Bash script to automate downloads through Synology API
GitHub user @CausticD mentioned the following:
It looks like the file location has changed. The V3 one is still available here: http://download.synology.com/download/Document/FAQ/Synology_Download_Station_Official_API_V3.pdf
But a (slightly) newer one is here: http://download.synology.com/download/Document/DeveloperGuide/Synology_Download_Station_Web_API.pdf
I no longer have a Synology and haven't reviewed the code to see if there are any changes, but I welcome PRs with updates.