Describe the sequence of actions on the client and server when sending a message in a real-time mobile game chat.

When sending a message in a real-time mobile game chat, the following sequence of actions occurs:

1. Client: The user types a message and presses the send button.
2. Client: The message is serialized (for example, into JSON) and sent to the server via WebSocket or another real-time protocol.
3. Server: Receives the message, checks it (validation, authorization).
4. Server: Saves the message to the database (if applicable) and distributes it to other chat participants.
5. Client: Receives new messages from the server and displays them in the chat interface.

Important points:

• Use of low-latency protocols (WebSocket, TCP).
• Error handling and resending if necessary.
• Ensuring security and spam protection.