WebSocket Server Updates: Key Improvements & New Features
What developments have taken place today?
Here’s a summary of the commit descriptions, focusing on improvements and key changes:
WebSocket Server Enhancements:
- Message Structure Refinement (v1): The structure of messages transmitted over WebSockets has been updated to use a nested object format with “message” as the key. This improves how receiving systems can process the message content, likely providing more structured data for handling.
- User Connection Management: A new
UserConnection
struct and associated functions (AddUserConnection
,RemoveUserConnection
,AddChannelToUser
,RemoveChannelFromUser
,sendErrorToUser
) have been introduced to manage user connections, channel subscriptions, and error reporting within the server’s state. These additions enhance thread safety and provide a more robust mechanism for managing user interactions. - WebSocket Command System: A comprehensive WebSocket command system has been implemented utilizing a
WSCommand
base struct and derived structs (WSAuth
,NewWSNewMessage
,NewWSMessageSeen
,NewWSMessageDelivered
). This refactoring improves code organization, testability, and facilitates the handling of various WebSocket commands. JSON marshaling/unmarshalling functions have also been added to support data exchange. - Bot Interaction Simulation: A new test case (
TestTwoBotsChat
) simulates bot interactions over the WebSocket server, verifying message routing and delivery between bots. This ensures the core functionality for bot communication is working correctly. - Redis Channel Broadcasting: The system now utilizes Redis channels to broadcast messages to connected clients via
PushToRedisChannel
. This provides a scalable method for distributing information across the server’s user base.
Authentication Improvements:
- Simplified Authentication Flow: An unnecessary error handling block after successful authentication has been removed, streamlining the authentication process and improving efficiency.
Testing & Simulation:
- Enhanced WebSocket Test Functionality: The test function now includes more thorough checks for message handling during websocket communication.
- WebSocket Activity Simulator Script: A bash script has been added to simulate WebSocket activity by randomly sending messages or simulating user behavior, allowing developers to easily test the server’s functionality in a controlled environment.
Code Cleanup & Refactoring:
- Analytics Removal: Code related to tracking and analytics (message handling, SSE, analytics.js) has been removed, suggesting a shift in focus away from extensive data collection.
- .gitignore Update: The
.gitignore
file has been updated to exclude itself, preventing accidental commits of the ignore file. - Build & Dependency Updates: The project’s build process and dependencies have been upgraded (NVM, Dockerfile).
Important Changes Summary:
These changes represent a significant upgrade to the WebSocket server’s architecture and functionality. The introduction of structured message handling, robust user connection management, and a centralized command system greatly improve maintainability, testability, and scalability. The addition of the simulation script is a valuable tool for development and testing. Furthermore, simplifying the authentication flow and removing the analytics code demonstrates a focus on streamlining the core server functionality while reducing unnecessary complexity.