feat: 유저 임시 UUID 발급

src/main/java/com/project/oof/user/controller/UserController.java

@@ -0,0 +1,18 @@
+package com.project.oof.user.controller;
+
+
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import java.util.UUID;
+
+@RestController
+@RequestMapping("/users")
+public class UserController {
+
+    @GetMapping("create")
+    public UUID getUserId() {
+        return UUID.randomUUID();
+    }
+}

src/main/java/com/project/oof/user/service/UserService.java

@@ -0,0 +1,25 @@
+package com.project.oof.user.service;
+
+import com.project.oof.gpt.service.ChatHistoryService;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Service;
+
+import java.util.HashMap;
+import java.util.Map;
+import java.util.UUID;
+
+@Service
+@RequiredArgsConstructor
+public class UserService {
+
+    private final Map<UUID, ChatHistoryService> userChatHistories = new HashMap<>();
+
+    public ChatHistoryService getChatHistory(UUID userId) {
+        return userChatHistories.computeIfAbsent(userId, id -> new ChatHistoryService());
+    }
+
+    public void addUser(UUID userId) {
+        userChatHistories.putIfAbsent(userId, new ChatHistoryService());
+    }
+
+}