WebSockets

  1. Server-Side Implementation
    1. Choosing a WebSocket Server Library
      1. Criteria for Library Selection
        1. Node.js Libraries
          1. ws Library
            1. Socket.IO
            2. Python Libraries
              1. websockets Library
                1. Django Channels
                  1. FastAPI WebSockets
                  2. Java Libraries
                    1. Java API for WebSocket (JSR 356)
                      1. Spring Framework WebSocket Support
                      2. Go Libraries
                        1. gorilla/websocket
                        2. Other Language Libraries
                          1. Ruby Libraries
                            1. C# Libraries
                              1. PHP Libraries
                            2. Core Server Logic
                              1. Handling New Connections
                                1. Accepting Client Connections
                                  1. Authenticating Clients
                                  2. Managing Connected Clients
                                    1. Client Tracking Structures
                                      1. Scalability Considerations
                                      2. Receiving and Processing Messages
                                        1. Message Parsing
                                          1. Handling Text Data
                                            1. Handling Binary Data
                                            2. Sending Messages to Clients
                                              1. Unicasting (Single Client)
                                                1. Broadcasting (All Clients)
                                                  1. Multicasting (Subset of Clients)
                                                  2. Handling Client Disconnections
                                                    1. Detecting Disconnections
                                                      1. Resource Cleanup
                                                      2. Error Handling and Logging
                                                        1. Logging Connection Events
                                                          1. Handling Protocol Errors
                                                            1. Monitoring Server Health

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                                                        4. Client-Side WebSocket API (JavaScript)

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                                                        6. Security Considerations