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Meeting Room Booking Facility with WebSockets in Spring Boot App

WebSocket Protocol Setup

Broker Backed Messaging

  • StompEndpoint - /ws-prototype
    • StompClient is created with above endpoint, means WebSocket connection is established.
  • In Memory MessageBroker
    • Application DestinationPrefixes - /bot/booking
      • Any messages that come to above prefix will be routed to @MessageMapping(“/message/{uuid}”) annotated methods
        • @Payload ChatMessage
    • SimpleBroker - /meetingroom
      • @SendTo("/meetingroom/{uuid}”) will carry the message (whatever method returns) back to the clients, whoever subscribed to /meetingroom/{uuid}

WebSocket Event Listeners

  • Log when a new client is connected and disconnected
    • Connect
    • Disconnect

Database and Service

Database Schema Design

  • H2
  • Init Script For Reference Data

Service Layer Should Do Below (Implemented in DSL integration)

  • Available Meeting Rooms
  • Available Timings For Selected Meeting Room
  • Book Meeting Room
  • Release Meeting Room (pending)

Environment Setup

Dockerizing (From Local Machine)

  • Create a Bootable Jar
cd book-a-meeting-room
./gradlew clean build
  • Create a Docker Image (from Dockerfile)
docker build --no-cache -t book-a-meeting-room-app .
  • Run The Application
docker run -p 9000:8080 book-a-meeting-room-app

Application Should be Running at http://localhost:9000/

Deploy to Elastic BeanStalk

  • Simply deploy the jar file or docker image

Deploy thru AWS CodePipeline

  • CodePipeline to pickup from Github