I am using the https://github.com/ringcentral/ringcentral-csharp-client c# SDK.
When I run the code to send a fax through a unit test that is in the same Visual Studio solution as the api call, it works.
var restClient = new RestClient(_appKey, _appSecret, _appUrl);
var token = await rc.Authorize(_appUserName, null, _appPassword).Result;
However, when I wrap this functionality within an C# ApiController, it hangs at this point and I can't get the result.
Is there something special I need to do here? My RingCentral app is set for Server-only (No UI) as I would only access the RingCentral API through a in-house built Web Api server.