Demo Websocket Server (proof of concept)

Arch overview

Describe main processes

Send message

Subscribe to channel

Avalible websocket request (for client)

Action	Example message in json
subscribe to the channel room1	{ "type": "SUBSCRIBE", "payload": "room1"}
unsubscribe from the channel room1	{ "type": "UNSUBSCRIBE", "payload": "room1"}
answer on ping message	{ "type": "PONG", "payload": "PONG"}

Avalible websocket response (for client)

Action	Example message in json
Subscribe result	{ "type": "RESPONSE_SUBSCRIBE", "payload": "SUBSCRIBE_OK(room1)", code: 200}
Subscribe result (access denied)	{ "type": "RESPONSE_SUBSCRIBE", "payload": "SUBSCRIBE_ACCESS_DENIED(room1)", code: 403}
Unsubscrube result	{ "type": "RESPONSE_UNSUBSCRIBE", "payload": "UNSUBSCRIBE_OK(room1)", code: 200}
Receiving data	{ "type": "DATA", "payload": "message text or json", code: 200}
Disconnect	{ "type": "DISCONNECT", "payload": "DISCONNECT", code: 200}
Ping (check connection, you should answer PONG)	{ "type": "PING", "payload": "PING", code: 200}

Build and try

Start redis

docker-compose up -d

Start demo_ws_push_executor (port 8001)

./gradlew :demo_ws_push_executor:bootRun

Start demo_ws_public_executor (port 8000)

./gradlew :demo_ws_public_executor:bootRun

Start demo push client for send message

run net/alfss/demowsclient/DemoPushClientMain.kt

Start demo websocket client

run net/alfss/demowsclient/DemoWsClientMain.kt