The "only the above URL" lead to some considerable confusion where somebody thought that you couldn't use the other Parameters, not that you had to use those.
* Remove extra backticks for syntax rendering
It looks like 2 out of the 3 example configs are incorrect on this page. This should fix them.
* Remove more backticks
Change '?' in "?api_password=<password>" to "&" resulting in "&api_password=<password>" - as the GPSLogger was giving response errors in the Log View in the app.