Support multi-clients chat together, and at the same, the LunLunBot will join the chat.

• Ktor + Netty to use server functionality without having to rely on an external app container.
• Ktor WebSocket the main communication mechanism for the chat.
• Arrow-kt the FP coding style for Kotlin.

In charge of all the messages exchange for clients and the bridge to connect to the AI brain.

Main: /KtorWebsocketsChat/server/sre/main/kotlin/com/clluv/chat/server/Application.kt

The chat client, also send some commands to the server to let others know the client is adding/leavning to the chat.

Main: /KtorWebsocketsChat/client/sre/main/kotlin/com/clluv/chat/client/ChatClient.kt

Clients can type /commads to list all supporting commands

/commands

Chat sessions are usually long-lived, with the client receiving messages from other participants over a long period of time.

Unlike regular HTTP requests, WebSocket connections can be kept open for a long time and have an easy interface for exchanging data between the client and server in the form of frames.

We can think frames as WebSocket messages which come in different types (text, binary, close, ping/pong).

Because Ktor provides high-level abstractions over the WebSocket protocol, we can concentrate on text and binary frames, and leave the handling of other frames to the framework.

Suspending functions are the center of everything coroutines.

A suspending function is simply a function that can be paused and resumed at a later time.

They can execute a long-running operation and wait for it to complete without blocking.

An object declaration inside a class can be marked with the companion keyword.

Members of the companion object can be called simply by using the class name as the qualifier.

The name of the companion object can be omitted, in which case the name Companion will be used.

Class members can access the private members of the corresponding companion object.

• Creating a WebSocket Chat.
• BrainShop by Acobat.
• Prepare Docker.