Masking Dropbox URL

We have a Dropbox bussiness account.

And we want to move several files from our web site server into dropbox and use dropbox as a storage solution.

When a user wants to downoad one of these files we would like to keep the URL pointing to our domain and download the file dirctly from dropbox.

Our site is based in ASP.Net ( C# )

I found several solution of how to do this using the old Public folder, but I haven't been able to find an updated solution. 

I woudn't mind to have this files publicly shared and even keeping a table in the database with each shared link. But I rather have the URL www.OurDomain.com/File?id=1 than https://www.dropbox.com/s/fxwygu57iu3u2l6/doc.pdf?dl=0