타입 리팩토링

 import { RoomDescription, RoomInfo } from "./dataType";
+import { keys } from "ts-transformer-keys";
 
 // 서버로 들어오는 메세지 타입을 정의합니다.
 // 'result' 속성은 서버 요청 결과에만 포함되는 특별한 속성입니다.
-export interface ServerInboundMessageMap {
+interface ServerInboundMessageMap {
   // 로그인을 시도합니다.
   login: {
     username: string;
@@ -47,7 +48,7 @@ export interface ServerInboundMessageMap {
 }
 
 // 서버에서 나가는 메세지 타입을 정의합니다.
-export interface ServerOutboundMessageMap {
+interface ServerOutboundMessageMap {
   // 방에 접속 중인 유저 목록이 업데이트 되었습니다.
   updateRoomUser: {
     state: "added" | "updated" | "removed";
@@ -121,10 +122,16 @@ export interface ServerOutboundMessageMap {
   };
 }
 
-export type ServerInboundMessage<Key extends keyof ServerInboundMessageMap> =
-  Omit<ServerInboundMessageMap[Key], "result">;
+export type ServerInboundMessageKey = keyof ServerInboundMessageMap;
 
-export interface ServerResponse<Key extends keyof ServerInboundMessageMap> {
+export const ServerInboundMessageKeyArray = keys<ServerInboundMessageMap>();
+
+export type ServerInboundMessage<Key extends ServerInboundMessageKey> = Omit<
+  ServerInboundMessageMap[Key],
+  "result"
+>;
+
+export interface ServerResponse<Key extends ServerInboundMessageKey> {
   ok: boolean;
   reason?: string;
   result?: "result" extends keyof ServerInboundMessageMap[Key]
@@ -134,3 +141,7 @@ export interface ServerResponse<Key extends keyof ServerInboundMessageMap> {
 
 export type ServerOutboundMessage<Key extends keyof ServerOutboundMessageMap> =
   ServerOutboundMessageMap[Key];
+
+export type ServerOutboundMessageKey = keyof ServerOutboundMessageMap;
+
+export const ServerOutboundMessageKeyArray = keys<ServerOutboundMessageMap>();

+{
+  "name": "common",
+  "version": "1.0.0",
+  "main": "index.js",
+  "license": "MIT",
+  "dependencies": {
+    "ts-transformer-keys": "^0.4.3"
+  }
+}

+# THIS IS AN AUTOGENERATED FILE. DO NOT EDIT THIS FILE DIRECTLY.
+# yarn lockfile v1
+
+
+ts-transformer-keys@^0.4.3:
+  version "0.4.3"
+  resolved "https://registry.yarnpkg.com/ts-transformer-keys/-/ts-transformer-keys-0.4.3.tgz#d62389a40f430c00ef98fb9575fb6778a196e3ed"
+  integrity sha512-pOTLlet1SnAvhKNr9tMAFwuv5283OkUNiq1fXTEK+vrSv+kxU3e2Ijr/UkqyX2vuMmvcNHdpXC31hob7ljH//g==

 import { Socket } from "socket.io";
-import { ServerOutboundMessage, ServerOutboundMessageMap } from "../../common";
+import { ServerOutboundMessage, ServerOutboundMessageKey } from "../../common";
 import { MessageHandlerChain } from "../message/MessageHandlerChain";
 import { Room } from "../room/Room";
 import { User } from "../user/User";
@@ -16,7 +16,7 @@ export class Connection {
     this.messageHandlerChain = new MessageHandlerChain(this);
   }
 
-  public send<T extends keyof ServerOutboundMessageMap>(
+  public send<T extends ServerOutboundMessageKey>(
     type: T,
     message: ServerOutboundMessage<T>
   ) {

 import { Connection } from "../connection/Connection";
 import {
   ServerInboundMessage,
-  ServerInboundMessageMap,
+  ServerInboundMessageKey,
   ServerResponse,
 } from "../../common/index";
 import { User } from "../user/User";
 
 type UserHandlerMap = {
-  [Key in keyof ServerInboundMessageMap]?: (
+  [Key in ServerInboundMessageKey]?: (
     user: User,
     message: ServerInboundMessage<Key>
   ) => ServerResponse<Key>;
@@ -21,7 +21,7 @@ export class MessageHandler {
   }
 
   public handle(
-    type: keyof ServerInboundMessageMap,
+    type: ServerInboundMessageKey,
     user: User,
     message: any,
     callback: Function

 import { Connection } from "../connection/Connection";
 import {
   ServerInboundMessage,
-  ServerInboundMessageMap,
+  ServerInboundMessageKey,
+  ServerOutboundMessageKeyArray,
   ServerResponse,
 } from "../../common/index";
-import { keys } from "ts-transformer-keys";
 import { User } from "../user/User";
 
 export class MessageHandlerChain {
@@ -24,8 +24,8 @@ export class MessageHandlerChain {
       }
     );
 
-    for (const key in keys<ServerInboundMessageMap>()) {
-      const type = key as keyof ServerInboundMessageMap;
+    for (const key in ServerOutboundMessageKeyArray) {
+      const type = key as ServerInboundMessageKey;
       this.connection.socket.on(key, (message: any, callback: Function) => {
         // Game > Room > User 순으로 전달
         if (

@@ -16,7 +16,6 @@
     "socket.io": "^4.1.2",
     "socket.io-client": "^4.1.2",
     "ts-node": "^9.1.1",
-    "ts-transformer-keys": "^0.4.3",
     "typescript": "^4.2.4",
     "uuid": "^8.3.2"
   },

@@ -6,7 +6,7 @@ import { MessageHandler } from "../message/MessageHandler";
 import {
   ServerInboundMessage,
   ServerOutboundMessage,
-  ServerOutboundMessageMap,
+  ServerOutboundMessageKey,
 } from "../../common";
 import { RoomDescription, RoomInfo, UserData } from "../../common/dataType";
 
@@ -86,7 +86,7 @@ export class Room {
     };
   }
 
-  public broadcast<T extends keyof ServerOutboundMessageMap>(
+  public broadcast<T extends ServerOutboundMessageKey>(
     type: T,
     message: ServerOutboundMessage<T>,
     except?: User

@@ -1657,11 +1657,6 @@ ts-node@^9.1.1:
     source-map-support "^0.5.17"
     yn "3.1.1"
 
-ts-transformer-keys@^0.4.3:
-  version "0.4.3"
-  resolved "https://registry.yarnpkg.com/ts-transformer-keys/-/ts-transformer-keys-0.4.3.tgz#d62389a40f430c00ef98fb9575fb6778a196e3ed"
-  integrity sha512-pOTLlet1SnAvhKNr9tMAFwuv5283OkUNiq1fXTEK+vrSv+kxU3e2Ijr/UkqyX2vuMmvcNHdpXC31hob7ljH//g==
-
 type-detect@^4.0.0, type-detect@^4.0.5:
   version "4.0.8"
   resolved "https://registry.yarnpkg.com/type-detect/-/type-detect-4.0.8.tgz#7646fb5f18871cfbb7749e69bd39a6388eb7450c"