by Eric Messick.
I ran the rule later and had a look at the Apache access log right after:
MYSERVERIPADDRESS- - [14/Feb/2018:13:13:07 +1300] "POST /webservice/rest/server.php?wstoken=36effd29c7b6a56e743b9b7e77ca827a&wsfunction=core_webservice_get_site_info HTTP/1.1" 200 4266 "-""MoodleBot/1.0"
MYSERVERIPADDRESS- - [14/Feb/2018:13:13:07 +1300] "POST /webservice/rest/server.php?wstoken=36effd29c7b6a56e743b9b7e77ca827a&wsfunction=core_webservice_get_site_info HTTP/1.1" 200 4266 "-""MoodleBot/1.0"
MYSERVERIPADDRESS- - [14/Feb/2018:13:13:07 +1300] "POST /webservice/rest/server.php?wstoken=36effd29c7b6a56e743b9b7e77ca827a&wsfunction=core_user_create_users HTTP/1.1" 200 3747 "-""MoodleBot/1.0"
MYSERVERIPADDRESS- - [14/Feb/2018:13:13:07 +1300] "POST /webservice/rest/server.php?wstoken=36effd29c7b6a56e743b9b7e77ca827a&wsfunction=core_user_create_users HTTP/1.1" 200 3747 "-""MoodleBot/1.0"
MYSERVERIPADDRESS - - [14/Feb/2018:13:13:06 +1300] "GET /myddleware/rule/exec/5a82462ba606d HTTP/1.1" 302 4002 "https://www.MYWEBSITE.COM/myddleware/rule/view/5a82462ba606d""Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/64.0.3282.140 Safari/537.36"
MYSERVERIPADDRESS - - [14/Feb/2018:13:13:07 +1300] "GET /myddleware/rule/view/5a82462ba606d HTTP/1.1" 200 5149 "https://www.MYWEBSITE.COM/myddleware/rule/view/5a82462ba606d""Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/64.0.3282.140 Safari/537.36"
MYSERVERIPADDRESS - - [14/Feb/2018:13:13:08 +1300] "GET /myddleware/js/routing?callback=fos.Router.setData HTTP/1.1" 200 649"https://www.MYWEBSITE.COM/myddleware/rule/view/5a82462ba606d""Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/64.0.3282.140 Safari/537.36"