feat(main-api): 방이 가지고 있는 내부 아이피를 반환하는 api

modules/main-api/src/main/java/com/whoz_in/main_api/query/private_ip/PrivateIpList.java

@@ -0,0 +1,8 @@
+package com.whoz_in.main_api.query.private_ip;
+
+import com.whoz_in.main_api.query.shared.application.Response;
+import java.util.List;
+
+public record PrivateIpList(
+        List<String> ipList
+) implements Response {}

modules/main-api/src/main/java/com/whoz_in/main_api/query/private_ip/PrivateIpListGet.java

@@ -0,0 +1,7 @@
+package com.whoz_in.main_api.query.private_ip;
+
+import com.whoz_in.main_api.query.shared.application.Query;
+
+public record PrivateIpListGet(
+  String room
+) implements Query {}

modules/main-api/src/main/java/com/whoz_in/main_api/query/private_ip/PrivateIpListGetHandler.java

@@ -0,0 +1,17 @@
+package com.whoz_in.main_api.query.private_ip;
+
+import com.whoz_in.main_api.query.shared.application.QueryHandler;
+import com.whoz_in.main_api.shared.application.Handler;
+import com.whoz_in.main_api.shared.caching.private_ip.PrivateIpStore;
+import lombok.RequiredArgsConstructor;
+
+@Handler
+@RequiredArgsConstructor
+public class PrivateIpListGetHandler implements QueryHandler<PrivateIpListGet, PrivateIpList> {
+    private final PrivateIpStore privateIpStore;
+    @Override
+    public PrivateIpList handle(PrivateIpListGet query) {
+        return new PrivateIpList(privateIpStore.get(query.room()).values().stream()
+                .toList());
+    }
+}

modules/main-api/src/main/java/com/whoz_in/main_api/query/private_ip/PrivateIpQueryController.java

@@ -0,0 +1,25 @@
+package com.whoz_in.main_api.query.private_ip;
+
+import com.whoz_in.main_api.query.shared.application.QueryBus;
+import com.whoz_in.main_api.query.shared.presentation.QueryController;
+import com.whoz_in.main_api.shared.presentation.CrudResponseCode;
+import com.whoz_in.main_api.shared.presentation.ResponseEntityGenerator;
+import com.whoz_in.main_api.shared.presentation.SuccessBody;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+@RequestMapping("/api/v1")
+public class PrivateIpQueryController extends QueryController {
+    public PrivateIpQueryController(QueryBus queryBus) {
+        super(queryBus);
+    }
+
+    @GetMapping("/private-ip/{room}")
+    public ResponseEntity<SuccessBody<PrivateIpList>> getPrivateIps(@PathVariable String room){
+        return ResponseEntityGenerator.success(ask(new PrivateIpListGet(room)), CrudResponseCode.READ);
+    }
+}