Access to activity report

Hi!! I'm developing a web app and I need external access(web service) to the activity report of the students, the same activity report viewed here:  

*MOODLEURL*/report/log/user.php?id=userid&course=courseid&mode=all

I haven't seen any function for this for the API REST.

I also have seen the log is stored in this table ' mdl_logstore_standard_log' 

My question is how can I access this data with a web service??? Is not possible?

Thank you.