I had seen someone ask this question in one of the earlier threads and seems like it has been archived so I'm having to start a new thread. Here's a link to the earlier thread - https://forums.coronalabs.com/topic/73850-steam-microtransactions-vs-dlc-in-corona/
Basically Steam, in their API documentation have mentioned a method named BlsDlcInstalled which would allow us to check if a dlc is installed/owned by the user. I've gone through corona's documentation for steamworks plugin and can't find any method that could be used to achieve the same. Has this feature been implemented or is there any other way of doing it?