3.5 library(http/http_session): HTTP Session management
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      • SWI-Prolog HTTP support
        • The HTTP server libraries
          • library(http/http_session): HTTP Session management
            • http_set_session_options/1
            • http_session_option/1
            • session_setting/2
            • http_set_session/1
            • http_set_session/2
            • http_session_id/1
            • http_in_session/1
            • http_open_session/2
            • http_session_asserta/1
            • http_session_assert/1
            • http_session_retract/1
            • http_session_retractall/1
            • http_session_data/1
            • http_session_asserta/2
            • http_session_assert/2
            • http_session_retract/2
            • http_session_retractall/2
            • http_session_data/2
            • http_current_session/2
            • http_close_session/1
            • http_session_cookie/1
            • hooked/0
            • hook/1
Availability::- use_module(library(http/http_session)).
Source[det]http_session_id(-SessionId)
True if SessionId is an identifier for the current session.
SessionId is an atom.
Errors
existence_error(http_session, _)
See also
http_in_session/1 for a version that fails if there is no session.