Downloading attachments in C# using OAuth never work
In another thread this question was posted. The poster got it working, but did not post the solution.
I am able to download mail messages using oauth in C# without any issues. However for the mail message downloading attachments is not working. I do have valid OAuth tokens and also valid mid, fid and pid.
I have tried two methods to download attachments
1. Using Json endpoint - i get 500 error
2. Using http get - i get 404 error
Has anyone been able to get this to ever work? highly frustrating.