash) to use stdin instead of a given file.
       Alternately, the file name "." (a single period) may be specified instead of
       "-" to use stdin in non-blocking mode to allow reading server output while
       stdin is being uploaded.

       -X, --request <command>

              (...)

              Normally you don't need this option. All sorts of GET, HEAD, POST and PUT requests  are  rather
              invoked by using dedicated command line options.

              This  option  only  changes the actual word used in the HTTP request, it does not alter the way
              curl behaves. So for example if you want to make a proper HEAD request, using -X HEAD will  not
              suffice. You need to use the -I, --head option.

              The  method  string you set with -X will be used for all requests, which if you for example use
              -L, --location may cause unintended  side-effects  when  curl  doesn't  change  request  method
              according to the HTTP 30x response codes - and similar.