SWI-Prolog -- http_log

Documentation
- Reference manual
- Packages
  - SWI-Prolog HTTP support
    - The HTTP server libraries
      - library(http/http_log): HTTP Logging module
        
        http_log_stream/1
        
        http_log_close/1
        
        http_log/2
        
        password_field/1
        
        nolog/1
        
        nolog_post_content_type/1
        
        post_data_encoded/2
        
        http_logrotate/1
        
        http_schedule_logrotate/2

Availability::- use_module(library(http/http_log)).

[det]http_log_close(+Reason)

If there is a currently open HTTP logfile, close it after adding a term server(Reason, Time). to the logfile. This call is intended for cooperation with the Unix logrotate facility using the following schema:

Move logfile (the HTTP server keeps writing to the moved file)
Inform the server using an HTTP request that calls http_log_close/1
Compress the moved logfile

author: Suggested by Jacco van Ossenbruggen