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Cocotalk 채팅 서버

목차

⚒ 개발 도구

  • Spring Boot
  • Spring Cloud Eureka Client
  • MongoDB
  • WebSocket
  • STOMP
  • Kafka
  • Mapstruct

🖥 기능 설명

채팅방

  • 1:1, 그룹 채팅방 생성
  • roomId로 채팅방 조회
  • roomId로 채팅방과 첫 메시지 페이지 조회
  • user가 참가중인 채팅방 리스트 조회
  • userId와 상대방 userId로 1:1 채팅방 조회
  • roomId로 채팅방로 채팅방 삭제

메시징

  • 채팅 메시지 pub/sub
  • 채팅방 초대 pub/sub
  • 채팅방 나가기 pub/sub
  • AWAKE 메시지 pub/sub
  • 채팅 메시지 리스트 Pagination

🔧 프로젝트 명세

️ 배포 방법

환경

  • 사용 버전
    • JDK 11

추가 설정 및 파일

  1. application.yml
    1. /src/main/resources 으로 이동합니다.
    2. 아래와 같은 내용으로 resources 안에 application.yml를 생성합니다.
server:
  port: 8080

spring:
  profiles:
    group:
      "dev": "common, devdb"
      "prod": "common, proddb"

---

spring:
  config:
    activate:
      on-profile: devdb # optional, but recommend
  data:
    mongodb:
      host: {{ your developing mongodb host }}
      port: {{ your developing mongodb port }}
      database: {{ your developing mongodb database }}
      username: {{ your developing mongodb username }}
      password: {{ your developing mongodb password }}

---

spring:
  config:
    activate:
      on-profile: proddb
  data:
    mongodb:
      host: {{ your production mongodb host }}
      port: {{ your production mongodb port }}
      database: {{ your production mongodb database }}
      username: {{ your production mongodb username }}
      password: {{ your production mongodb password }}

---

spring:
  application:
    name: chat-service
  config:
    activate:
      on-profile: common
  mvc:
    pathmatch:
      matching-strategy: ant_path_matcher # swagger 세팅
  devtools:
    restart:
      enabled: true
    livereload:
      enabled: true

  kafka:
    push-topic: push
    chat-topic: chat
    consumer:
      bootstrap-servers: {{ your bootstrap server uri }}
      group-id: {{ kafka group id }}
      auto-offset-reset: latest
      key-deserializer: org.apache.kafka.common.serialization.StringDeserializer
      value-deserializer: org.apache.kafka.common.serialization.StringDeserializer
    producer:
      bootstrap-servers: {{ your bootstrap server uri }}
      key-serializer: org.apache.kafka.common.serialization.StringSerializer
      value-serializer: org.apache.kafka.common.serialization.StringSerializer

  servlet:
    multipart:
      maxFileSize: 200MB
      maxRequestSize: 200MB

management:
  endpoints:
    web:
      exposure:
        include: health, info, metrics, prometheus
  metrics:
    tags:
      application: ${spring.application.name}

cloud:
  aws:
    credentials:
      accessKey: {{ your credentials accessKey }}
      secretKey: {{ your credentials secretKey }}
    s3:
      bucket: {{ your bucket name }}
    region:
      static: {{ region }}
    stack:
      auto: false
    cloudfront:
      domain: {{ your cloudfront domain }}

eureka:
  instance:
    instance-id: {{ eureka client id }}
    hostname: {{ eureka client hostname }}
    ip-address: {{ eureka client ip address }}
    prefer-ip-address: true # optional

  client:
    register-with-eureka: true # setting whether to register for Service Discovery
    fetch-registry: true
    service-url:
      defaultZone: {{ eureka server url }} # A client is registered by sending a POST request to it.

jwt:
  secret: {{ your jwt secret }}

cocotalk:
  message-bundle-limit: {{ message bundle limit }}
  message-paging-size: {{ message paging size }} # must be little or equals message-bundle-limit

oci:
  user:
    url: {{ user-server-url:port/token }}
  presence:
    websocket-url: {{ presence-server-url:port/ws }}

---

spring:
  config:
    activate:
      on-profile: dev

---

spring:
  config:
    activate:
      on-profile: prod

---

spring:
  profiles:
    active: {{ active profile }}

🎞 산출물

API 명세서

Swagger UI API Docs 바로가기

  • 테스트 페이지 [GET] /
  • 채팅방 생성 [POST] /rooms
  • user가 참가중인 채팅방 리스트 조회 [GET] /rooms/list
  • roomId로 채팅방 조회 [GET] /rooms/{id}
  • roomId로 채팅방과 첫 메시지 페이지 조회 [GET] /rooms/{id}/tail
  • userId와 상대방 userId로 1:1 채팅방 조회 [GET] /rooms/private?userid=
  • roomId로 채팅방 삭제 [DELETE] /rooms/{id}
  • 채팅 메시지 리스트 Pagination [GET] /messages?roomid={}bundleid={}count={}

STOMP WebSocket 메시징

Publish Destination

  • 1:1, 그룹 채팅방 생성 /chatroom/new
  • 채팅 메시지 Publish /chatroom/{roomId}/message/send
  • 채팅방 초대 Publish /chatroom/{roomId}/message/invite
  • 채팅방 나가기 Publish /chatroom/{roomId}/message/leave
  • Awake 메시지 Publish /chatroom/{roomId}/message/awake

Subscribe Topic

  • 채팅방 리스트
    • 메시지 토픽 '/topic/' + userId + '/message'
    • 채팅방 정보 토픽'/topic/' + userId + '/room'
    • 채팅방 생성 정보 토픽 '/topic/' + userId + '/room/new'
  • 채팅방 내부
    • 메시지 토픽 '/topic/' + roomId + '/message'
    • 채팅방 정보 토픽 '/topic/' + roomId + '/room'

DB ERD

cocotalk-chat-erd