This illustration shows a high-level architecture diagram that shows the components and the steps in the authorization code grant process, using the SDK library. Icons represent a user, an iOS mobile device, an iOS mobile app, the SDK library, and Oracle Identity Cloud Service. The flow between the components of the user, the iOS mobile device, the iOS mobile app, the SDK library, and Oracle Identity Cloud Service is shown by using numbers and arrows. The flow is described in the text that follows the diagram.