How to provision sharePoint Apps from APP catalogue Site collection to web app using CSOM.
When browsing on the internet,probably find a method called LoadAndInstallApp on the SPWeb object.
This method however only accepts stream object to a binary representation of the .app file.
The .app file is actually a zip file containing the application. The disadvantage of this solution is that need to upload the App
to every single Web where you want to deploy this App and not using the advantage of a central location like the App Catalogue to distribute the Apps and taking care of versioning.

Any alternate solution is also appreciated.

Thanks in Advance !..