Understanding Channel Structure
Explore the structure of Phoenix Channels to understand how sockets, channel modules, and PubSub processes work together for real-time communication. Learn the roles of client connections, channel topics, and message broadcasting to build confident, robust real-time applications with Phoenix.
We'll cover the following...
Channel structure
Frameworks often add several layers between the user and the business logic. We shouldn’t worry if we feel a bit intimidated when we first look at Channels and see the different layers being used. We’ll understand each layer and its purpose as we progress through this lesson and course. This will help us leverage Phoenix with an incredible amount of confidence.
Let’s look at a high-level diagram to understand the different processes and connections that exist in Channels:
Client-side
A client connects to the server using a transport mechanism such as a WebSocket by connecting directly to an OTP process that manages the connection. This process delegates certain ...