Sending and Receiving Messages in Chat

This section outlines the process of sending and receiving messages within a chat object, utilizing the SocketIO library for real-time communication.

Sending Messages

To send a message in the chat, the following steps are executed:

  1. Connection Verification: The system checks if there is an active connection to a chat or workspace. If not connected, an error message is displayed.

  2. Response Wait Check: If the system is waiting for a response from a previous message, it prevents sending another message to avoid overlap.

  3. Chat ID Determination: If a chat ID is not explicitly provided, the one from the current session is used.

  4. Authorization String Retrieval: A request is made to obtain a message authorization string. This string is used to authenticate the message.

  5. Message Sending: The message, along with the chat ID and the message authorization string, is sent to the chat object via the SocketIO emit function.

Understanding SocketIO’s Emit Function

SocketIO’s emit function plays a crucial role in message transmission:

  • Purpose: The emit function is used to send custom events from the client to the server or vice versa.

  • Usage: In our chat system, emit is used to send messages to the server, where the message data is packaged in a JSON object.

Note

For a deeper understanding of SocketIO’s emit function and other key concepts, refer to the SocketIO official documentation.

Receiving Messages

Messages are received in real-time, thanks to the SocketIO library’s event-driven architecture. When a message is sent to the chat object, it’s processed and, if valid, distributed to all connected clients.

  1. Real-Time Communication: SocketIO allows for real-time communication between clients and the server, ensuring that messages are promptly delivered and received.

  2. Event Handling: The chat system listens for message events and handles them accordingly, facilitating interactive communication.