:- use_module(library(http/http_client)). [det]http_get(+URL, 
-Data, +Options)
[det]http_get(+URL, 
-Data, +Options)Content-Type header and 
plugins. This predicate is the common implementation of the HTTP client 
operations. The predicates http_delete/3, http_post/4 
and
http_put/4 call this predicate 
with an appropriate
method(+Method) option and ---for http_post/4 
and http_put/4--- a post(+Data) 
option.
Options are passed to http_open/3 and http_read_data/3. Other options:
headers(Fields) from http_open/3. 
Provided for backward compatibility. Note that http_version(Major-Minor) 
is missing in the new version.