feat: api 양식에 세션 아이디 포함

Author: dongyeon1031

src/main/java/com/example/customschatbotbe/domain/chatbot/controller/ChatBotController.java

@@ -4,6 +4,7 @@
 import com.example.customschatbotbe.domain.chatbot.dto.request.ChatRequest;
 import com.example.customschatbotbe.domain.chatbot.dto.response.ChatResponse;
 import com.example.customschatbotbe.global.exception.response.ApiResponse;
+import jakarta.servlet.http.HttpServletRequest;
 import lombok.RequiredArgsConstructor;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.PostMapping;
@@ -21,8 +22,9 @@ public class ChatBotController {
     private final ChatBotService chatBotService;
 
     @PostMapping
-    public Mono<ResponseEntity<ApiResponse<ChatResponse>>> chat(@RequestBody ChatRequest chatRequest) {
-        return chatBotService.generateReply(chatRequest)
+    public Mono<ResponseEntity<ApiResponse<ChatResponse>>> chat(@RequestBody ChatRequest chatRequest, HttpServletRequest httpServletRequest) {
+        String sessionId = httpServletRequest.getSession().getId();
+        return chatBotService.generateReply(chatRequest, sessionId)
                 .map(chatResponse -> ResponseEntity.ok(ApiResponse.success(SUCCESS, chatResponse)));
     }
 }

src/main/java/com/example/customschatbotbe/domain/chatbot/dto/request/AiChatRequest.java

@@ -0,0 +1,13 @@
+package com.example.customschatbotbe.domain.chatbot.dto.request;
+
+import lombok.Builder;
+import lombok.Getter;
+import lombok.Setter;
+
+@Getter
+@Setter
+@Builder
+public class AiChatRequest {
+    private String message;
+    private String sessionId;
+}

src/main/java/com/example/customschatbotbe/domain/chatbot/service/ChatBotService.java

@@ -1,5 +1,6 @@
 package com.example.customschatbotbe.domain.chatbot.service;
 
+import com.example.customschatbotbe.domain.chatbot.dto.request.AiChatRequest;
 import com.example.customschatbotbe.domain.chatbot.dto.request.ChatRequest;
 import com.example.customschatbotbe.domain.chatbot.dto.response.ChatResponse;
 import com.example.customschatbotbe.global.exception.BusinessException;
@@ -14,11 +15,14 @@
 public class ChatBotService {
     private final WebClient webClient;
 
-    public Mono<ChatResponse> generateReply(ChatRequest chatRequest){
+    public Mono<ChatResponse> generateReply(ChatRequest chatRequest, String sessionId){
         try {
             return webClient.post()
                     .uri("/predict")
-                    .bodyValue(chatRequest)
+                    .bodyValue(AiChatRequest.builder()
+                            .message(chatRequest.getMessage())
+                            .sessionId(sessionId)
+                            .build())
                     .retrieve()
                     .bodyToMono(ChatResponse.class);
         } catch (Exception e) {