Chapter 5: Managing Active WebSocket Connections

Wed, 20 Aug 2025 00:00:00 +0000

Our current WebSocket endpoint only echoes messages back to the sender. A real chat application needs to handle multiple users, allowing them to join, leave, and send messages that are broadcast to all other connected users (or users in a specific room). This chapter introduces a WebSocket connection manager to address this.

Purpose of this Chapter

By the end of this chapter, you will:

Understand the need for a connection manager in a real-time application.
Implement a ConnectionManager class to store and manage active WebSocket connections.
Modify the WebSocket endpoint to use the manager for connecting, disconnecting, and broadcasting messages.
Test broadcasting functionality with multiple client connections.

Concepts Explained: Connection Management

When a client connects via WebSocket, the WebSocket object represents that specific connection. To send a message to all active clients, or a subset of them, our server needs a way to keep track of these individual WebSocket objects. A ConnectionManager class typically serves this purpose.

Chapter 7: Enhancing Chat Functionality: Room-based Messaging

Wed, 20 Aug 2025 00:00:00 +0000

A single global chat channel is fun, but real-world chat applications typically feature multiple “rooms” or “channels” where users can have separate conversations. This chapter will modify our ConnectionManager and WebSocket endpoint to support room-based messaging.

Purpose of this Chapter

By the end of this chapter, you will:

Modify the ConnectionManager to manage connections per room.
Update the WebSocket endpoint to allow clients to specify a chat room.
Implement broadcasting messages only to users within the same room.
Create an endpoint to list available rooms.

Concepts Explained: Room-Based Messaging

Instead of a flat list of all active WebSocket connections, we’ll use a dictionary where keys are room names (e.g., “general”, “python-dev”, “random”) and values are lists of WebSocket objects for users in that specific room.

WebSocket on AI VOID

Chapter 5: Managing Active WebSocket Connections

Purpose of this Chapter

Concepts Explained: Connection Management

Chapter 7: Enhancing Chat Functionality: Room-based Messaging

Purpose of this Chapter

Concepts Explained: Room-Based Messaging