I'm stuck and hopefully someone who has gone through this can help me. I've gone through the sample iOS application provided by Nest. I have registered as a developer and have a nest client ID and nest client secret. I have downloaded the sample application and my goal is to use this a reference to build an iOS application that interfaces with multiple connected devices within my home.
I have compiled the application and can run this through xCODE. Using the client ID, and client secret key, I'm also able to go to the Client Authorization screen. I then can login to nest, and get a PIN. This is where I'm stuck, I was expecting that by authorizing the client I would somehow get an access token that I can use during the API calls to provide access. I see the sample code to parse for the access token, but I don't see any code path to get to retrieving and access token.