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       libcurl-easy - easy interface overview


       When  using  libcurl’s "easy" interface you init your session and get a
       handle (often referred to as an "easy handle"), which you use as  input
       to  the  easy interface functions you use. Use curl_easy_init(3) to get
       the handle.

       You continue by setting all  the  options  you  want  in  the  upcoming
       transfer,  the  most  important among them is the URL itself (you can’t
       transfer anything without a specified URL as you may have  figured  out
       yourself).  You  might  want to set some callbacks as well that will be
       called from the library when data is available etc. curl_easy_setopt(3)
       is used for all this.

       When  all  is  setup,  you  tell  libcurl to perform the transfer using
       curl_easy_perform(3).  It will then do the entire operation  and  won’t
       return until it is done (successfully or not).

       After  the  transfer  has  been  made, you can set new options and make
       another transfer, or if you’re done, cleanup  the  session  by  calling
       curl_easy_cleanup(3).  If  you  want  persistent connections, you don’t
       cleanup immediately, but instead run ahead and perform other  transfers
       using the same easy handle.