Hi @arjunsac!
Thanks for posting! I'm not experienced with C#, however I thought I'd reach out with some Alteryx resources that might help you along. First off, the documentation article for the Inputfiles endpoint includes instructions for how to connect using curl. It can be found here.
I did a quick search and found a thread on Stack Overflow where a user who was familiar with curl was trying to make http requests using C#. Again, I am not familiar with C# and cannot validate the responses there, but I thought you might find it useful. It can be found here
Finally, I recommend that you post about this in our Dev Space within Community. This section of Community is dedicated specifically to Development-related issues. You might get more detailed responses from other users on that forum.
