I've been working on higher level bindings to cURL (based on ocurl), at
https://github.com/c-cube/ezcurl .

```
$ dune utop src/sync
# Ezcurl.get ~url:"https://ocaml.org/feed.xml" ();;
- : (Ezcurl_core.response, Curl.curlCode * string) result =
Ok
 {Ezcurl_core.code = 200;
  headers =
   [("Content-Type", "application/xml"); ("Accept-Ranges", "bytes");
    ("ETag", "\"1394832364\"");
    ("Last-Modified", "Thu, 26 Sep 2019 13:15:03 GMT");
    ("Content-Length", "402487");
    ("Date", "Thu, 26 Sep 2019 13:49:00 GMT");
    ("Server", "lighttpd/1.4.53")];
  body =
   "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<feed xmlns=\"http://www.w3.org/2005/Atom\"><icon>http://ocaml.org/img/colour-icon-170x148.png</icon><generator uri=\"https://ocaml.org/\" version=\"${version:syndic}\">OCaml Syndic.Atom feed aggregator</generator><id>urn:md5:302d717d0937d8"... (* string length 402487; truncated *);
  info =
   {Ezcurl_core.ri_response_time = 6.346256; ri_redirect_count = 0}}
```

Maybe it's a different version of GNUTLS though (I'm on archlinux, it's 3.6.9-1).


-- 
Simon Cruanes