BookStack API Usage

Hi, I saw you created an API branch. Just thought I'd create an issue withe the following if the event it helps you.

I've created a PHP equivalent script here: https://gist.github.com/ssddanbrown/45acb913a7b873240b2d89781e74a7a4

Note that the total parameter provided on listing responses is currently wrong when you set an offset, means you can't check against the total of the latest request when getting all books, only the first request. Issue tracked here: https://github.com/BookStackApp/BookStack/issues/2043

^ This issue has been patched and will be fixed in the next patch release.

If you have any other issues feel free to let me know.

BTW, Thanks again for supporting people by sharing your script.