OpenTok is a proprietary framework that allows you to build WebRTC-based applications using the provided SDK. In this recipe, we will build a simple demo application by utilizing the basic features of the tool.
To use this framework, you should register with the OpenTok system, and get a unique developer API ID. To use this system, you should have three keys: the API key, session ID, and token. The following instructions cover the process of creating these keys: